# Pregnancy, childbirth and the puerperium (O00-O99)Pregnancy, childbirth and the puerperium (O00-O99)

    Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
    Codes from this chapter are for use for conditions related to or aggrevated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
    Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
       1st trimester- less than 14 weeks 0 days
       2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
       3rd trimester- 28 weeks 0 days until delivery
    Excludes1: supervision of normal pregnancy (Z34.-)
    Excludes2: mental and behavioral disorders associated with the puerperium (F53)
       obstetrical tetanus (A34)
       postpartum necrosis of pituitary gland (E23.0)
       puerperal osteomalacia (M83.0)
    This chapter contains the following blocks:
    O00-O08 Pregnancy with abortive outcome
    O09 Supervision of high risk pregnancy
    O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
    O20-O29 Other maternal disorders predominantly related to pregnancy
    O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems
    O60-O77 Complications of labor and delivery
    O80, O82 Encounter for delivery
    O85-O92 Complications predominantly related to the puerperium
    O94-O9A Other obstetric conditions, not elsewhere classified

# Pregnancy with abortive outcome (O00-O08)Pregnancy with abortive outcome (O00-O08)

    Excludes1: continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)

## O00 Ectopic pregnancyO00 Ectopic pregnancy

    Includes: ruptured ectopic pregnancy
    Use additional code from category O08 to identify any associated complication
    O00.0 Abdominal pregnancy
       Excludes1: maternal care for viable fetus in abdominal pregnancy (O36.7-)
    O00.1 Tubal pregnancy
       Fallopian pregnancy
       Rupture of (fallopian) tube due to pregnancy
       Tubal abortion
    O00.2 Ovarian pregnancy
    O00.8 Other ectopic pregnancy
       Cervical pregnancy
       Cornual pregnancy
       Intraligamentous pregnancy
       Mural pregnancy
    O00.9 Ectopic pregnancy, unspecified

## O01 Hydatidiform moleO01 Hydatidiform mole

    Use additional code from category O08 to identify any associated complication.
    Excludes1: chorioadenoma (destruens) (D39.2)
       malignant hydatidiform mole (D39.2)
    O01.0 Classical hydatidiform mole
       Complete hydatidiform mole
    O01.1 Incomplete and partial hydatidiform mole
    O01.9 Hydatidiform mole, unspecified
       Trophoblastic disease NOS
       Vesicular mole NOS

## O02 Other abnormal products of conceptionO02 Other abnormal products of conception

    Use additional code from category O08 to identify any associated complication.
    Excludes1: papyraceous fetus (O31.0-)
    O02.0 Blighted ovum and nonhydatidiform mole
       Carneous mole
       Fleshy mole
       Intrauterine mole NOS
       Molar pregnancy NEC
       Pathological ovum
    O02.1 Missed abortion
       Early fetal death, before completion of 20 weeks of gestation, with retention of dead fetus
       Excludes1: failed induced abortion (O07.-)
          fetal death (intrauterine) (late) (O36.4)
          missed abortion with blighted ovum (O02.0)
          missed abortion with hydatidiform mole (O01.-)
          missed abortion with nonhydatidiform (O02.0)
          missed delivery (O36.4)
          stillbirth (P95)
    O02.8 Other specified abnormal products of conception
       Excludes1: abnormal products of conception with blighted ovum (O02.0)
          abnormal ​products of conception with hydatidiform mole (O01.-)
          abnormal products of conception with nonhydatidiform mole (O02.0)
    O02.9 Abnormal product of conception, unspecified

## O03 Spontaneous abortionO03 Spontaneous abortion

    Note: Incomplete abortion includes retained products of conception following spontaneous abortion
       Includes: miscarriage
    O03.0 Genital tract and pelvic infection following incomplete spontaneous abortion
       Endometritis following incomplete spontaneous abortion
       Oophoritis following incomplete spontaneous abortion
       Parametritis following incomplete spontaneous abortion
       Pelvic peritonitis following incomplete spontaneous abortion
       Salpingitis following incomplete spontaneous abortion
       Salpingo-oophoritis following incomplete spontaneous abortion
       Excludes1: sepsis following incomplete spontaneous abortion (O03.37)
          urinary tract infection following incomplete spontaneous abortion (O03.38)
    O03.1 Delayed or excessive hemorrhage following incomplete spontaneous abortion
       Afibrinogenemia following incomplete spontaneous abortion
       Defibrination syndrome following incomplete spontaneous abortion
       Hemolysis following incomplete spontaneous abortion
       Intravascular coagulation following incomplete spontaneous abortion
    O03.2 Embolism following incomplete spontaneous abortion
       Air embolism following incomplete spontaneous abortion
       Amniotic fluid embolism following incomplete spontaneous abortion
       Blood-clot embolism following incomplete spontaneous abortion
       Embolism NOS following incomplete spontaneous abortion
       Fat embolism following incomplete spontaneous abortion
       Pulmonary embolism following incomplete spontaneous abortion
       Pyemic embolism following incomplete spontaneous abortion
       Septic or septicopyemic embolism following incomplete spontaneous abortion
       Soap embolism following incomplete spontaneous abortion
    O03.3 Other and unspecified complications following incomplete spontaneous abortion
       O03.30 Unspecified complication following incomplete spontaneous abortion
       O03.31 Shock following incomplete spontaneous abortion
          Circulatory collapse following incomplete spontaneous abortion
          Shock (postprocedural) following incomplete spontaneous abortion
          Excludes1: ​shock due to infection following incomplete spontaneous abortion (O03.37)
       O03.32 Renal failure following incomplete spontaneous abortion
          Kidney failure (acute) following incomplete spontaneous abortion
          Oliguria following incomplete spontaneous abortion
          Renal shutdown following incomplete spontaneous abortion
          Renal tubular necrosis following incomplete spontaneous abortion
          Uremia following incomplete spontaneous abortion
       O03.33 Metabolic disorder following incomplete spontaneous abortion
       O03.34 Damage to pelvic organs following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of bladder following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of bowel following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of broad ligament following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of cervix following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of periurethral tissue following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of uterus following incomplete spontaneous abortion
          Laceration, perforation, tear or chemical damage of vagina following incomplete spontaneous abortion
       O03.35 Other venous complications following incomplete spontaneous abortion
       O03.36 Cardiac arrest following incomplete spontaneous abortion
       O03.37 Sepsis following incomplete spontaneous abortion
          Use additional code (B95-B97), to identify infectious agent
          Use additional code (R65.2-) to identify severe sepsis, if applicable
          Excludes1: septic or septicopyemic embolism following incomplete spontaneous abortion (O03.2)
       O03.38 Urinary tract infection following incomplete spontaneous abortion
          Cystitis following incomplete spontaneous abortion
       O03. ​39 Incomplete spontaneous abortion with other complications
    O03.4 Incomplete spontaneous abortion without complication
    O03.5 Genital tract and pelvic infection following complete or unspecified spontaneous abortion
       Endometritis following complete or unspecified spontaneous abortion
       Oophoritis following complete or unspecified spontaneous abortion
       Parametritis following complete or unspecified spontaneous abortion
       Pelvic peritonitis following complete or unspecified spontaneous abortion
       Salpingitis following complete or unspecified spontaneous abortion
       Salpingo-oophoritis following complete or unspecified spontaneous abortion
       Excludes1: sepsis following complete or unspecified spontaneous abortion (O03.87)
          urinary tract infection following complete or unspecified spontaneous abortion (O03.88)
    O03.6 Delayed or excessive hemorrhage following complete or unspecified spontaneous abortion
       Afibrinogenemia following complete or unspecified spontaneous abortion
       Defibrination syndrome following complete or unspecified spontaneous abortion
       Hemolysis following complete or unspecified spontaneous abortion
       Intravascular coagulation following complete or unspecified spontaneous abortion
    O03.7 Embolism following complete or unspecified spontaneous abortion
       Air embolism following complete or unspecified spontaneous abortion
       Amniotic fluid embolism following complete or unspecified spontaneous abortion
       Blood-clot embolism following complete or unspecified spontaneous abortion
       Embolism NOS following complete or unspecified spontaneous abortion
       Fat embolism following complete or unspecified spontaneous abortion
       Pulmonary embolism following complete or unspecified spontaneous abortion
       Pyemic embolism following complete or unspecified spontaneous abortion
       Septic or septicopyemic embolism following complete or unspecified spontaneous abortion
       Soap embolism following complete or unspecified spontaneous abortion
    O03.8 Other and unspecified complications following complete or unspecified spontaneous abortion
       O03.80 Unspecified complication following complete or unspecified spontaneous abortion
       O03.81 Shock following complete or unspecified spontaneous abortion
          Circulatory ​collapse following complete or unspecified spontaneous abortion
          Shock (postprocedural) following complete or unspecified spontaneous abortion
          Excludes1: shock due to infection following complete or unspecified spontaneous abortion (O03.87)
       O03.82 Renal failure following complete or unspecified spontaneous abortion
          Kidney failure (acute) following complete or unspecified spontaneous abortion
          Oliguria following complete or unspecified spontaneous abortion
          Renal shutdown following complete or unspecified spontaneous abortion
          Renal tubular necrosis following complete or unspecified spontaneous abortion
          Uremia following complete or unspecified spontaneous abortion
       O03.83 Metabolic disorder following complete or unspecified spontaneous abortion
       O03.84 Damage to pelvic organs following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of bladder following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of bowel following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of broad ligament following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of cervix following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of periurethral tissue following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of uterus following complete or unspecified spontaneous abortion
          Laceration, perforation, tear or chemical damage of vagina following complete or unspecified spontaneous abortion
       O03.85 Other venous complications following complete or unspecified spontaneous abortion
       O03. ​86 Cardiac arrest following complete or unspecified spontaneous abortion
       O03.87 Sepsis following complete or unspecified spontaneous abortion
          Use additional code (B95-B97), to identify infectious agent
          Use additional code (R65.2-) to identify severe sepsis, if applicable
          Excludes1: septic or septicopyemic embolism following complete or unspecified spontaneous abortion (O03.7)
       O03.88 Urinary tract infection following complete or unspecified spontaneous abortion
          Cystitis following complete or unspecified spontaneous abortion
       O03.89 Complete or unspecified spontaneous abortion with other complications
    O03.9 Complete or unspecified spontaneous abortion without complication
       Miscarriage NOS
       Spontaneous abortion NOS

## O04 Complications following (induced) termination of pregnancyO04 Complications following (induced) termination of pregnancy

    Includes: complications following (induced) termination of pregnancy
    Excludes1: encounter for elective termination of pregnancy, uncomplicated (Z33.2)
       failed attempted termination of pregnancy (O07.-)
    O04.5 Genital tract and pelvic infection following (induced) termination of pregnancy
       Endometritis following (induced) termination of pregnancy
       Oophoritis following (induced) termination of pregnancy
       Parametritis following (induced) termination of pregnancy
       Pelvic peritonitis following (induced) termination of pregnancy
       Salpingitis following (induced) termination of pregnancy
       Salpingo-oophoritis following (induced) termination of pregnancy
       Excludes1: sepsis following (induced) termination of pregnancy (O04.87)
          urinary tract infection following (induced) termination of pregnancy (O04.88)
    O04.6 Delayed or excessive hemorrhage following (induced) termination of pregnancy
       Afibrinogenemia following (induced) termination of pregnancy
       Defibrination syndrome following (induced) termination of pregnancy
       Hemolysis following (induced) termination of pregnancy
       Intravascular coagulation following (induced) termination of pregnancy
    O04.7 Embolism following (induced) termination of pregnancy
       Air ​embolism following (induced) termination of pregnancy
       Amniotic fluid embolism following (induced) termination of pregnancy
       Blood-clot embolism following (induced) termination of pregnancy
       Embolism NOS following (induced) termination of pregnancy
       Fat embolism following (induced) termination of pregnancy
       Pulmonary embolism following (induced) termination of pregnancy
       Pyemic embolism following (induced) termination of pregnancy
       Septic or septicopyemic embolism following (induced) termination of pregnancy
       Soap embolism following (induced) termination of pregnancy
    O04.8 (Induced) termination of pregnancy with other and unspecified complications
       O04.80 (Induced) termination of pregnancy with unspecified complications
       O04.81 Shock following (induced) termination of pregnancy
          Circulatory collapse following (induced) termination of pregnancy
          Shock (postprocedural) following (induced) termination of pregnancy
          Excludes1: shock due to infection following (induced) termination of pregnancy (O04.87)
       O04.82 Renal failure following (induced) termination of pregnancy
          Kidney failure (acute) following (induced) termination of pregnancy
          Oliguria following (induced) termination of pregnancy
          Renal shutdown following (induced) termination of pregnancy
          Renal tubular necrosis following (induced) termination of pregnancy
          Uremia following (induced) termination of pregnancy
       O04.83 Metabolic disorder following (induced) termination of pregnancy
       O04.84 Damage to pelvic organs following (induced) termination of pregnancy
          Laceration, perforation, tear or chemical damage of bladder following (induced) termination of pregnancy
          Laceration, perforation, tear or chemical damage of bowel following (induced) termination of pregnancy
          Laceration, perforation, tear or chemical damage of broad ligament following (induced) termination of pregnancy
          Laceration, perforation, tear or chemical damage of cervix following (induced) termination of pregnancy
          Laceration, perforation, tear or chemical damage of periurethral tissue following (induced) termination of pregnancy
          Laceration, perforation, tear or chemical damage of uterus following (induced) termination of pregnancy
          Laceration, ​perforation, tear or chemical damage of vagina following (induced) termination of pregnancy
       O04.85 Other venous complications following (induced) termination of pregnancy
       O04.86 Cardiac arrest following (induced) termination of pregnancy
       O04.87 Sepsis following (induced) termination of pregnancy
          Use additional code (B95-B97), to identify infectious agent
          Use additional code (R65.2-) to identify severe sepsis, if applicable
          Excludes1: septic or septicopyemic embolism following (induced) termination of pregnancy (O04.2)
       O04.88 Urinary tract infection following (induced) termination of pregnancy
          Cystitis following (induced) termination of pregnancy
       O04.89 (Induced) termination of pregnancy with other complications

## O07 Failed attempted termination of pregnancyO07 Failed attempted termination of pregnancy

    Includes: failure of attempted induction of termination of pregnancy
       incomplete elective abortion
    Excludes1: incomplete spontaneous abortion (O03.0-)
    O07.0 Genital tract and pelvic infection following failed attempted termination of pregnancy
       Endometritis following failed attempted termination of pregnancy
       Oophoritis following failed attempted termination of pregnancy
       Parametritis following failed attempted termination of pregnancy
       Pelvic peritonitis following failed attempted termination of pregnancy
       Salpingitis following failed attempted termination of pregnancy
       Salpingo-oophoritis following failed attempted termination of pregnancy
       Excludes1: sepsis following failed attempted termination of pregnancy (O07.37)
          urinary tract infection following failed attempted termination of pregnancy (O07.38)
    O07.1 Delayed or excessive hemorrhage following failed attempted termination of pregnancy
       Afibrinogenemia following failed attempted termination of pregnancy
       Defibrination syndrome following failed attempted termination of pregnancy
       Hemolysis following failed attempted termination of pregnancy
       Intravascular coagulation following failed attempted termination of pregnancy
    O07.2 Embolism following failed attempted termination of pregnancy
       Air embolism following failed attempted termination of pregnancy
       Amniotic ​fluid embolism following failed attempted termination of pregnancy
       Blood-clot embolism following failed attempted termination of pregnancy
       Embolism NOS following failed attempted termination of pregnancy
       Fat embolism following failed attempted termination of pregnancy
       Pulmonary embolism following failed attempted termination of pregnancy
       Pyemic embolism following failed attempted termination of pregnancy
       Septic or septicopyemic embolism following failed attempted termination of pregnancy
       Soap embolism following failed attempted termination of pregnancy
    O07.3 Failed attempted termination of pregnancy with other and unspecified complications
       O07.30 Failed attempted termination of pregnancy with unspecified complications
       O07.31 Shock following failed attempted termination of pregnancy
          Circulatory collapse following failed attempted termination of pregnancy
          Shock (postprocedural) following failed attempted termination of pregnancy
          Excludes1: shock due to infection following failed attempted termination of pregnancy (O07.37)
       O07.32 Renal failure following failed attempted termination of pregnancy
          Kidney failure (acute) following failed attempted termination of pregnancy
          Oliguria following failed attempted termination of pregnancy
          Renal shutdown following failed attempted termination of pregnancy
          Renal tubular necrosis following failed attempted termination of pregnancy
          Uremia following failed attempted termination of pregnancy
       O07.33 Metabolic disorder following failed attempted termination of pregnancy
       O07.34 Damage to pelvic organs following failed attempted termination of pregnancy
          Laceration, perforation, tear or chemical damage of bladder following failed attempted termination of pregnancy
          Laceration, perforation, tear or chemical damage of bowel following failed attempted termination of pregnancy
          Laceration, perforation, tear or chemical damage of broad ligament following failed attempted termination of pregnancy
          Laceration, ​perforation, tear or chemical damage of cervix following failed attempted termination of pregnancy
          Laceration, perforation, tear or chemical damage of periurethral tissue following failed attempted termination of pregnancy
          Laceration, perforation, tear or chemical damage of uterus following failed attempted termination of pregnancy
          Laceration, perforation, tear or chemical damage of vagina following failed attempted termination of pregnancy
       O07.35 Other venous complications following failed attempted termination of pregnancy
       O07.36 Cardiac arrest following failed attempted termination of pregnancy
       O07.37 Sepsis following failed attempted termination of pregnancy
          Use additional code (B95-B97), to identify infectious agent
          Use additional code (R65.2-) to identify severe sepsis, if applicable
          Excludes1: septic or septicopyemic embolism following failed attempted termination of pregnancy (O07.2)
       O07.38 Urinary tract infection following failed attempted termination of pregnancy
          Cystitis following failed attempted termination of pregnancy
       O07.39 Failed attempted termination of pregnancy with other complications
    O07.4 Failed attempted termination of pregnancy without complication

## O08 Complications following ectopic and molar pregnancyO08 Complications following ectopic and molar pregnancy

    This category is for use with categories O00-O02 to identify any associated complications
    O08.0 Genital tract and pelvic infection following ectopic and molar pregnancy
       Endometritis following ectopic and molar pregnancy
       Oophoritis following ectopic and molar pregnancy
       Parametritis following ectopic and molar pregnancy
       Pelvic peritonitis following ectopic and molar pregnancy
       Salpingitis following ectopic and molar pregnancy
       Salpingo-oophoritis following ectopic and molar pregnancy
       Excludes1: sepsis following ectopic and molar pregnancy (O08.82)
          urinary tract infection (O08.83)
    O08.1 Delayed or excessive hemorrhage following ectopic and molar pregnancy
       Afibrinogenemia ​following ectopic and molar pregnancy
       Defibrination syndrome following ectopic and molar pregnancy
       Hemolysis following ectopic and molar pregnancy
       Intravascular coagulation following ectopic and molar pregnancy
       Excludes1: delayed or excessive hemorrhage due to incomplete abortion (O03.1)
    O08.2 Embolism following ectopic and molar pregnancy
       Air embolism following ectopic and molar pregnancy
       Amniotic fluid embolism following ectopic and molar pregnancy
       Blood-clot embolism following ectopic and molar pregnancy
       Embolism NOS following ectopic and molar pregnancy
       Fat embolism following ectopic and molar pregnancy
       Pulmonary embolism following ectopic and molar pregnancy
       Pyemic embolism following ectopic and molar pregnancy
       Septic or septicopyemic embolism following ectopic and molar pregnancy
       Soap embolism following ectopic and molar pregnancy
    O08.3 Shock following ectopic and molar pregnancy
       Circulatory collapse following ectopic and molar pregnancy
       Shock (postprocedural) following ectopic and molar pregnancy
       Excludes1: shock due to infection following ectopic and molar pregnancy (O08.82)
    O08.4 Renal failure following ectopic and molar pregnancy
       Kidney failure (acute) following ectopic and molar pregnancy
       Oliguria following ectopic and molar pregnancy
       Renal shutdown following ectopic and molar pregnancy
       Renal tubular necrosis following ectopic and molar pregnancy
       Uremia following ectopic and molar pregnancy
    O08.5 Metabolic disorders following an ectopic and molar pregnancy
    O08.6 Damage to pelvic organs and tissues following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of bladder following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of bowel following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of broad ligament following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of cervix following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of periurethral tissue following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of uterus following an ectopic and molar pregnancy
       Laceration, perforation, tear or chemical damage of vagina following an ectopic and molar pregnancy
    O08.7 Other venous complications following an ectopic and molar pregnancy
    O08. ​8 Other complications following an ectopic and molar pregnancy
       O08.81 Cardiac arrest following an ectopic and molar pregnancy
       O08.82 Sepsis following ectopic and molar pregnancy
          Use additional code (B95-B97), to identify infectious agent
          Use additional code (R65.2-) to identify severe sepsis, if applicable
          Excludes1: septic or septicopyemic embolism following ectopic and molar pregnancy (O08.2)
       O08.83 Urinary tract infection following an ectopic and molar pregnancy
          Cystitis following an ectopic and molar pregnancy
       O08.89 Other complications following an ectopic and molar pregnancy
    O08.9 Unspecified complication following an ectopic and molar pregnancy

## O09 Supervision of high risk pregnancyO09 Supervision of high risk pregnancy

    O09.0 Supervision of pregnancy with history of infertility
       O09.00 Supervision of pregnancy with history of infertility, unspecified trimester
       O09.01 Supervision of pregnancy with history of infertility, first trimester
       O09.02 Supervision of pregnancy with history of infertility, second trimester
       O09.03 Supervision of pregnancy with history of infertility, third trimester
    O09.1 Supervision of pregnancy with history of ectopic or molar pregnancy
       O09.10 Supervision of pregnancy with history of ectopic or molar pregnancy, unspecified trimester
       O09.11 Supervision of pregnancy with history of ectopic or molar pregnancy, first trimester
       O09.12 Supervision of pregnancy with history of ectopic or molar pregnancy, second trimester
       O09.13 Supervision of pregnancy with history of ectopic or molar pregnancy, third trimester
    O09.2 Supervision of pregnancy with other poor reproductive or obstetric history
       Excludes2: pregnancy care of habitual aborter (O26.2-)
       O09.21 Supervision of pregnancy with history of pre-term labor
          O09.211 Supervision of pregnancy with history of pre-term labor, first trimester
          O09.212 Supervision of pregnancy with history of pre-term labor, second trimester
          O09. ​213 Supervision of pregnancy with history of pre-term labor, third trimester
          O09.219 Supervision of pregnancy with history of pre-term labor, unspecified trimester
       O09.29 Supervision of pregnancy with other poor reproductive or obstetric history
          Supervision of pregnancy with history of neonatal death
          Supervision of pregnancy with history of stillbirth
          O09.291 Supervision of pregnancy with other poor reproductive or obstetric history, first trimester
          O09.292 Supervision of pregnancy with other poor reproductive or obstetric history, second trimester
          O09.293 Supervision of pregnancy with other poor reproductive or obstetric history, third trimester
          O09.299 Supervision of pregnancy with other poor reproductive or obstetric history, unspecified trimester
    O09.3 Supervision of pregnancy with insufficient antenatal care
       Supervision of concealed pregnancy
       Supervision of hidden pregnancy
       O09.30 Supervision of pregnancy with insufficient antenatal care, unspecified trimester
       O09.31 Supervision of pregnancy with insufficient antenatal care, first trimester
       O09.32 Supervision of pregnancy with insufficient antenatal care, second trimester
       O09.33 Supervision of pregnancy with insufficient antenatal care, third trimester
    O09.4 Supervision of pregnancy with grand multiparity
       O09.40 Supervision of pregnancy with grand multiparity, unspecified trimester
       O09.41 Supervision of pregnancy with grand multiparity, first trimester
       O09.42 Supervision of pregnancy with grand multiparity, second trimester
       O09.43 Supervision of pregnancy with grand multiparity, third trimester
    O09.5 Supervision of elderly primigravida and multigravida
       Pregnancy for a female 35 years and older at expected date of delivery
       O09.51 Supervision of elderly primigravida
          O09.511 Supervision of elderly primigravida, first trimester
          O09. ​512 Supervision of elderly primigravida, second trimester
          O09.513 Supervision of elderly primigravida, third trimester
          O09.519 Supervision of elderly primigravida, unspecified trimester
       O09.52 Supervision of elderly multigravida
          O09.521 Supervision of elderly multigravida, first trimester
          O09.522 Supervision of elderly multigravida, second trimester
          O09.523 Supervision of elderly multigravida, third trimester
          O09.529 Supervision of elderly multigravida, unspecified trimester
    O09.6 Supervision of young primigravida and multigravida
       Supervision of pregnancy for a female less than 16 years old at expected date of delivery
       O09.61 Supervision of young primigravida
          O09.611 Supervision of young primigravida, first trimester
          O09.612 Supervision of young primigravida, second trimester
          O09.613 Supervision of young primigravida, third trimester
          O09.619 Supervision of young primigravida, unspecified trimester
       O09.62 Supervision of young multigravida
          O09.621 Supervision of young multigravida, first trimester
          O09.622 Supervision of young multigravida, second trimester
          O09.623 Supervision of young multigravida, third trimester
          O09.629 Supervision of young multigravida, unspecified trimester
    O09.7 Supervision of high risk pregnancy due to social problems
       O09.70 Supervision of high risk pregnancy due to social problems, unspecified trimester
       O09.71 Supervision of high risk pregnancy due to social problems, first trimester
       O09.72 Supervision of high risk pregnancy due to social problems, second trimester
       O09.73 Supervision of high risk pregnancy due to social problems, third trimester
    O09.8 Supervision of other high risk pregnancies
       O09. ​81 Supervision of pregnancy resulting from assisted reproductive technology
          Supervision of pregnancy resulting from in-vitro fertilization
          O09.811 Supervision of pregnancy resulting from assisted reproductive technology, first trimester
          O09.812 Supervision of pregnancy resulting from assisted reproductive technology, second trimester
          O09.813 Supervision of pregnancy resulting from assisted reproductive technology, third trimester
          O09.819 Supervision of pregnancy resulting from assisted reproductive technology, unspecified trimester
       O09.82 Supervision of pregnancy with history of in utero procedure during previous pregnancy
          O09.821 Supervision of pregnancy with history of in utero procedure during previous pregnancy, first trimester
          O09.822 Supervision of pregnancy with history of in utero procedure during previous pregnancy, second trimester
          O09.823 Supervision of pregnancy with history of in utero procedure during previous pregnancy, third trimester
          O09.829 Supervision of pregnancy with history of in utero procedure during previous pregnancy, unspecified trimester
          Excludes1 supervision of pregnancy affected by in utero procedure during current pregnancy (O35.7)
       O09.89 Supervision of other high risk pregnancies
          O09.891 Supervision of other high risk pregnancies, first trimester
          O09.892 Supervision of other high risk pregnancies, second trimester
          O09.893 Supervision of other high risk pregnancies, third trimester
          O09.899 Supervision of other high risk pregnancies, unspecified trimester
    O09.9 Supervision of high risk pregnancy, unspecified
       O09.90 Supervision of high risk pregnancy, unspecified, unspecified trimester
       O09. ​91 Supervision of high risk pregnancy, unspecified, first trimester
       O09.92 Supervision of high risk pregnancy, unspecified, second trimester
       O09.93 Supervision of high risk pregnancy, unspecified, third trimester

# Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
## O10 Pre-existing hypertension complicating pregnancy, childbirth and the puerperiumO10 Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

    Includes: Pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium
    Excludes2 pre-existing hypertension with increased or superimposed proteinuria complicating pregnancy, childbirth and the puerperium (Oll.-)
    O10.0 Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
       Any condition in I10 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
       O10.01 Pre-existing essential hypertension complicating pregnancy,
          O10.011 Pre-existing essential hypertension complicating pregnancy, first trimester
          O10.012 Pre-existing essential hypertension complicating pregnancy, second trimester
          O10.013 Pre-existing essential hypertension complicating pregnancy, third trimester
          O10.019 Pre-existing essential hypertension complicating pregnancy, unspecified trimester
       O10.02 Pre-existing essential hypertension complicating childbirth
       O10.03 Pre-existing essential hypertension complicating the puerperium
    O10.1 Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium
       Any condition in I11 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
       Use additional code from I11 to identify the type of hypertensive heart disease
       O10.11 Pre-existing hypertensive heart disease complicating pregnancy
          O10.111 Pre-existing hypertensive heart disease complicating pregnancy, first trimester
          O10. ​112 Pre-existing hypertensive heart disease complicating pregnancy, second trimester
          O10.113 Pre-existing hypertensive heart disease complicating pregnancy, third trimester
          O10.119 Pre-existing hypertensive heart disease complicating pregnancy, unspecified trimester
       O10.12 Pre-existing hypertensive heart disease complicating childbirth
       O10.13 Pre-existing hypertensive heart disease complicating the puerperium
    O10.2 Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperium
       Any condition in I12 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
       Use additional code from I12 to identify the type of hypertensive chronic kidney disease
       O10.21 Pre-existing hypertensive chronic kidney disease complicating pregnancy
          O10.211 Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester
          O10.212 Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester
          O10.213 Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester
          O10.219 Pre-existing hypertensive chronic kidney disease complicating pregnancy, unspecified trimester
       O10.22 Pre-existing hypertensive chronic kidney disease complicating childbirth
       O10.23 Pre-existing hypertensive chronic kidney disease complicating the puerperium
    O10.3 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperium
       Any condition in I13 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
       Use additional code from I13 to identify the type of hypertensive heart and chronic kidney disease
       O10.31 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy
          O10.311 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester
          O10. ​312 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester
          O10.313 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester
          O10.319 Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, unspecified trimester
       O10.32 Pre-existing hypertensive heart and chronic kidney disease complicating childbirth
       O10.33 Pre-existing hypertensive heart and chronic kidney disease complicating the puerperium
    O10.4 Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
       Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
       Use additional code from I15 to identify the type of secondary hypertension
       O10.41 Pre-existing secondary hypertension complicating pregnancy
          O10.411 Pre-existing secondary hypertension complicating pregnancy, first trimester
          O10.412 Pre-existing secondary hypertension complicating pregnancy, second trimester
          O10.413 Pre-existing secondary hypertension complicating pregnancy, third trimester
          O10.419 Pre-existing secondary hypertension complicating pregnancy, unspecified trimester
       O10.42 Pre-existing secondary hypertension complicating childbirth
       O10.43 Pre-existing secondary hypertension complicating the puerperium
    O10.9 Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
       O10.91 Unspecified pre-existing hypertension complicating pregnancy
          O10.911 Unspecified pre-existing hypertension complicating pregnancy, first trimester
          O10.912 Unspecified pre-existing hypertension complicating pregnancy, second trimester
          O10.913 Unspecified pre-existing hypertension complicating pregnancy, third trimester
          O10. ​919 Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester
       O10.92 Unspecified pre-existing hypertension complicating childbirth
       O10.93 Unspecified pre-existing hypertension complicating the puerperium

## O11 Pre-existing hypertensive disorder with superimposed proteinuriaO11 Pre-existing hypertensive disorder with superimposed proteinuria

    Includes: Conditions in Ol0 complicated by increased proteinuria
       Superimposed pre-eclampsia
    Use additional code from O10 to identify the type of hypertension
    O11.1 Pre-existing hypertensive disorder with superimposed proteinuria, first trimester
    O11.2 Pre-existing hypertensive disorder with superimposed proteinuria, second trimester
    O11.3 Pre-existing hypertensive disorder with superimposed proteinuria, third trimester
    O11.9 Pre-existing hypertensive disorder with superimposed proteinuria, unspecified trimester

## O12 Gestational [pregnancy-induced] edema and proteinuria without hypertensionO12 Gestational [pregnancy-induced] edema and proteinuria without hypertension

    O12.0 Gestational edema
       O12.00 Gestational edema, unspecified trimester
       O12.01 Gestational edema, first trimester
       O12.02 Gestational edema, second trimester
       O12.03 Gestational edema, third trimester
    O12.1 Gestational proteinuria
       O12.10 Gestational proteinuria, unspecified trimester
       O12.11 Gestational proteinuria, first trimester
       O12.12 Gestational proteinuria, second trimester
       O12.13 Gestational proteinuria, third trimester
    O12.2 Gestational edema with proteinuria
       O12.20 Gestational edema with proteinuria, unspecified trimester
       O12.21 Gestational edema with proteinuria, first trimester
       O12.22 Gestational edema with proteinuria, second trimester
       O12.23 Gestational edema with proteinuria, third trimester

## O13 Gestational [pregnancy-induced] hypertension without significant proteinuriaO13 Gestational [pregnancy-induced] hypertension without significant proteinuria

    Includes: gestational hypertension NOS
    O13.1 Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester
    O13. ​2 Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester
    O13.3 Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester
    O13.9 Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester

## O14 Gestational [pregnancy-induced] hypertension with significant proteinuriaO14 Gestational [pregnancy-induced] hypertension with significant proteinuria

    Pre-eclampsia
    Excludes1: superimposed pre-eclampsia (O11)
    O14.0 Mild pre-eclampsia
       O14.00 Mild pre-eclampsia, unspecified trimester
       O14.02 Mild pre-eclampsia, second trimester
       O14.03 Mild pre-eclampsia, third trimester
    O14.1 Severe pre-eclampsia
       Excludes1: HELLP syndrome (O14.2-)
       O14.10 Severe pre-eclampsia, unspecified trimester
       O14.12 Severe pre-eclampsia, second trimester
       O14.13 Severe pre-eclampsia, third trimester
    O14.2 HELLP syndrome (HELLP)
       Severe pre-eclampsia with hemolysis, elevated liver enzymes and low platelet count
       O14.20 HELLP syndrome (HELLP), unspecified trimester
       O14.22 HELLP syndrome (HELLP), second trimester
       O14.23 HELLP syndrome (HELLP), third trimester
    O14.9 Unspecified pre-eclampsia
       O14.90 Unspecified pre-eclampsia, unspecified trimester
       O14.92 Unspecified pre-eclampsia, second trimester
       O14.93 Unspecified pre-eclampsia, third trimester

## O15 EclampsiaO15 Eclampsia

    Includes: convulsions following conditions in O10-O14 and O16
    O15.0 Eclampsia in pregnancy
       O15.00 Eclampsia in pregnancy, unspecified trimester
       O15.02 Eclampsia in pregnancy, second trimester
       O15.03 Eclampsia in pregnancy, third trimester
    O15.1 Eclampsia in labor
    O15.2 Eclampsia in the puerperium
    O15.9 Eclampsia, unspecified as to time period
       Eclampsia NOS

## O16 Unspecified maternal hypertensionO16 Unspecified maternal hypertension

    O16.1 Unspecified maternal hypertension, first trimester
    O16.2 Unspecified maternal hypertension, second trimester
    O16.3 Unspecified maternal hypertension, third trimester
    O16.9 Unspecified maternal hypertension, unspecified trimester

# Other ​maternal disorders predominantly related to pregnancy (O20-O29)

    Excludes2: maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
       maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

## O20 Hemorrhage in early pregnancyO20 Hemorrhage in early pregnancy

    Includes: before completion of 20 weeks gestation
    Excludes1: pregnancy with abortive outcome (O00-O08)
    O20.0 Threatened abortion
       Hemorrhage specified as due to threatened abortion
    O20.8 Other hemorrhage in early pregnancy
    O20.9 Hemorrhage in early pregnancy, unspecified

## O21 Excessive vomiting in pregnancyO21 Excessive vomiting in pregnancy

    O21.0 Mild hyperemesis gravidarum
       Hyperemesis gravidarum, mild or unspecified, starting before the end of the 20th week of gestation
    O21.1 Hyperemesis gravidarum with metabolic disturbance
       Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as carbohydrate depletion
       Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as dehydration
       Hyperemesis gravidarum, starting before the end of the 20th week of gestation, with metabolic disturbance such as electrolyte imbalance
    O21.2 Late vomiting of pregnancy
       Excessive vomiting starting after 20 completed weeks of gestation
    O21.8 Other vomiting complicating pregnancy
       Vomiting due to diseases classified elsewhere, complicating pregnancy
       Use additional code, to identify cause.
    O21.9 Vomiting of pregnancy, unspecified

## O22 Venous complications in pregnancyO22 Venous complications in pregnancy

    Excludes1: venous complications of:
       abortion NOS (O03.9)
       ectopic or molar pregnancy (O08.7)
       failed attempted abortion (O07.39, O07.89)
       induced abortion (O04.89, O05.89)
       spontaneous abortion (O03.89, O03.89)
    Excludes2: obstetric pulmonary embolism (O88.-)
       venous complications of childbirth and the puerperium (O87.-)
    O22.0 Varicose veins of lower extremity in pregnancy
       Varicose veins NOS in pregnancy
       O22.00 Varicose veins of lower extremity in pregnancy, unspecified trimester
       O22. ​01 Varicose veins of lower extremity in pregnancy, first trimester
       O22.02 Varicose veins of lower extremity in pregnancy, second trimester
       O22.03 Varicose veins of lower extremity in pregnancy, third trimester
    O22.1 Genital varices in pregnancy
       Perineal varices in pregnancy
       Vaginal varices in pregnancy
       Vulval varices in pregnancy
       O22.10 Genital varices in pregnancy, unspecified trimester
       O22.11 Genital varices in pregnancy, first trimester
       O22.12 Genital varices in pregnancy, second trimester
       O22.13 Genital varices in pregnancy, third trimester
    O22.2 Superficial thrombophlebitis in pregnancy
       Phlebitis in pregnancy NOS
       Thrombophlebitis of legs in pregnancy
       Thrombosis in pregnancy NOS
       O22.20 Superficial thrombophlebitis in pregnancy, unspecified trimester
       O22.21 Superficial thrombophlebitis in pregnancy, first trimester
       O22.22 Superficial thrombophlebitis in pregnancy, second trimester
       O22.23 Superficial thrombophlebitis in pregnancy, third trimester
    O22.3 Deep phlebothrombosis in pregnancy
       Deep vein thrombosis, antepartum
       Use additional code to identify the deep vein thrombosis (I82.4-, I82.5-, I82.62-. I82.72-)
       Use additional code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)
       O22.30 Deep phlebothrombosis in pregnancy, unspecified trimester
       O22.31 Deep phlebothrombosis in pregnancy, first trimester
       O22.32 Deep phlebothrombosis in pregnancy, second trimester
       O22.33 Deep phlebothrombosis in pregnancy, third trimester
    O22.4 Hemorrhoids in pregnancy
       O22.40 Hemorrhoids in pregnancy, unspecified trimester
       O22.41 Hemorrhoids in pregnancy, first trimester
       O22.42 Hemorrhoids in pregnancy, second trimester
       O22.43 Hemorrhoids in pregnancy, third trimester
    O22.5 Cerebral venous thrombosis in pregnancy
       Cerebrovenous sinus thrombosis in pregnancy
       O22. ​50 Cerebral venous thrombosis in pregnancy, unspecified trimester
       O22.51 Cerebral venous thrombosis in pregnancy, first trimester
       O22.52 Cerebral venous thrombosis in pregnancy, second trimester
       O22.53 Cerebral venous thrombosis in pregnancy, third trimester
    O22.8 Other venous complications in pregnancy
       O22.8x Other venous complications in pregnancy
          O22.8x1 Other venous complications in pregnancy, first trimester
          O22.8x2 Other venous complications in pregnancy, second trimester
          O22.8x3 Other venous complications in pregnancy, third trimester
          O22.8x9 Other venous complications in pregnancy, unspecified trimester
    O22.9 Venous complication in pregnancy, unspecified
       Gestational phlebitis NOS
       Gestational phlebopathy NOS
       Gestational thrombosis NOS
       O22.90 Venous complication in pregnancy, unspecified, unspecified trimester
       O22.91 Venous complication in pregnancy, unspecified, first trimester
       O22.92 Venous complication in pregnancy, unspecified, second trimester
       O22.93 Venous complication in pregnancy, unspecified, third trimester

## O23 Infections of genitourinary tract in pregnancyO23 Infections of genitourinary tract in pregnancy

    Use additional code to identify organism (B95.-, B96.-)
    O23.0 Infections of kidney in pregnancy
       Pyelonephritis in pregnancy
       O23.00 Infections of kidney in pregnancy, unspecified trimester
       O23.01 Infections of kidney in pregnancy, first trimester
       O23.02 Infections of kidney in pregnancy, second trimester
       O23.03 Infections of kidney in pregnancy, third trimester
    O23.1 Infections of bladder in pregnancy
       O23.10 Infections of bladder in pregnancy, unspecified trimester
       O23.11 Infections of bladder in pregnancy, first trimester
       O23.12 Infections of bladder in pregnancy, second trimester
       O23.13 Infections of bladder in pregnancy, third trimester
    O23.2 Infections of urethra in pregnancy
       O23. ​20 Infections of urethra in pregnancy, unspecified trimester
       O23.21 Infections of urethra in pregnancy, first trimester
       O23.22 Infections of urethra in pregnancy, second trimester
       O23.23 Infections of urethra in pregnancy, third trimester
    O23.3 Infections of other parts of urinary tract in pregnancy
       O23.30 Infections of other parts of urinary tract in pregnancy, unspecified trimester
       O23.31 Infections of other parts of urinary tract in pregnancy, first trimester
       O23.32 Infections of other parts of urinary tract in pregnancy, second trimester
       O23.33 Infections of other parts of urinary tract in pregnancy, third trimester
    O23.4 Unspecified infection of urinary tract in pregnancy
       O23.40 Unspecified infection of urinary tract in pregnancy, unspecified trimester
       O23.41 Unspecified infection of urinary tract in pregnancy, first trimester
       O23.42 Unspecified infection of urinary tract in pregnancy, second trimester
       O23.43 Unspecified infection of urinary tract in pregnancy, third trimester
    O23.5 Infections of the genital tract in pregnancy
       O23.51 Infection of cervix in pregnancy
          O23.511 Infections of cervix in pregnancy, first trimester
          O23.512 Infections of cervix in pregnancy, second trimester
          O23.513 Infections of cervix in pregnancy, third trimester
          O23.519 Infections of cervix in pregnancy, unspecified trimester
       O23.52 Salpingo-oophoritis in pregnancy
          Oophoritis in pregnancy
          Salpingitis in pregnancy
          O23.521 Salpingo-oophoritis in pregnancy, first trimester
          O23.522 Salpingo-oophoritis in pregnancy, second trimester
          O23.523 Salpingo-oophoritis in pregnancy, third trimester
          O23.529 Salpingo-oophoritis in pregnancy, unspecified trimester
       O23.59 Infection of other part of genital tract in pregnancy
          O23. ​591 Infection of other part of genital tract in pregnancy, first trimester
          O23.592 Infection of other part of genital tract in pregnancy, second trimester
          O23.593 Infection of other part of genital tract in pregnancy, third trimester
          O23.599 Infection of other part of genital tract in pregnancy, unspecified trimester
    O23.9 Unspecified genitourinary tract infection in pregnancy
       Genitourinary tract infection in pregnancy NOS
       O23.90 Unspecified genitourinary tract infection in pregnancy, unspecified trimester
       O23.91 Unspecified genitourinary tract infection in pregnancy, first trimester
       O23.92 Unspecified genitourinary tract infection in pregnancy, second trimester
       O23.93 Unspecified genitourinary tract infection in pregnancy, third trimester

## O24 Diabetes mellitus in pregnancy, childbirth, and the puerperiumO24 Diabetes mellitus in pregnancy, childbirth, and the puerperium

    O24.0 Pre-existing diabetes mellitus, type 1, in pregnancy, childbirth and the puerperium
       Juvenile onset diabetes mellitus, in pregnancy, childbirth and the puerperium
       Ketosis-prone diabetes mellitus in pregnancy, childbirth and the puerperium
       Use additional code from category E10 to further identify any manifestations
       O24.01 Pre-existing diabetes mellitus, type 1, in pregnancy
          O24.011 Pre-existing diabetes mellitus, type 1, in pregnancy, first trimester
          O24.012 Pre-existing diabetes mellitus, type 1, in pregnancy, second trimester
          O24.013 Pre-existing diabetes mellitus, type 1, in pregnancy, third trimester
          O24.019 Pre-existing diabetes mellitus, type 1, in pregnancy, unspecified trimester
       O24.02 Pre-existing diabetes mellitus, type 1, in childbirth
       O24.03 Pre-existing diabetes mellitus, type 1, in the puerperium
    O24.1 Pre-existing diabetes mellitus, type 2, in pregnancy, childbirth and the puerperium
       Insulin-resistant diabetes mellitus in pregnancy, childbirth and the puerperium
       Use additional code (for):
          from ​category E11 to further identify any manifestations
          long-term (current) use of insulin (Z79.4)
       O24.11 Pre-existing diabetes mellitus, type 2, in pregnancy
          O24.111 Pre-existing diabetes mellitus, type 2, in pregnancy, first trimester
          O24.112 Pre-existing diabetes mellitus, type 2, in pregnancy, second trimester
          O24.113 Pre-existing diabetes mellitus, type 2, in pregnancy, third trimester
          O24.119 Pre-existing diabetes mellitus, type 2, in pregnancy, unspecified trimester
       O24.12 Pre-existing diabetes mellitus, type 2, in childbirth
       O24.13 Pre-existing diabetes mellitus, type 2, in the puerperium
    O24.3 Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium
       Use additional code (for):
          from category E11 to further identify any manifestation
          long-term (current) use of insulin (Z79.4)
       O24.31 Unspecified pre-existing diabetes mellitus in pregnancy
          O24.311 Unspecified pre-existing diabetes mellitus in pregnancy, first trimester
          O24.312 Unspecified pre-existing diabetes mellitus in pregnancy, second trimester
          O24.313 Unspecified pre-existing diabetes mellitus in pregnancy, third trimester
          O24.319 Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester
       O24.32 Unspecified pre-existing diabetes mellitus in childbirth
       O24.33 Unspecified pre-existing diabetes mellitus in the puerperium
    O24.4 Gestational diabetes mellitus
       Diabetes mellitus arising in pregnancy
       Gestational diabetes mellitus NOS
       O24.41 Gestational diabetes mellitus in pregnancy
          O24.410 Gestational diabetes mellitus in pregnancy, diet-controlled
          O24.414 Gestational diabetes mellitus in pregnancy, insulin controlled
          O24.419 Gestational diabetes mellitus in pregnancy, unspecified control
       O24.42 Gestational diabetes mellitus in childbirth
          O24.420 Gestational diabetes mellitus in childbirth, diet controlled
          O24. ​424 Gestational diabetes mellitus in childbirth, insulin controlled
          O24.429 Gestational diabetes mellitus in childbirth, unspecified control
       O24.43 Gestational diabetes mellitus in the puerperium
          O24.430 Gestational diabetes mellitus in the puerperium, diet controlled
          O24.434 Gestational diabetes mellitus in the puerperium, insulin controlled
          O24.439 Gestational diabetes mellitus in the puerperium, unspecified control
    O24.8 Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperium
       Use additional code (for):
          from categories E08, E09 and E13 to further identify any manifestation
          long-term (current) use of insulin (Z79.4)
       O24.81 Other pre-existing diabetes mellitus in pregnancy
          O24.811 Other pre-existing diabetes mellitus in pregnancy, first trimester
          O24.812 Other pre-existing diabetes mellitus in pregnancy, second trimester
          O24.813 Other pre-existing diabetes mellitus in pregnancy, third trimester
          O24.819 Other pre-existing diabetes mellitus in pregnancy, unspecified trimester
       O24.82 Other pre-existing diabetes mellitus in childbirth
       O24.83 Other pre-existing diabetes mellitus in the puerperium
    O24.9 Unspecified diabetes mellitus in pregnancy, childbirth and the puerperium
       Use additional code for long-term (current) use of insulin (Z79.4)
       O24.91 Unspecified diabetes mellitus in pregnancy
          O24.911 Unspecified diabetes mellitus in pregnancy, first trimester
          O24.912 Unspecified diabetes mellitus in pregnancy, second trimester
          O24.913 Unspecified diabetes mellitus in pregnancy, third trimester
          O24.919 Unspecified diabetes mellitus in pregnancy, unspecified trimester
       O24.92 Unspecified diabetes mellitus in childbirth
       O24.93 Unspecified diabetes mellitus in the puerperium

## O25 Malnutrition in pregnancy, childbirth and the puerperiumO25 Malnutrition in pregnancy, childbirth and the puerperium

    O25.1 Malnutrition in pregnancy
       O25.10 Malnutrition in pregnancy, unspecified trimester
       O25. ​11 Malnutrition in pregnancy, first trimester
       O25.12 Malnutrition in pregnancy, second trimester
       O25.13 Malnutrition in pregnancy, third trimester
    O25.2 Malnutrition in childbirth
    O25.3 Malnutrition in the puerperium

## O26 Maternal care for other conditions predominantly related to pregnancyO26 Maternal care for other conditions predominantly related to pregnancy

    O26.0 Excessive weight gain in pregnancy
       Excludes2: gestational edema (O12.0, O12.2)
       O26.00 Excessive weight gain in pregnancy, unspecified trimester
       O26.01 Excessive weight gain in pregnancy, first trimester
       O26.02 Excessive weight gain in pregnancy, second trimester
       O26.03 Excessive weight gain in pregnancy, third trimester
    O26.1 Low weight gain in pregnancy
       O26.10 Low weight gain in pregnancy, unspecified trimester
       O26.11 Low weight gain in pregnancy, first trimester
       O26.12 Low weight gain in pregnancy, second trimester
       O26.13 Low weight gain in pregnancy, third trimester
    O26.2 Pregnancy care of habitual aborter
       O26.20 Pregnancy care of habitual aborter, unspecified trimester
       O26.21 Pregnancy care of habitual aborter, first trimester
       O26.22 Pregnancy care of habitual aborter, second trimester
       O26.23 Pregnancy care of habitual aborter, third trimester
    O26.3 Retained intrauterine contraceptive device in pregnancy
       O26.30 Retained intrauterine contraceptive device in pregnancy, unspecified trimester
       O26.31 Retained intrauterine contraceptive device in pregnancy, first trimester
       O26.32 Retained intrauterine contraceptive device in pregnancy, second trimester
       O26.33 Retained intrauterine contraceptive device in pregnancy, third trimester
    O26.4 Herpes gestationis
       O26.40 Herpes gestationis, unspecified trimester
       O26.41 Herpes gestationis, first trimester
       O26.42 Herpes gestationis, second trimester
       O26.43 Herpes gestationis, third trimester
    O26.5 Maternal hypotension syndrome
       Supine hypotensive syndrome
       O26.50 Maternal hypotension syndrome, unspecified trimester
       O26.51 Maternal hypotension syndrome, first trimester
       O26.52 Maternal hypotension syndrome, second trimester
       O26.53 Maternal hypotension syndrome, third trimester
    O26. ​6 Liver disorders in pregnancy, childbirth and the puerperium
       Use additional code to identify the specific disorder
       Excludes2: hepatorenal syndrome following labor and delivery (O90.4)
       O26.61 Liver disorders in pregnancy
          O26.611 Liver disorders in pregnancy, first trimester
          O26.612 Liver disorders in pregnancy, second trimester
          O26.613 Liver disorders in pregnancy, third trimester
          O26.619 Liver disorders in pregnancy, unspecified trimester
       O26.62 Liver disorders in childbirth
       O26.63 Liver disorders in the puerperium
    O26.7 Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium
       Excludes1: traumatic separation of symphysis (pubis) during childbirth (O71.6)
       O26.71 Subluxation of symphysis (pubis) in pregnancy
          O26.711 Subluxation of symphysis (pubis) in pregnancy, first trimester
          O26.712 Subluxation of symphysis (pubis) in pregnancy, second trimester
          O26.713 Subluxation of symphysis (pubis) in pregnancy, third trimester
          O26.719 Subluxation of symphysis (pubis) in pregnancy, unspecified trimester
       O26.72 Subluxation of symphysis (pubis) in childbirth
       O26.73 Subluxation of symphysis (pubis) in the puerperium
    O26.8 Other specified pregnancy related conditions
       O26.81 Pregnancy related exhaustion and fatigue
          O26.811 Pregnancy related exhaustion and fatigue, first trimester
          O26.812 Pregnancy related exhaustion and fatigue, second trimester
          O26.813 Pregnancy related exhaustion and fatigue, third trimester
          O26.819 Pregnancy related exhaustion and fatigue, unspecified trimester
       O26.82 Pregnancy related peripheral neuritis
          O26.821 Pregnancy related peripheral neuritis, first trimester
          O26.822 Pregnancy related peripheral neuritis, second trimester
          O26.823 Pregnancy related peripheral neuritis, third trimester
          O26. ​829 Pregnancy related peripheral neuritis, unspecified trimester
       O26.83 Pregnancy related renal disease
          Use additional code to identify the specific disorder
          O26.831 Pregnancy related renal disease, first trimester
          O26.832 Pregnancy related renal disease, second trimester
          O26.833 Pregnancy related renal disease, third trimester
          O26.839 Pregnancy related renal disease, unspecified trimester
       O26.84 Uterine size-date discrepancy complicating pregnancy
          Excludes1: encounter for suspected problem with fetal growth ruled out (Z03.74)
          O26.841 Uterine size-date discrepancy, first trimester
          O26.842 Uterine size-date discrepancy, second trimester
          O26.843 Uterine size-date discrepancy, third trimester
          O26.849 Uterine size-date discrepancy, unspecified trimester
       O26.85 Spotting complicating pregnancy
          O26.851 Spotting complicating pregnancy, first trimester
          O26.852 Spotting complicating pregnancy, second trimester
          O26.853 Spotting complicating pregnancy, third trimester
          O26.859 Spotting complicating pregnancy, unspecified trimester
       O26.86 Pruritic urticarial papules and plaques of pregnancy (PUPPP)
          Polymorphic eruption of pregnancy
       O26.87 Cervical shortening
          Excludes1: encounter for suspected cervical shortening ruled out (Z03.75)
          O26.872 Cervical shortening, second trimester
          O26.873 Cervical shortening, third trimester
          O26.879 Cervical shortening, unspecified trimester
       O26.89 Other specified pregnancy related conditions
          O26.891 Other specified pregnancy related conditions, first trimester
          O26. ​892 Other specified pregnancy related conditions, second trimester
          O26.893 Other specified pregnancy related conditions, third trimester
          O26.899 Other specified pregnancy related conditions, unspecified trimester
    O26.9 Pregnancy related conditions, unspecified
       O26.90 Pregnancy related conditions, unspecified, unspecified trimester
       O26.91 Pregnancy related conditions, unspecified, first trimester
       O26.92 Pregnancy related conditions, unspecified, second trimester
       O26.93 Pregnancy related conditions, unspecified, third trimester

## O28 Abnormal findings on antenatal screening of motherO28 Abnormal findings on antenatal screening of mother

    Excludes1: diagnostic findings classified elsewhere - see Alphabetical Index
    O28.0 Abnormal hematological finding on antenatal screening of mother
    O28.1 Abnormal biochemical finding on antenatal screening of mother
    O28.2 Abnormal cytological finding on antenatal screening of mother
    O28.3 Abnormal ultrasonic finding on antenatal screening of mother
    O28.4 Abnormal radiological finding on antenatal screening of mother
    O28.5 Abnormal chromosomal and genetic finding on antenatal screening of mother
    O28.8 Other abnormal findings on antenatal screening of mother
    O28.9 Unspecified abnormal findings on antenatal screening of mother

## O29 Complications of anesthesia during pregnancyO29 Complications of anesthesia during pregnancy

    Includes: maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during pregnancy
    Use additional code, if necessary, to identify the complication
    Excludes2: complications of anesthesia during labor and delivery (O74.-)
       complications of anesthesia during the puerperium (O89.-)
    O29.0 Pulmonary complications of anesthesia during pregnancy
       O29.01 Aspiration pneumonitis due to anesthesia during pregnancy
          Inhalation of stomach contents or secretions NOS due to anesthesia during pregnancy
          Mendelson?s syndrome due to anesthesia during pregnancy
          O29.011 Aspiration pneumonitis due to anesthesia during pregnancy, first trimester
          O29. ​012 Aspiration pneumonitis due to anesthesia during pregnancy, second trimester
          O29.013 Aspiration pneumonitis due to anesthesia during pregnancy, third trimester
          O29.019 Aspiration pneumonitis due to anesthesia during pregnancy, unspecified trimester
       O29.02 Pressure collapse of lung due to anesthesia during pregnancy
          O29.021 Pressure collapse of lung due to anesthesia during pregnancy, first trimester
          O29.022 Pressure collapse of lung due to anesthesia during pregnancy, second triemester
          O29.023 Pressure collapse of lung due to anesthesia during pregnancy, third trimester
          O29.029 Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester
       O29.09 Other pulmonary complications of anesthesia during pregnancy
          O29.091 Other pulmonary complications of anesthesia during pregnancy, first trimester
          O29.092 Other pulmonary complications of anesthesia during pregnancy, second trimester
          O29.093 Other pulmonary complications of anesthesia during pregnancy, third trimester
          O29.099 Other pulmonary complications of anesthesia during pregnancy, unspecified trimester
    O29.1 Cardiac complications of anesthesia during pregnancy
       O29.11 Cardiac arrest due to anesthesia during pregnancy
          O29.111 Cardiac arrest due to anesthesia during pregnancy, first trimester
          O29.112 Cardiac arrest due to anesthesia during pregnancy, second trimester
          O29.113 Cardiac arrest due to anesthesia during pregnancy, third trimester
          O29.119 Cardiac arrest due to anesthesia during pregnancy, unspecified trimester
       O29.12 Cardiac failure due to anesthesia during pregnancy
          O29.121 Cardiac failure due to anesthesia during pregnancy, first trimester
          O29.122 Cardiac failure due to anesthesia during pregnancy, second trimester
          O29. ​123 Cardiac failure due to anesthesia during pregnancy, third trimester
          O29.129 Cardiac failure due to anesthesia during pregnancy, unspecified trimester
       O29.19 Other cardiac complications of anesthesia during pregnancy
          O29.191 Other cardiac complications of anesthesia during pregnancy, first trimester
          O29.192 Other cardiac complications of anesthesia during pregnancy, second trimester
          O29.193 Other cardiac complications of anesthesia during pregnancy, third trimester
          O29.199 Other cardiac complications of anesthesia during pregnancy, unspecified trimester
    O29.2 Central nervous system complications of anesthesia during pregnancy
       O29.21 Cerebral anoxia due to anesthesia during pregnancy
          O29.211 Cerebral anoxia due to anesthesia during pregnancy, first trimester
          O29.212 Cerebral anoxia due to anesthesia during pregnancy, second trimester
          O29.213 Cerebral anoxia due to anesthesia during pregnancy, third trimester
          O29.219 Cerebral anoxia due to anesthesia during pregnancy, unspecified trimester
       O29.29 Other central nervous system complications of anesthesia during pregnancy
          O29.291 Other central nervous system complications of anesthesia during pregnancy, first trimester
          O29.292 Other central nervous system complications of anesthesia during pregnancy, second trimester
          O29.293 Other central nervous system complications of anesthesia during pregnancy, third trimester
          O29.299 Other central nervous system complications of anesthesia during pregnancy, unspecified trimester
    O29.3 Toxic reaction to local anesthesia during pregnancy
       O29.3x Toxic reaction to local anesthesia during pregnancy
          O29.3x1 Toxic reaction to local anesthesia during pregnancy, first trimester
          O29. ​3x2 Toxic reaction to local anesthesia during pregnancy, second trimester
          O29.3x3 Toxic reaction to local anesthesia during pregnancy, third trimester
          O29.3x9 Toxic reaction to local anesthesia during pregnancy, unspecified trimester
    O29.4 Spinal and epidural anesthesia induced headache during pregnancy
       O29.40 Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester
       O29.41 Spinal and epidural anesthesia induced headache during pregnancy, first trimester
       O29.42 Spinal and epidural anesthesia induced headache during pregnancy, second trimester
       O29.43 Spinal and epidural anesthesia induced headache during pregnancy, third trimester
    O29.5 Other complications of spinal and epidural anesthesia during pregnancy
       O29.5x Other complications of spinal and epidural anesthesia during pregnancy
          O29.5x1 Other complications of spinal and epidural anesthesia during pregnancy, first trimester
          O29.5x2 Other complications of spinal and epidural anesthesia during pregnancy, second trimester
          O29.5x3 Other complications of spinal and epidural anesthesia during pregnancy, third trimester
          O29.5x9 Other complications of spinal and epidural anesthesia during pregnancy, unspecified trimester
    O29.6 Failed or difficult intubation for anesthesia during pregnancy
       O29.60 Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester
       O29.61 Failed or difficult intubation for anesthesia during pregnancy, first trimester
       O29.62 Failed or difficult intubation for anesthesia during pregnancy, second trimester
       O29.63 Failed or difficult intubation for anesthesia during pregnancy, third trimester
    O29.8 Other complications of anesthesia during pregnancy
       O29.8x Other complications of anesthesia during pregnancy
          O29.8x1 Other complications of anesthesia during pregnancy, first trimester
          O29. ​8x2 Other complications of anesthesia during pregnancy, second trimester
          O29.8x3 Other complications of anesthesia during pregnancy, third trimester
          O29.8x9 Other complications of anesthesia during pregnancy, unspecified trimester
    O29.9 Unspecified complication of anesthesia during pregnancy
       O29.90 Unspecified complication of anesthesia during pregnancy, unspecified trimester
       O29.91 Unspecified complication of anesthesia during pregnancy, first trimester
       O29.92 Unspecified complication of anesthesia during pregnancy, second trimester
       O29.93 Unspecified complication of anesthesia during pregnancy, third trimester

# Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
## O30 Multiple gestationO30 Multiple gestation

    Code also any complications specific to multiple gestation
    O30.0 Twin pregnancy
       O30.00 Twin pregnancy, unspecified
          O30.001 Twin pregnancy, unspecified, first trimester
          O30.002 Twin pregnancy, unspecified, second trimester
          O30.003 Twin pregnancy, unspecified, third trimester
          O30.009 Twin pregnancy, unspecified, unspecified trimester
       O30.01 Twin pregnancy, monoamniotic/monochorionic
          O30.011 Twin pregnancy, monoamniotic/monochorionic, first trimester
          O30.012 Twin pregnancy, monoamniotic/monochorionic, second trimester
          O30.013 Twin pregnancy, monoamniotic/monochorionic, third trimester
          O30.019 Twin pregnancy, monoamniotic/monochorionic, unspecified trimester
       O30.02 Conjoined twins
          O30. ​021 Conjoined twins, first trimester
          O30.022 Conjoined twins, second trimester
          O30.023 Conjoined twins, third trimester
          O30.029 Conjoined twins, unspecified trimester
       O30.09 Other twin pregnancy
          O30.091 Other twin pregnancy, first trimester
          O30.092 Other twin pregnancy, second trimester
          O30.093 Other twin pregnancy, third trimester
          O30.099 Other twin pregnancy, unspecified trimester
    O30.1 Triplet pregnancy
       O30.10 Triplet pregnancy, unspecified trimester
       O30.11 Triplet pregnancy, first trimester
       O30.12 Triplet pregnancy, second trimester
       O30.13 Triplet pregnancy, third trimester
    O30.2 Quadruplet pregnancy
       O30.20 Quadruplet pregnancy, unspecified trimester
       O30.21 Quadruplet pregnancy, first trimester
       O30.22 Quadruplet pregnancy, second trimester
       O30.23 Quadruplet pregnancy, third trimester
    O30.8 Other multiple gestation
       O30.80 Other multiple gestation, unspecified trimester
       O30.81 Other multiple gestation, first trimester
       O30.82 Other multiple gestation, second trimester
       O30.83 Other multiple gestation, third trimester
    O30.9 Multiple gestation, unspecified
       Multiple pregnancy NOS
       O30.90 Multiple gestation, unspecified, unspecified trimester
       O30.91 Multiple gestation, unspecified, first trimester
       O30.92 Multiple gestation, unspecified, second trimester
       O30.93 Multiple gestation, unspecified, third trimester

## O31 Complications specific to multiple gestationO31 Complications specific to multiple gestation

    Excludes2: delayed delivery of second twin, triplet, etc. (O63.2)
       malpresentation of one fetus or more (O32.5)
       placental transfusion syndromes (O43.0-)
    One of the following 7th characters is to be assigned to each code under category O31. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O31 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 ​fetus 5
       9 other fetus
    O31.0 Papyraceous fetus
       Fetus compressus
       O31.00 Papyraceous fetus, unspecified trimester
       O31.01 Papyraceous fetus, first trimester
       O31.02 Papyraceous fetus, second trimester
       O31.03 Papyraceous fetus, third trimester
    O31.1 Continuing pregnancy after spontaneous abortion of one fetus or more
       O31.10 Continuing pregnancy after spontaneous abortion of one fetus or more, unspecified trimester
       O31.11 Continuing pregnancy after spontaneous abortion of one fetus or more, first trimester
       O31.12 Continuing pregnancy after spontaneous abortion of one fetus or more, second trimester
       O31.13 Continuing pregnancy after spontaneous abortion of one fetus or more, third trimester
    O31.2 Continuing pregnancy after intrauterine death of one fetus or more
       O31.20 Continuing pregnancy after intrauterine death of one fetus or more, unspecified trimester
       O31.21 Continuing pregnancy after intrauterine death of one fetus or more, first trimester
       O31.22 Continuing pregnancy after intrauterine death of one fetus or more, second trimester
       O31.23 Continuing pregnancy after intrauterine death of one fetus or more, third trimester
    O31.3 Continuing pregnancy after elective fetal reduction of one fetus or more
       Continuing pregnancy after selective termination of one fetus or more
       O31.30 Continuing pregnancy after elective fetal reduction of one fetus or more, unspecified trimester
       O31.31 Continuing pregnancy after elective fetal reduction of one fetus or more, first trimester
       O31.32 Continuing pregnancy after elective fetal reduction of one fetus or more, second trimester
       O31.33 Continuing pregnancy after elective fetal reduction of one fetus or more, third trimester
    O31.8 Other complications specific to multiple gestation
       O31.8x Other complications specific to multiple gestation
          O31.8x1 Other complications specific to multiple gestation, first trimester
          O31.8x2 Other complications specific to multiple gestation, second trimester
          O31. ​8x3 Other complications specific to multiple gestation, third trimester
          O31.8x9 Other complications specific to multiple gestation, unspecified trimester

## O32 Maternal care for malpresentation of fetusO32 Maternal care for malpresentation of fetus

    Includes: the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
    Excludes1: malpresentation of fetus with obstructed labor (O64.-)
    One of the following 7th characters is to be assigned to each code under category O32. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O32 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O32.0 Maternal care for unstable lie
    O32.1 Maternal care for breech presentation
       Maternal care for buttocks presentation
       Maternal care for complete breech
       Maternal care for frank breech
       Excludes1: footling presentation (O32.8)
          incomplete breech (O32.8)
    O32.2 Maternal care for transverse and oblique lie
       Maternal care for oblique presentation
       Maternal care for transverse presentation
    O32.3 Maternal care for face, brow and chin presentation
    O32.4 Maternal care for high head at term
       Maternal care for failure of head to enter pelvic brim
    O32.6 Maternal care for compound presentation
    O32.8 Maternal care for other malpresentation of fetus
       Maternal care for footling presentation
       Maternal care for incomplete breech
    O32.9 Maternal care for malpresentation of fetus, unspecified

## O33 Maternal care for disproportionO33 Maternal care for disproportion

    Includes: the listed conditions as a reason for observation, hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
    Excludes1: ​disproportion with obstructed labor (O65- O66)
    O33.0 Maternal care for disproportion due to deformity of maternal pelvic bones
       Maternal care for disproportion due to pelvic deformity causing disproportion NOS
    O33.1 Maternal care for disproportion due to generally contracted pelvis
       Maternal care for disproportion due to contracted pelvis NOS causing disproportion
    O33.2 Maternal care for disproportion due to inlet contraction of pelvis
       Maternal care for disproportion due to inlet contraction (pelvis) causing disproportion
    O33.3 Maternal care for disproportion due to outlet contraction of pelvis
       Maternal care for disproportion due to mid-cavity contraction (pelvis)
       Maternal care for disproportion due to outlet contraction (pelvis)
    One of the following 7th characters is to be assigned to code O33.4. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.4 with a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O33.4 Maternal care for disproportion of mixed maternal and fetal origin
    One of the following 7th characters is to be assigned to code O33.5. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.5 with a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 ​other fetus
    O33.5 Maternal care for disproportion due to unusually large fetus
       Maternal care for disproportion due to disproportion of fetal origin with normally formed fetus
       Maternal care for disproportion due to fetal disproportion NOS
    One of the following 7th characters is to be assigned to code O33.6. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.6 with a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O33.6 Maternal care for disproportion due to hydrocephalic fetus
    One of the following 7th characters is to be assigned to code O33.7. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning code O33.7 with a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O33.7 Maternal care for disproportion due to other fetal deformities
       Maternal care for disproportion due to fetal ascites
       Maternal care for disproportion due to fetal hydrops
       Maternal care for disproportion due to fetal meningomyelocele
       Maternal care for disproportion due to fetal sacral teratoma
       Maternal care for disproportion due to fetal tumor
       Excludes1: obstructed labor due to other fetal deformities (O66.3)
    O33.8 Maternal care for disproportion of other origin
    O33.9 Maternal care for disproportion, unspecified
       Maternal care for disproportion due to cephalopelvic disproportion NOS
       Maternal care for disproportion due to fetopelvic disproportion NOS

## O34 Maternal care for abnormality of pelvic organsO34 Maternal care for abnormality of pelvic organs

    Includes: ​the listed conditions as a reason for hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor
    Code first any associated obstructed labor (O65.5)
    Use additional code for specific condition
    O34.0 Maternal care for congenital malformation of uterus
       O34.00 Maternal care for unspecified congenital malformation of uterus, unspecified trimester
       O34.01 Maternal care for unspecified congenital malformation of uterus, first trimester
       O34.02 Maternal care for unspecified congenital malformation of uterus, second trimester
       O34.03 Maternal care for unspecified congenital malformation of uterus, third trimester
    O34.1 Maternal care for benign tumor of corpus uteri
       Excludes2: maternal care for benign tumor of cervix (O34.4-)
          maternal care for malignant neoplasm of uterus (O94.11-)
       O34.10 Maternal care for benign tumor of corpus uteri, unspecified trimester
       O34.11 Maternal care for benign tumor of corpus uteri, first trimester
       O34.12 Maternal care for benign tumor of corpus uteri, second trimester
       O34.13 Maternal care for benign tumor of corpus uteri, third trimester
    O34.2 Maternal care due to uterine scar from previous surgery
       O34.21 Maternal care for scar from previous cesarean delivery
       O34.29 Maternal care due to uterine scar from other previous surgery
    O34.3 Maternal care for cervical incompetence
       Maternal care for cerclage with or without cervical incompetence
       Maternal care for Shirodkar suture with or without cervical incompetence
       O34.30 Maternal care for cervical incompetence, unspecified trimester
       O34.31 Maternal care for cervical incompetence, first trimester
       O34.32 Maternal care for cervical incompetence, second trimester
       O34.33 Maternal care for cervical incompetence, third trimester
    O34.4 Maternal care for other abnormalities of cervix
       O34.40 Maternal care for other abnormalities of cervix, unspecified trimester
       O34.41 Maternal care for other abnormalities of cervix, first trimester
       O34.42 Maternal care for other abnormalities of cervix, second trimester
       O34. ​43 Maternal care for other abnormalities of cervix, third trimester
    O34.5 Maternal care for other abnormalities of gravid uterus
       O34.51 Maternal care for incarceration of gravid uterus
          O34.511 Maternal care for incarceration of gravid uterus, first trimester
          O34.512 Maternal care for incarceration of gravid uterus, second trimester
          O34.513 Maternal care for incarceration of gravid uterus, third trimester
          O34.519 Maternal care for incarceration of gravid uterus, unspecified trimester
       O34.52 Maternal care for prolapse of gravid uterus
          O34.521 Maternal care for prolapse of gravid uterus, first trimester
          O34.522 Maternal care for prolapse of gravid uterus, second trimester
          O34.523 Maternal care for prolapse of gravid uterus, third trimester
          O34.529 Maternal care for prolapse of gravid uterus, unspecified trimester
       O34.53 Maternal care for retroversion of gravid uterus
          O34.531 Maternal care for retroversion of gravid uterus, first trimester
          O34.532 Maternal care for retroversion of gravid uterus, second trimester
          O34.533 Maternal care for retroversion of gravid uterus, third trimester
          O34.539 Maternal care for retroversion of gravid uterus, unspecified trimester
       O34.59 Maternal care for other abnormalities of gravid uterus
          O34.591 Maternal care for other abnormalities of gravid uterus, first trimester
          O34.592 Maternal care for other abnormalities of gravid uterus, second trimester
          O34.593 Maternal care for other abnormalities of gravid uterus, third trimester
          O34.599 Maternal care for other abnormalities of gravid uterus, unspecified trimester
    O34.6 Maternal care for abnormality of vagina
       Excludes2: maternal care for vaginal varices in pregnancy (O22.1-)
       O34.60 Maternal care for abnormality of vagina, unspecified trimester
       O34.61 Maternal care for abnormality of vagina, first trimester ​
       O34.62 Maternal care for abnormality of vagina, second trimester
       O34.63 Maternal care for abnormality of vagina, third trimester
    O34.7 Maternal care for abnormality of vulva and perineum
       Excludes2: maternal care for perineal and vulval varices in pregnancy (O22.1-)
       O34.70 Maternal care for abnormality of vulva and perineum, unspecified trimester
       O34.71 Maternal care for abnormality of vulva and perineum, first trimester
       O34.72 Maternal care for abnormality of vulva and perineum, second trimester
       O34.73 Maternal care for abnormality of vulva and perineum, third trimester
    O34.8 Maternal care for other abnormalities of pelvic organs
       O34.80 Maternal care for other abnormalities of pelvic organs, unspecified trimester
       O34.81 Maternal care for other abnormalities of pelvic organs, first trimester
       O34.82 Maternal care for other abnormalities of pelvic organs, second trimester
       O34.83 Maternal care for other abnormalities of pelvic organs, third trimester
    O34.9 Maternal care for abnormality of pelvic organ, unspecified
       O34.90 Maternal care for abnormality of pelvic organ, unspecified, unspecified trimester
       O34.91 Maternal care for abnormality of pelvic organ, unspecified, first trimester
       O34.92 Maternal care for abnormality of pelvic organ, unspecified, second trimester
       O34.93 Maternal care for abnormality of pelvic organ, unspecified, third trimester

## O35 Maternal care for known or suspected fetal abnormality and damageO35 Maternal care for known or suspected fetal abnormality and damage

    Includes: the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy
    Code also any associated maternal condition
    Excludes1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
    One of the following 7th characters is to be assigned to each code under category O35. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be ​assigned when assigning a code from category O35 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O35.0 Maternal care for (suspected) central nervous system malformation in fetus
       Maternal care for fetal anencephaly
       Maternal care for fetal hydrocephalus
       Maternal care for fetal spina bifida
       Excludes2: chromosomal abnormality in fetus (O35.1)
    O35.1 Maternal care for (suspected) chromosomal abnormality in fetus
    O35.2 Maternal care for (suspected) hereditary disease in fetus
       Excludes2: chromosomal abnormality in fetus (O35.1)
    O35.3 Maternal care for (suspected) damage to fetus from viral disease in mother
       Maternal care for damage to fetus from maternal cytomegalovirus infection
       Maternal care for damage to fetus from maternal rubella
    O35.4 Maternal care for (suspected) damage to fetus from alcohol
    O35.5 Maternal care for (suspected) damage to fetus by drugs
       Maternal care for damage to fetus from drug addiction
    O35.6 Maternal care for (suspected) damage to fetus by radiation
    O35.7 Maternal care for (suspected) damage to fetus by other medical procedures
       Maternal care for damage to fetus by amniocentesis
       Maternal care for damage to fetus by biopsy procedures
       Maternal care for damage to fetus by hematological investigation
       Maternal care for damage to fetus by intrauterine contraceptive device
       Maternal care for damage to fetus by intrauterine surgery
    O35.8 Maternal care for other (suspected) fetal abnormality and damage
       Maternal care for damage to fetus from maternal listeriosis
       Maternal care for damage to fetus from maternal toxoplasmosis
    O35.9 Maternal care for (suspected) fetal abnormality and damage, unspecified

## O36 Maternal care for other fetal problemsO36 Maternal care for other fetal problems

    Includes: the listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy
    Excludes1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
       placental ​transfusion syndromes (O43.0-)
    Excludes2: labor and delivery complicated by fetal stress (O77.-)
    One of the following 7th characters is to be assigned to each code under category O36. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O36 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O36.0 Maternal care for rhesus isoimmunization
       Maternal care for Rh incompatibility (with hydrops fetalis)
       O36.01 Maternal care for anti-D [Rh] antibodies
          O36.011 Maternal care for anti-D [Rh] antibodies, first trimester
          O36.012 Maternal care for anti-D [Rh] antibodies, second trimester
          O36.013 Maternal care for anti-D [Rh] antibodies, third trimester
          O36.019 Maternal care for anti-D [Rh] antibodies, unspecified trimester
       O36.09 Maternal care for other rhesus isoimmunization
          O36.091 Maternal care for other rhesus isoimmunization, first trimester
          O36.092 Maternal care for other rhesus isoimmunization, second trimester
          O36.093 Maternal care for other rhesus isoimmunization, third trimester
          O36.099 Maternal care for other rhesus isoimmunization, unspecified trimester
    O36.1 Maternal care for other isoimmunization
       Maternal care for ABO isoimmunization
       O36.11 Maternal care for Anti-A sensitization
          Maternal care for isoimmunization NOS (with hydrops fetalis)
          O36.111 Maternal care for Anti-A sensitization, first trimester
          O36.112 Maternal care for Anti-A sensitization, second trimester
          O36.113 Maternal care for Anti-A sensitization, third trimester
          O36. ​119 Maternal care for Anti-A sensitization, unspecified trimester
       O36.19 Maternal care for other isoimmunization
          Maternal care for Anti-B sensitization
          O36.191 Maternal care for other isoimmunization, first trimester
          O36.192 Maternal care for other isoimmunization, second trimester
          O36.193 Maternal care for other isoimmunization, third trimester
          O36.199 Maternal care for other isoimmunization, unspecified trimester
    O36.2 Maternal care for hydrops fetalis
       Maternal care for hydrops fetalis NOS
       Maternal care for hydrops fetalis not associated with isoimmunization
       Excludes1: hydrops fetalis associated with ABO isoimmunization (O36.1-)
          hydrops fetalis associated with rhesus isoimmunization (O36.0-)
       O36.20 Maternal care for hydrops fetalis, unspecified trimester
       O36.21 Maternal care for hydrops fetalis, first trimester
       O36.22 Maternal care for hydrops fetalis, second trimester
       O36.23 Maternal care for hydrops fetalis, third trimester
    O36.4 Maternal care for intrauterine death
       Maternal care for intrauterine fetal death NOS
       Maternal care for intrauterine fetal death after completion of 20 weeks of gestation
       Maternal care for late fetal death
       Maternal care for missed delivery
       Excludes1: missed abortion (O02.1)
          stillbirth (P95)
    O36.5 Maternal care for known or suspected poor fetal growth
       O36.51 Maternal care for known or suspected placental insufficiency
          O36.511 Maternal care for known or suspected placental insufficiency, first trimester
          O36.512 Maternal care for known or suspected placental insufficiency, second trimester
          O36.513 Maternal care for known or suspected placental insufficiency, third trimester
          O36.519 Maternal care for known or suspected placental insufficiency, unspecified trimester
       O36.59 Maternal care for other known or suspected poor fetal growth
          Maternal care for known or suspected light-for-dates NOS
          Maternal ​care for known or suspected small-for-dates NOS
          O36.591 Maternal care for other known or suspected poor fetal growth, first trimester
          O36.592 Maternal care for other known or suspected poor fetal growth, second trimester
          O36.593 Maternal care for other known or suspected poor fetal growth, third trimester
          O36.599 Maternal care for other known or suspected poor fetal growth, unspecified trimester
    O36.6 Maternal care for excessive fetal growth
       Maternal care for known or suspected large-for-dates
       O36.60 Maternal care for excessive fetal growth, unspecified trimester
       O36.61 Maternal care for excessive fetal growth, first trimester
       O36.62 Maternal care for excessive fetal growth, second trimester
       O36.63 Maternal care for excessive fetal growth, third trimester
    O36.7 Maternal care for viable fetus in abdominal pregnancy
       O36.70 Maternal care for viable fetus in abdominal pregnancy, unspecified trimester
       O36.71 Maternal care for viable fetus in abdominal pregnancy, first trimester
       O36.72 Maternal care for viable fetus in abdominal pregnancy, second trimester
       O36.73 Maternal care for viable fetus in abdominal pregnancy, third trimester
    O36.8 Maternal care for other specified fetal problems
       O36.81 Decreased fetal movements
          O36.812 Decreased fetal movements, second trimester
          O36.813 Decreased fetal movements, third trimester
          O36.819 Decreased fetal movements, unspecified trimester
       O36.82 Fetal anemia and thrombocytopenia
          O36.821 Fetal anemia and thrombocytopenia, first trimester
          O36.822 Fetal anemia and thrombocytopenia, second trimester
          O36.823 Fetal anemia and thrombocytopenia, third trimester
          O36.829 Fetal anemia and thrombocytopenia, unspecified trimester
       O36.89 Maternal care for other specified fetal problems
          O36. ​891 Maternal care for other specified fetal problems, first trimester
          O36.892 Maternal care for other specified fetal problems, second trimester
          O36.893 Maternal care for other specified fetal problems, third trimester
          O36.899 Maternal care for other specified fetal problems, unspecified trimester
    O36.9 Maternal care for fetal problem, unspecified
       O36.90 Maternal care for fetal problem, unspecified, unspecified trimester
       O36.91 Maternal care for fetal problem, unspecified, first trimester
       O36.92 Maternal care for fetal problem, unspecified, second trimester
       O36.93 Maternal care for fetal problem, unspecified, third trimester

## O40 PolyhydramniosO40 Polyhydramnios

    Includes: hydramnios
    Excludes1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
    One of the following 7th characters is to be assigned to each code under category O40. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O40 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O40.1 Polyhydramnios, first trimester
    O40.2 Polyhydramnios, second trimester
    O40.3 Polyhydramnios, third trimester
    O40.9 Polyhydramnios, unspecified trimester

## O41 Other disorders of amniotic fluid and membranesO41 Other disorders of amniotic fluid and membranes

    Excludes1: encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
    One of the following 7th characters is to be assigned to each code under category O41. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of ​multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O41 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O41.0 Oligohydramnios
       Oligohydramnios without rupture of membranes
       O41.00 Oligohydramnios, unspecified trimester
       O41.01 Oligohydramnios, first trimester
       O41.02 Oligohydramnios, second trimester
       O41.03 Oligohydramnios, third trimester
    O41.1 Infection of amniotic sac and membranes
       O41.10 Infection of amniotic sac and membranes, unspecified
          O41.101 Infection of amniotic sac and membranes, unspecified, first trimester
          O41.102 Infection of amniotic sac and membranes, unspecified, second trimester
          O41.103 Infection of amniotic sac and membranes, unspecified, third trimester
          O41.109 Infection of amniotic sac and membranes, unspecified, unspecified trimester
       O41.12 Chorioamnionitis
          O41.121 Chorioamnionitis, first trimester
          O41.122 Chorioamnionitis, second trimester
          O41.123 Chorioamnionitis, third trimester
          O41.129 Chorioamnionitis, unspecified trimester
       O41.14 Placentitis
          O41.141 Placentitis, first trimester
          O41.142 Placentitis, second trimester
          O41.143 Placentitis, third trimester
          O41.149 Placentitis, unspecified trimester
    O41.8 Other specified disorders of amniotic fluid and membranes
       O41.8x Other specified disorders of amniotic fluid and membranes
          O41.8x1 Other specified disorders of amniotic fluid and membranes, first trimester
          O41.8x2 Other specified disorders of amniotic fluid and membranes, second trimester ​
          O41.8x3 Other specified disorders of amniotic fluid and membranes, third trimester
          O41.8x9 Other specified disorders of amniotic fluid and membranes, unspecified trimester
    O41.9 Disorder of amniotic fluid and membranes, unspecified
       O41.90 Disorder of amniotic fluid and membranes, unspecified, unspecified trimester
       O41.91 Disorder of amniotic fluid and membranes, unspecified, first trimester
       O41.92 Disorder of amniotic fluid and membranes, unspecified, second trimester
       O41.93 Disorder of amniotic fluid and membranes, unspecified, third trimester

## O42 Premature rupture of membranesO42 Premature rupture of membranes

    O42.0 Premature rupture of membranes, onset of labor within 24 hours of rupture
       O42.00 Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation
       O42.01 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture
          Premature rupture of membranes before 37 completed weeks of gestation
          O42.011 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester
          O42.012 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester
          O42.013 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester
          O42.019 Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester
       O42.02 Full-term premature rupture of membranes, onset of labor within 24 hours of rupture
          Premature rupture of membranes after 37 completed weeks of gestation
    O42.1 Premature rupture of membranes, onset of labor more than 24 hours following rupture
       O42.10 Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation
       O42.11 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture
          Premature ​rupture of membranes before 37 completed weeks of gestation
          O42.111 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester
          O42.112 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester
          O42.113 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester
          O42.119 Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester
       O42.12 Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture
          Premature rupture of membranes after 37 completed weeks of gestation
    O42.9 Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
       O42.90 Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation
       O42.91 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
          Premature rupture of membranes before 37 completed weeks of gestation
          O42.911 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester
          O42.912 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester
          O42.913 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester
          O42.919 Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester
       O42.92 Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor
          Premature ​rupture of membranes after 37 completed weeks of gestation

## O43 Placental disordersO43 Placental disorders

    Excludes2: maternal care for poor fetal growth due to placental insufficiency (O36.5-)
       placenta previa (O44.-)
       placental polyp (O90.89)
       placentitis (O41.14-)
       premature separation of placenta [abruptio placentae] (O45.-)
    O43.0 Placental transfusion syndromes
       O43.01 Fetomaternal placental transfusion syndrome
          Maternofetal placental transfusion syndrome
          O43.011 Fetomaternal placental transfusion syndrome, first trimester
          O43.012 Fetomaternal placental transfusion syndrome, second trimester
          O43.013 Fetomaternal placental transfusion syndrome, third trimester
          O43.019 Fetomaternal placental transfusion syndrome, unspecified trimester
       O43.02 Fetus-to-fetus placental transfusion syndrome
          O43.021 Fetus-to-fetus placental transfusion syndrome, first trimester
          O43.022 Fetus-to-fetus placental transfusion syndrome, second trimester
          O43.023 Fetus-to-fetus placental transfusion syndrome, third trimester
          O43.029 Fetus-to-fetus placental transfusion syndrome, unspecified trimester
    O43.1 Malformation of placenta
       O43.10 Malformation of placenta, unspecified
          Abnormal placenta NOS
          O43.101 Malformation of placenta, unspecified, first trimester
          O43.102 Malformation of placenta, unspecified, second trimester
          O43.103 Malformation of placenta, unspecified, third trimester
          O43.109 Malformation of placenta, unspecified, unspecified trimester
       O43.11 Circumvallate placenta
          O43.111 Circumvallate placenta, first trimester
          O43.112 Circumvallate placenta, second trimester
          O43. ​113 Circumvallate placenta, third trimester
          O43.119 Circumvallate placenta, unspecified trimester
       O43.12 Velamentous insertion of umbilical cord
          O43.121 Velamentous insertion of umbilical cord, first trimester
          O43.122 Velamentous insertion of umbilical cord, second trimester
          O43.123 Velamentous insertion of umbilical cord, third trimester
          O43.129 Velamentous insertion of umbilical cord, unspecified trimester
       O43.19 Other malformation of placenta
          O43.191 Other malformation of placenta, first trimester
          O43.192 Other malformation of placenta, second trimester
          O43.193 Other malformation of placenta, third trimester
          O43.199 Other malformation of placenta, unspecified trimester
    O43.2 Morbidly adherent placenta
       Code also associated third stage postpartum hemorrhage, if applicable (O72.0)
       Excludes1: retained placenta (O73.-)
       O43.21 Placenta accreta
          O43.211 Placenta accreta, first trimester
          O43.212 Placenta accreta, second trimester
          O43.213 Placenta accreta, third trimester
          O43.219 Placenta accreta, unspecified trimester
       O43.22 Placenta increta
          O43.221 Placenta increta, first trimester
          O43.222 Placenta increta, second trimester
          O43.223 Placenta increta, third trimester
          O43.229 Placenta increta, unspecified trimester
       O43.23 Placenta percreta
          O43.231 Placenta percreta, first trimester
          O43.232 Placenta percreta, second trimester
          O43.233 Placenta percreta, third trimester
          O43.239 Placenta percreta, unspecified trimester
    O43.8 Other placental disorders
       O43.81 Placental infarction
          O43.811 Placental infarction, first trimester
          O43.812 Placental infarction, second trimester
          O43.813 Placental infarction, third trimester
          O43.819 Placental infarction, unspecified trimester
       O43. ​89 Other placental disorders
          Placental dysfunction
          O43.891 Other placental disorders, first trimester
          O43.892 Other placental disorders, second trimester
          O43.893 Other placental disorders, third trimester
          O43.899 Other placental disorders, unspecified trimester
    O43.9 Unspecified placental disorder
       O43.90 Unspecified placental disorder, unspecified trimester
       O43.91 Unspecified placental disorder, first trimester
       O43.92 Unspecified placental disorder, second trimester
       O43.93 Unspecified placental disorder, third trimester

## O44 Placenta previaO44 Placenta previa

    O44.0 Placenta previa specified as without hemorrhage
       Low implantation of placenta specified as without hemorrhage
       O44.00 Placenta previa specified as without hemorrhage, unspecified trimester
       O44.01 Placenta previa specified as without hemorrhage, first trimester
       O44.02 Placenta previa specified as without hemorrhage, second trimester
       O44.03 Placenta previa specified as without hemorrhage, third trimester
    O44.1 Placenta previa with hemorrhage
       Low implantation of placenta, NOS or with hemorrhage
       Marginal placenta previa, NOS or with hemorrhage
       Partial placenta previa, NOS or with hemorrhage
       Total placenta previa, NOS or with hemorrhage
       Excludes1: labor and delivery complicated by hemorrhage from vasa previa (O69.4)
       O44.10 Placenta previa with hemorrhage, unspecified trimester
       O44.11 Placenta previa with hemorrhage, first trimester
       O44.12 Placenta previa with hemorrhage, second trimester
       O44.13 Placenta previa with hemorrhage, third trimester

## O45 Premature separation of placenta [abruptio placentae]O45 Premature separation of placenta [abruptio placentae]

    O45.0 Premature separation of placenta with coagulation defect
       O45.00 Premature separation of placenta with coagulation defect, unspecified
          O45.001 Premature separation of placenta with coagulation defect, unspecified, first trimester
          O45.002 Premature separation of placenta with coagulation defect, unspecified, second trimester
          O45. ​003 Premature separation of placenta with coagulation defect, unspecified, third trimester
          O45.009 Premature separation of placenta with coagulation defect, unspecified, unspecified trimester
       O45.01 Premature separation of placenta with afibrinogenemia
          Premature separation of placenta with hypofibrinogenemia
          O45.011 Premature separation of placenta with afibrinogenemia, first trimester
          O45.012 Premature separation of placenta with afibrinogenemia, second trimester
          O45.013 Premature separation of placenta with afibrinogenemia, third trimester
          O45.019 Premature separation of placenta with afibrinogenemia, unspecified trimester
       O45.02 Premature separation of placenta with disseminated intravascular coagulation
          O45.021 Premature separation of placenta with disseminated intravascular coagulation, first trimester
          O45.022 Premature separation of placenta with disseminated intravascular coagulation, second trimester
          O45.023 Premature separation of placenta with disseminated intravascular coagulation, third trimester
          O45.029 Premature separation of placenta with disseminated intravascular coagulation, unspecified trimester
       O45.09 Premature separation of placenta with other coagulation defect
          O45.091 Premature separation of placenta with other coagulation defect, first trimester
          O45.092 Premature separation of placenta with other coagulation defect, second trimester
          O45.093 Premature separation of placenta with other coagulation defect, third trimester
          O45.099 Premature separation of placenta with other coagulation defect, unspecified trimester
    O45.8 Other premature separation of placenta
       O45.8x Other premature separation of placenta
          O45.8x1 Other premature separation of placenta, first trimester
          O45. ​8x2 Other premature separation of placenta, second trimester
          O45.8x3 Other premature separation of placenta, third trimester
          O45.8x9 Other premature separation of placenta, unspecified trimester
    O45.9 Premature separation of placenta, unspecified
       Abruptio placentae NOS
       O45.90 Premature separation of placenta, unspecified, unspecified trimester
       O45.91 Premature separation of placenta, unspecified, first trimester
       O45.92 Premature separation of placenta, unspecified, second trimester
       O45.93 Premature separation of placenta, unspecified, third trimester

## O46 Antepartum hemorrhage, not elsewhere classifiedO46 Antepartum hemorrhage, not elsewhere classified

    Excludes1: hemorrhage in early pregnancy (O20.-)
       intrapartum hemorrhage NEC (O67.-)
       placenta previa (O44.-)
       premature separation of placenta [abruptio placentae] (O45.-)
    O46.0 Antepartum hemorrhage with coagulation defect
       O46.00 Antepartum hemorrhage with coagulation defect, unspecified
          O46.001 Antepartum hemorrhage with coagulation defect, unspecified, first trimester
          O46.002 Antepartum hemorrhage with coagulation defect, unspecified, second trimester
          O46.003 Antepartum hemorrhage with coagulation defect, unspecified, third trimester
          O46.009 Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester
       O46.01 Antepartum hemorrhage with afibrinogenemia
          Antepartum hemorrhage with hypofibrinogenemia
          O46.011 Antepartum hemorrhage with afibrinogenemia, first trimester
          O46.012 Antepartum hemorrhage with afibrinogenemia, second trimester
          O46.013 Antepartum hemorrhage with afibrinogenemia, third trimester
          O46.019 Antepartum hemorrhage with afibrinogenemia, unspecified trimester
       O46.02 Antepartum hemorrhage with disseminated intravascular coagulation
          O46. ​021 Antepartum hemorrhage with disseminated intravascular coagulation, first trimester
          O46.022 Antepartum hemorrhage with disseminated intravascular coagulation, second trimester
          O46.023 Antepartum hemorrhage with disseminated intravascular coagulation, third trimester
          O46.029 Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester
       O46.09 Antepartum hemorrhage with other coagulation defect
          O46.091 Antepartum hemorrhage with other coagulation defect, first trimester
          O46.092 Antepartum hemorrhage with other coagulation defect, second trimester
          O46.093 Antepartum hemorrhage with other coagulation defect, third trimester
          O46.099 Antepartum hemorrhage with other coagulation defect, unspecified trimester
    O46.8 Other antepartum hemorrhage
       O46.8x Other antepartum hemorrhage
          O46.8x1 Other antepartum hemorrhage, first trimester
          O46.8x2 Other antepartum hemorrhage, second trimester
          O46.8x3 Other antepartum hemorrhage, third trimester
          O46.8x9 Other antepartum hemorrhage, unspecified trimester
    O46.9 Antepartum hemorrhage, unspecified
       O46.90 Antepartum hemorrhage, unspecified, unspecified trimester
       O46.91 Antepartum hemorrhage, unspecified, first trimester
       O46.92 Antepartum hemorrhage, unspecified, second trimester
       O46.93 Antepartum hemorrhage, unspecified, third trimester

## O47 False laborO47 False labor

    Includes: Braxton Hicks contractions
       Threatened labor
    Excludes1: preterm labor (O60.-)
    O47.0 False labor before 37 completed weeks of gestation
       O47.00 False labor before 37 completed weeks of gestation, unspecified trimester
       O47.02 False labor before 37 completed weeks of gestation, second trimester
       O47. ​03 False labor before 37 completed weeks of gestation, third trimester
    O47.1 False labor at or after 37 completed weeks of gestation
    O47.9 False labor, unspecified

## O48 Late pregnancyO48 Late pregnancy

    O48.0 Post-term pregnancy
       Pregnancy over 40 completed weeks to 42 completed weeks gestation
    O48.1 Prolonged pregnancy
       Pregnancy which has advanced beyond 42 completed weeks gestation

# Complications of labor and delivery (O60-O77)Complications of labor and delivery (O60-O77)
## O60 Preterm laborO60 Preterm labor

    Includes: onset (spontaneous) of labor before 37 completed weeks of gestation
    Excludes1: false labor (O47.0-)
       threatened labor NOS (O47.0-)
    O60.0 Preterm labor without delivery
       O60.00 Preterm labor without delivery, unspecified trimester
       O60.02 Preterm labor without delivery, second trimester
       O60.03 Preterm labor without delivery, third trimester
    One of the following 7th characters is to be assigned to each code under subcategory O60.1. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from subcategory O60.1 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O60.1 Preterm labor with preterm delivery
       O60.10 Preterm labor with preterm delivery, unspecified trimester
          Preterm labor with delivery NOS
       O60.12 Preterm labor second trimester with preterm delivery second trimester
       O60.13 Preterm labor second trimester with preterm delivery third trimester
       O60.14 Preterm labor third trimester with preterm delivery third trimester ​
    One of the following 7th characters is to be assigned to each code under subcategory O60.2. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from subcategory O60.2 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O60.2 Term delivery with preterm labor
       O60.20 Term delivery with preterm labor, unspecified trimester
       O60.22 Term delivery with preterm labor, second trimester
       O60.23 Term delivery with preterm labor, third trimester

## O61 Failed induction of laborO61 Failed induction of labor

    O61.0 Failed medical induction of labor
       Failed induction (of labor) by oxytocin
       Failed induction (of labor) by prostaglandins
    O61.1 Failed instrumental induction of labor
       Failed mechanical induction (of labor)
       Failed surgical induction (of labor)
    O61.8 Other failed induction of labor
    O61.9 Failed induction of labor, unspecified

## O62 Abnormalities of forces of laborO62 Abnormalities of forces of labor

    O62.0 Primary inadequate contractions
       Failure of cervical dilatation
       Primary hypotonic uterine dysfunction
       Uterine inertia during latent phase of labor
    O62.1 Secondary uterine inertia
       Arrested active phase of labor
       Secondary hypotonic uterine dysfunction
    O62.2 Other uterine inertia
       Atony of uterus without hemorrhage
       Atony of uterus NOS
       Desultory labor
       Hypotonic uterine dysfunction NOS
       Irregular labor
       Poor contractions
       Slow slope active phase of labor
       Uterine inertia NOS
       Excludes1: atony of uterus with hemorrhage (postpartum) (O72.1) ​
          postpartum atony of uterus without hemorrhage (O75.89)
    O62.3 Precipitate labor
    O62.4 Hypertonic, incoordinate, and prolonged uterine contractions
       Cervical spasm
       Contraction ring dystocia
       Dyscoordinate labor
       Hour-glass contraction of uterus
       Hypertonic uterine dysfunction
       Incoordinate uterine action
       Tetanic contractions
       Uterine dystocia NOS
       Uterine spasm
       Excludes1: dystocia (fetal) (maternal) NOS (O66.9)
    O62.8 Other abnormalities of forces of labor
    O62.9 Abnormality of forces of labor, unspecified

## O63 Long laborO63 Long labor

    O63.0 Prolonged first stage (of labor)
    O63.1 Prolonged second stage (of labor)
    O63.2 Delayed delivery of second twin, triplet, etc.
    O63.9 Long labor, unspecified
       Prolonged labor NOS

## O64 Obstructed labor due to malposition and malpresentation of fetusO64 Obstructed labor due to malposition and malpresentation of fetus

    One of the following 7th characters is to be assigned to each code under category O64. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O64 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O64.0 Obstructed labor due to incomplete rotation of fetal head
       Deep transverse arrest
       Obstructed labor due to persistent occipitoiliac (position)
       Obstructed labor due to persistent occipitoposterior (position)
       Obstructed labor due to persistent occipitosacral (position)
       Obstructed labor due to persistent occipitotransverse (position)
    O64.1 Obstructed labor due to breech presentation
       Obstructed labor due to buttocks presentation ​
       Obstructed labor due to complete breech presentation
       Obstructed labor due to frank breech presentation
    O64.2 Obstructed labor due to face presentation
       Obstructed labor due to chin presentation
    O64.3 Obstructed labor due to brow presentation
    O64.4 Obstructed labor due to shoulder presentation
       Prolapsed arm
       Excludes1: impacted shoulders (O66.0)
          shoulder dystocia (O66.0)
    O64.5 Obstructed labor due to compound presentation
    O64.8 Obstructed labor due to other malposition and malpresentation
       Obstructed labor due to footling presentation
       Obstructed labor due to incomplete breech presentation
    O64.9 Obstructed labor due to malposition and malpresentation, unspecified

## O65 Obstructed labor due to maternal pelvic abnormalityO65 Obstructed labor due to maternal pelvic abnormality

    O65.0 Obstructed labor due to deformed pelvis
    O65.1 Obstructed labor due to generally contracted pelvis
    O65.2 Obstructed labor due to pelvic inlet contraction
    O65.3 Obstructed labor due to pelvic outlet and mid-cavity contraction
    O65.4 Obstructed labor due to fetopelvic disproportion, unspecified
       Excludes1: dystocia due to abnormality of fetus (O66.2-O66.3)
    O65.5 Obstructed labor due to abnormality of maternal pelvic organs
       Obstructed labor due to conditions listed in O34.-
       Use additional code to identify abnormality of pelvic organs O34.-
    O65.8 Obstructed labor due to other maternal pelvic abnormalities
    O65.9 Obstructed labor due to maternal pelvic abnormality, unspecified

## O66 Other obstructed laborO66 Other obstructed labor

    O66.0 Obstructed labor due to shoulder dystocia
       Impacted shoulders
    O66.1 Obstructed labor due to locked twins
    O66.2 Obstructed labor due to unusually large fetus
    O66.3 Obstructed labor due to other abnormalities of fetus
       Dystocia due to fetal ascites
       Dystocia due to fetal hydrops
       Dystocia due to fetal meningomyelocele
       Dystocia due to fetal sacral teratoma
       Dystocia due to fetal tumor
       Dystocia due to hydrocephalic fetus
       Use additional code to identify cause of obstruction
    O66.4 Failed trial of labor
       O66.40 Failed trial of labor, unspecified ​
       066.41 Failed attempted vaginal birth after previous cesarean delivery
          Code first rupture of uterus, if applicable (O71.0-, O71.1)
    O66.5 Attempted application of vacuum extractor and forceps
       Attempted application of vacuum or forceps, with subsequent delivery by forceps or cesarean delivery
    O66.6 Obstructed labor due to other multiple fetuses
    O66.8 Other specified obstructed labor
       Use additional code to identify cause of obstruction
    O66.9 Obstructed labor, unspecified
       Dystocia NOS
       Fetal dystocia NOS
       Maternal dystocia NOS

## O67 Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classifiedO67 Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified

    Excludes1: antepartum hemorrhage NEC (O46.-)
       placenta previa (O44.-)
       premature separation of placenta [abruptio placentae] (O45.-)
    Excludes2: postpartum hemorrhage (O72.-)
    O67.0 Intrapartum hemorrhage with coagulation defect
       Intrapartum hemorrhage (excessive) associated with afibrinogenemia
       Intrapartum hemorrhage (excessive) associated with disseminated intravascular coagulation
       Intrapartum hemorrhage (excessive) associated with hyperfibrinolysis
       Intrapartum hemorrhage (excessive) associated with hypofibrinogenemia
    O67.8 Other intrapartum hemorrhage
       Excessive intrapartum hemorrhage
    O67.9 Intrapartum hemorrhage, unspecified

## O68 Labor and delivery complicated by abnormality of fetal acid-base balanceO68 Labor and delivery complicated by abnormality of fetal acid-base balance

    Includes: fetal acidemia complicating labor and delivery
       fetal acidosis complicating labor and delivery
       fetal alkalosis complicating labor and delivery
       fetal metabolic acidemia complicating labor and delivery
    Excludes1: fetal stress NOS (O77.9)
       labor and delivery complicated by electrocardiographic evidence of fetal stress (O77.8)
       labor and delivery complicated by ultrasonic evidence of fetal stress (O77.8)
    Excludes2: abnormality in fetal heart rate or rhythm (O76)
       labor and delivery complicated by meconium in amniotic fluid (O77.0)
==O69 Labor and delivery complicated by umbilical cord complications== ​One of the following 7th characters is to be assigned to each code under category O69. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O69 that has a 7th character of 1 through 9.
       0 not applicable or unspecified
       1 fetus 1
       2 fetus 2
       3 fetus 3
       4 fetus 4
       5 fetus 5
       9 other fetus
    O69.0 Labor and delivery complicated by prolapse of cord
    O69.1 Labor and delivery complicated by cord around neck, with compression
       Excludes1: labor and delivery complicated by cord around neck, without compression (O69.81)
    O69.2 Labor and delivery complicated by other cord entanglement, with compression
       Labor and delivery complicated by compression of cord NOS
       Labor and delivery complicated by entanglement of cords of twins in monoamniotic sac
       Labor and delivery complicated by knot in cord
       Excludes1: labor and delivery complicated by other cord entanglement, without compression (O69.82)
    O69.3 Labor and delivery complicated by short cord
    O69.4 Labor and delivery complicated by vasa previa
       Labor and delivery complicated by hemorrhage from vasa previa
    O69.5 Labor and delivery complicated by vascular lesion of cord
       Labor and delivery complicated by cord bruising
       Labor and delivery complicated by cord hematoma
       Labor and delivery complicated by thrombosis of umbilical vessels
    O69.8 Labor and delivery complicated by other cord complications
       O69.81 Labor and delivery complicated by cord around neck, without compression
       O69.82 Labor and delivery complicated by other cord entanglement, without compression
       O69.89 Labor and delivery complicated by other cord complications
    O69.9 Labor and delivery complicated by cord complication, unspecified

## O70 Perineal laceration during deliveryO70 Perineal laceration during delivery

    Includes: episiotomy extended by laceration
    Excludes1: obstetric high vaginal laceration alone (O71.4) ​
    O70.0 First degree perineal laceration during delivery
       Perineal laceration, rupture or tear involving fourchette during delivery
       Perineal laceration, rupture or tear involving labia during delivery
       Perineal laceration, rupture or tear involving skin during delivery
       Perineal laceration, rupture or tear involving vagina during delivery
       Perineal laceration, rupture or tear involving vulva during delivery
       Slight perineal laceration, rupture or tear during delivery
    O70.1 Second degree perineal laceration during delivery
       Perineal laceration, rupture or tear during delivery as in O70.0, also involving pelvic floor
       Perineal laceration, rupture or tear during delivery as in O70.0, also involving perineal muscles
       Perineal laceration, rupture or tear during delivery as in O70.0, also involving vaginal muscles
       Excludes1: perineal laceration involving anal sphincter (O70.2)
    O70.2 Third degree perineal laceration during delivery
       Perineal laceration, rupture or tear during delivery as in O70.1, also involving anal sphincter
       Perineal laceration, rupture or tear during delivery as in O70.1, also involving rectovaginal septum
       Perineal laceration, rupture or tear during delivery as in O70.1, also involving sphincter NOS
       Excludes1: anal sphincter tear during delivery without third degree perineal laceration (O70.4)
          perineal laceration involving anal or rectal mucosa (O70.3)
    O70.3 Fourth degree perineal laceration during delivery
       Perineal laceration, rupture or tear during delivery as in O70.2, also involving anal mucosa
       Perineal laceration, rupture or tear during delivery as in O70.2, also involving rectal mucosa
    O70.4 Anal sphincter tear complicating delivery, not associated with third degree laceration
       Excludes1: anal sphincter tear with third degree perineal laceration (O70.2)
    O70.9 Perineal laceration during delivery, unspecified

## O71 Other obstetric traumaO71 Other obstetric trauma

    Includes: damage from instruments
    O71.0 Rupture of uterus (spontaneous) before onset of labor
       Excludes1: disruption of (current) cesarean delivery wound (O90.0)
          laceration of uterus, NEC (O71.81)
       O71.00 Rupture of uterus before onset of labor, unspecified trimester
       O71.02 Rupture of uterus before onset of labor, second trimester
       O71.03 Rupture of uterus before onset of labor, third trimester
    O71.1 Rupture of uterus during labor
       Rupture of uterus not stated as occurring before onset of labor ​
       Excludes1:disruption of cesarean delivery wound (O90.0)
          laceration of uterus, NEC (O71.81)
    O71.2 Postpartum inversion of uterus
    O71.3 Obstetric laceration of cervix
       Annular detachment of cervix
    O71.4 Obstetric high vaginal laceration alone
       Laceration of vaginal wall without perineal laceration
       Excludes1: obstetric high vaginal laceration with perineal laceration (O70.-)
    O71.5 Other obstetric injury to pelvic organs
       Obstetric injury to bladder
       Obstetric injury to urethra
    O71.6 Obstetric damage to pelvic joints and ligaments
       Obstetric avulsion of inner symphyseal cartilage
       Obstetric damage to coccyx
       Obstetric traumatic separation of symphysis (pubis)
    O71.7 Obstetric hematoma of pelvis
       Obstetric hematoma of perineum
       Obstetric hematoma of vagina
       Obstetric hematoma of vulva
    O71.8 Other specified obstetric trauma
       O71.81 Laceration of uterus, not elsewhere classified
       O71.89 Other specified obstetric trauma
    O71.9 Obstetric trauma, unspecified

## O72 Postpartum hemorrhageO72 Postpartum hemorrhage

    Includes: hemorrhage after delivery of fetus or infant
    O72.0 Third-stage hemorrhage
       Hemorrhage associated with retained, trapped or adherent placenta
       Retained placenta NOS
       Code also type of adherent placenta (O43.2-)
    O72.1 Other immediate postpartum hemorrhage
       Hemorrhage following delivery of placenta
       Postpartum hemorrhage (atonic) NOS
       Uterine atony with hemorrhage
       Excludes1: uterine atony NOS (O62.2)
          uterine atony without hemorrhage (O62.2)
          postpartum atony of uterus without hemorrhage (O75.89)
    O72.2 Delayed and secondary postpartum hemorrhage
       Hemorrhage associated with retained portions of placenta or membranes after the first 24 hours following delivery of placenta
       Retained products of conception NOS, following delivery
    O72.3 Postpartum coagulation defects
       Postpartum afibrinogenemia
       Postpartum fibrinolysis
==O73 Retained placenta and membranes, without hemorrhage== ​
    Excludes1:placenta accreta (O43.21-)
       placenta increta (O43.22-)
       placenta percreta (O43.23-)
    O73.0 Retained placenta without hemorrhage
       Adherent placenta, without hemorrhage
       Trapped placenta without hemorrhage
    O73.1 Retained portions of placenta and membranes, without hemorrhage
       Retained products of conception following delivery, without hemorrhage

## O74 Complications of anesthesia during labor and deliveryO74 Complications of anesthesia during labor and delivery

    Includes: maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during labor and delivery
    Use additional code, if applicable, to identify specific complication
    O74.0 Aspiration pneumonitis due to anesthesia during labor and delivery
       Inhalation of stomach contents or secretions NOS due to anesthesia during labor and delivery
       Mendelson's syndrome due to anesthesia during labor and delivery
    O74.1 Other pulmonary complications of anesthesia during labor and delivery
    O74.2 Cardiac complications of anesthesia during labor and delivery
    O74.3 Central nervous system complications of anesthesia during labor and delivery
    O74.4 Toxic reaction to local anesthesia during labor and delivery
    O74.5 Spinal and epidural anesthesia-induced headache during labor and delivery
    O74.6 Other complications of spinal and epidural anesthesia during labor and delivery
    O74.7 Failed or difficult intubation for anesthesia during labor and delivery
    O74.8 Other complications of anesthesia during labor and delivery
    O74.9 Complication of anesthesia during labor and delivery, unspecified

## O75 Other complications of labor and delivery, not elsewhere classifiedO75 Other complications of labor and delivery, not elsewhere classified

    Excludes2: puerperal (postpartum) infection (O86.-)
       puerperal (postpartum) sepsis (O85)
    O75.0 Maternal distress during labor and delivery
    O75.1 Shock during or following labor and delivery
       Obstetric shock following labor and delivery
    O75.2 Pyrexia during labor, not elsewhere classified
    O75.3 Other infection during labor
       Sepsis during labor
       Use additional code (B95-B97), to identify infectious agent ​
    O75.4 Other complications of obstetric surgery and procedures
       Cardiac arrest following obstetric surgery or procedures
       Cardiac failure following obstetric surgery or procedures
       Cerebral anoxia following obstetric surgery or procedures
       Pulmonary edema following obstetric surgery or procedures
       Use additional code to identify specific complication
       Excludes2: complications of anesthesia during labor and delivery (O74.-)
          disruption of obstetrical (surgical) wound (O90.0-O90.1)
          hematoma of obstetrical (surgical) wound (O90.2)
          infection of obstetrical (surgical) wound (O86.0)
    O75.5 Delayed delivery after artificial rupture of membranes
    O75.8 Other specified complications of labor and delivery
       O75.81 Maternal exhaustion complicating labor and delivery
       O75.89 Other specified complications of labor and delivery
    O75.9 Complication of labor and delivery, unspecified

## O76 Abnormality in fetal heart rate and rhythm complicating labor and deliveryO76 Abnormality in fetal heart rate and rhythm complicating labor and delivery

    Includes: Depressed fetal heart rate tones complicating labor and delivery
       Fetal bradycardia complicating labor and delivery
       Fetal heart rate decelerations complicating labor and delivery
       Fetal heart rate irregularity complicating labor and delivery
       Fetal heart rate abnormal variability complicating labor and delivery
       Fetal tachycardia complicating labor and delivery
       Non-reassuring fetal heart rate or rhythm complicating labor and delivery
    Excludes1: fetal stress NOS (O77.9)
       labor and delivery complicated by electrocardiographic evidence of fetal stress (O77.8)
       labor and delivery complicated by ultrasonic evidence of fetal stress (O77.8)
    Excludes2: fetal metabolic acidemia (O68)
       other fetal stress (O77.0-O77.1)

## O77 Other fetal stress complicating labor and deliveryO77 Other fetal stress complicating labor and delivery

    O77.0 Labor and delivery complicated by meconium in amniotic fluid
    O77.1 Fetal stress in labor or delivery due to drug administration
    O77.8 Labor and delivery complicated by other evidence of fetal stress
       Labor and delivery complicated by electrocardiographic evidence of fetal stress
       Labor and delivery complicated by ultrasonic evidence of fetal stress
       Excludes1: abnormality of fetal acid-base balance (O68)
          abnormality in fetal heart rate or rhythm (O76)
          fetal metabolic acidemia (O68)
    O77.9 Labor and delivery complicated by fetal stress, unspecified
       Excludes1: abnormality of fetal acid-base balance (O68)
          abnormality ​in fetal heart rate or rhythm (O76)
          fetal metabolic acidemia (O68)

# Encounter for delivery (O80, O82)Encounter for delivery (O80, O82)
## O80 Encounter for full-term uncomplicated deliveryO80 Encounter for full-term uncomplicated delivery

    Delivery requiring minimal or no assistance, with or without episiotomy, without fetal manipulation [e.g., rotation version] or instrumentation [forceps] of a spontaneous, cephalic, vaginal, full-term, single, live-born infant. This code is for use as a single diagnosis code and is not to be used with any other code from chapter 15. This code must be accompanied by a delivery code from the appropriate procedure classification.
    Use additional code to indicate outcome of delivery (Z37.0)

## O82 Encounter for cesarean delivery without indicationO82 Encounter for cesarean delivery without indication

    This code must be accompanied by a delivery code from the appropriate procedure classification.
    Use additional code to indicate outcome of delivery (Z37.0)

# Complications predominantly related to the puerperium (O85-O92)Complications predominantly related to the puerperium (O85-O92)

    Excludes2: mental and behavioral disorders associated with the puerperium (F53)
       obstetrical tetanus (A34)
       puerperal osteomalacia (M83.0)

## O85 Puerperal sepsisO85 Puerperal sepsis

    Includes: postpartum sepsis
       puerperal peritonitis
       puerperal pyemia
    Use additional code (B95-B97), to identify infectious agent
    Excludes1: fever of unknown origin following delivery (O86.4)
       genital tract infection following delivery (O86.1-)
       obstetric pyemic and septic embolism (O88.3-)
       puerperal septic thrombophlebitis (O86.81)
       urinary tract infection following delivery (O86.2-)
    Excludes2: sepsis during labor (O75.3)

## O86 Other puerperal infectionsO86 Other puerperal infections

    Use additional code (B95-B97), to identify infectious agent
    Excludes2: infection during labor (O75.3)
       obstetrical tetanus (A34)
    O86.0 Infection of obstetric surgical wound
       Infected cesarean delivery wound following delivery
       Infected perineal repair following delivery
    O86. ​1 Other infection of genital tract following delivery
       O86.11 Cervicitis following delivery
       O86.12 Endometritis following delivery
       O86.13 Vaginitis following delivery
       O86.19 Other infection of genital tract following delivery
    O86.2 Urinary tract infection following delivery
       O86.20 Urinary tract infection following delivery, unspecified
       Puerperal urinary tract infection NOS
       O86.21 Infection of kidney following delivery
       O86.22 Infection of bladder following delivery
          Infection of urethra following delivery
       O86.29 Other urinary tract infection following delivery
    O86.4 Pyrexia of unknown origin following delivery
       Puerperal infection NOS following delivery
       Puerperal pyrexia NOS following delivery
       Excludes2: pyrexia during labor (O75.2)
    O86.8 Other specified puerperal infections
       O86.81 Puerperal septic thrombophlebitis
       O86.89 Other specified puerperal infections

## O87 Venous complications in the puerperiumO87 Venous complications in the puerperium

    Includes: those in labor, delivery and the puerperium
    Excludes2: obstetric embolism (O88.-)
       puerperal septic thrombophlebitis (O86.81)
       venous complications in pregnancy (O22.-)
    O87.0 Superficial thrombophlebitis in the puerperium
       Puerperal phlebitis NOS
       Puerperal thrombosis NOS
    O87.1 Deep phlebothrombosis in the puerperium
       Deep vein thrombosis, postpartum
       Pelvic thrombophlebitis, postpartum
       Use additional code to identify the deep vein thrombosis (I82.4-, I82.5-, I82.62-. I82.72-)
       Use additional code, if applicable, for associated long-term (current) use of anticoagulants (Z79.01)
    O87.2 Hemorrhoids in the puerperium
    O87.3 Cerebral venous thrombosis in the puerperium
       Cerebrovenous sinus thrombosis in the puerperium
    O87.4 Varicose veins of lower extremity in the puerperium
    O87.8 Other venous complications in the puerperium
       Genital varices in the puerperium
    O87.9 Venous complication in the puerperium, unspecified
       Puerperal phlebopathy NOS

## O88 Obstetric embolismO88 Obstetric embolism

    Excludes1: embolism complicating abortion NOS (O03.2)
       embolism complicating ectopic or molar pregnancy (O08.2)
       embolism ​complicating failed attempted abortion (O07.2, O07.7)
       embolism complicating induced abortion (O04.2, O05.2)
       embolism complicating spontaneous abortion (O03.2, O03.7)
    O88.0 Obstetric air embolism
       O88.01 Obstetric air embolism in pregnancy
          O88.011 Air embolism in pregnancy, first trimester
          O88.012 Air embolism in pregnancy, second trimester
          O88.013 Air embolism in pregnancy, third trimester
          O88.019 Air embolism in pregnancy, unspecified trimester
       O88.02 Air embolism in childbirth
       O88.03 Air embolism in the puerperium
    O88.1 Amniotic fluid embolism
       Anaphylactoid syndrome in pregnancy
       O88.11 Amniotic fluid embolism in pregnancy
          O88.111 Amniotic fluid embolism in pregnancy, first trimester
          O88.112 Amniotic fluid embolism in pregnancy, second trimester
          O88.113 Amniotic fluid embolism in pregnancy, third trimester
          O88.119 Amniotic fluid embolism in pregnancy, unspecified trimester
       O88.12 Amniotic fluid embolism in childbirth
       O88.13 Amniotic fluid embolism in the puerperium
    O88.2 Obstetric thromboembolism
       O88.21 Thromboembolism in pregnancy
          Obstetric (pulmonary) embolism NOS
          O88.211 Thromboembolism in pregnancy, first trimester
          O88.212 Thromboembolism in pregnancy, second trimester
          O88.213 Thromboembolism in pregnancy, third trimester
          O88.219 Thromboembolism in pregnancy, unspecified trimester
       O88.22 Thromboembolism in childbirth
       O88.23 Thromboembolism in the puerperium
       Puerperal (pulmonary) embolism NOS
    O88.3 Obstetric pyemic and septic embolism
       O88.31 Pyemic and septic embolism in pregnancy
          O88.311 Pyemic and septic embolism in pregnancy, first trimester
          O88.312 Pyemic and septic embolism in pregnancy, second trimester
          O88. ​313 Pyemic and septic embolism in pregnancy, third trimester
          O88.319 Pyemic and septic embolism in pregnancy, unspecified trimester
       O88.32 Pyemic and septic embolism in childbirth
       O88.33 Pyemic and septic embolism in the puerperium
    O88.8 Other obstetric embolism
       Obstetric fat embolism
       O88.81 Other embolism in pregnancy
          O88.811 Other embolism in pregnancy, first trimester
          O88.812 Other embolism in pregnancy, second trimester
          O88.813 Other embolism in pregnancy, third trimester
          O88.819 Other embolism in pregnancy, unspecified trimester
       O88.82 Other embolism in childbirth
       O88.83 Other embolism in the puerperium

## O89 Complications of anesthesia during the puerperiumO89 Complications of anesthesia during the puerperium

    Includes: maternal complications arising from the administration of a general, regional or local anesthetic, analgesic or other sedation during the puerperium
    Use additional code, if applicable, to identify specific complication
    O89.0 Pulmonary complications of anesthesia during the puerperium
       O89.01 Aspiration pneumonitis due to anesthesia during the puerperium
          Inhalation of stomach contents or secretions NOS due to anesthesia during the puerperium
          Mendelson's syndrome due to anesthesia during the puerperium
       O89.09 Other pulmonary complications of anesthesia during the puerperium
    O89.1 Cardiac complications of anesthesia during the puerperium
    O89.2 Central nervous system complications of anesthesia during the puerperium
    O89.3 Toxic reaction to local anesthesia during the puerperium
    O89.4 Spinal and epidural anesthesia-induced headache during the puerperium
    O89.5 Other complications of spinal and epidural anesthesia during the puerperium
    O89.6 Failed or difficult intubation for anesthesia during the puerperium
    O89.8 Other complications of anesthesia during the puerperium
    O89.9 Complication of anesthesia during the puerperium, unspecified

## O90 ​Complications of the puerperium, not elsewhere classified

    O90.0 Disruption of cesarean delivery wound
       Dehiscence of cesarean delivery wound
       Excludes1: rupture of uterus (spontaneous) before onset of labor (O71.0-)
          rupture of uterus during labor (O71.1)
    O90.1 Disruption of perineal obstetric wound
       Disruption of wound of episiotomy
       Disruption of wound of perineal laceration
       Secondary perineal tear
    O90.2 Hematoma of obstetric wound
    O90.3 Peripartum cardiomyopathy
       Conditions in I42.- arising during pregnancy and the puerperium
       Excludes1: pre-existing heart disease complicating pregnancy and the puerperium (O99.4-)
    O90.4 Postpartum acute kidney failure
       Hepatorenal syndrome following labor and delivery
    O90.5 Postpartum thyroiditis
    O90.6 Postpartum mood disturbance
       Postpartum blues
       Postpartum dysphoria
       Postpartum sadness
       Excludes1: postpartum depression (F53)
          puerperal psychosis (F53)
    O90.8 Other complications of the puerperium, not elsewhere classified
       O90.81 Anemia of the puerperium
          Postpartum anemia NOS
          Excludes1: pre-existing anemia complicating the puerperium (O99.03)
       O90.89 Other complications of the puerperium, not elsewhere classified
          Placental polyp
    O90.9 Complication of the puerperium, unspecified

## O91 Infections of breast associated with pregnancy, the puerperium and lactationO91 Infections of breast associated with pregnancy, the puerperium and lactation

    Use additional code to identify infection
    O91.0 Infection of nipple associated with pregnancy, the puerperium and lactation
       O91.01 Infection of nipple associated with pregnancy
          Gestational abscess of nipple
          O91.011 Infection of nipple associated with pregnancy, first trimester
          O91.012 Infection of nipple associated with pregnancy, second trimester
          O91. ​013 Infection of nipple associated with pregnancy, third trimester
          O91.019 Infection of nipple associated with pregnancy, unspecified trimester
       O91.02 Infection of nipple associated with the puerperium
          Puerperal abscess of nipple
       O91.03 Infection of nipple associated with lactation
          Abscess of nipple associated with lactation
    O91.1 Abscess of breast associated with pregnancy, the puerperium and lactation
       O91.11 Abscess of breast associated with pregnancy
          Gestational mammary abscess
          Gestational purulent mastitis
          Gestational subareolar abscess
          O91.111 Abscess of breast associated with pregnancy, first trimester
          O91.112 Abscess of breast associated with pregnancy, second trimester
          O91.113 Abscess of breast associated with pregnancy, third trimester
          O91.119 Abscess of breast associated with pregnancy, unspecified trimester
       O91.12 Abscess of breast associated with the puerperium
          Puerperal mammary abscess
          Puerperal purulent mastitis
          Puerperal subareolar abscess
       O91.13 Abscess of breast associated with lactation
          Mammary abscess associated with lactation
          Purulent mastitis associated with lactation
          Subareolar abscess associated with lactation
    O91.2 Nonpurulent mastitis associated with pregnancy, the puerperium and lactation
       O91.21 Nonpurulent mastitis associated with pregnancy
          Gestational interstitial mastitis
          Gestational lymphangitis of breast
          Gestational mastitis NOS
          Gestational parenchymatous mastitis
          O91.211 Nonpurulent mastitis associated with pregnancy, first trimester
          O91.212 Nonpurulent mastitis associated with pregnancy, second trimester
          O91.213 Nonpurulent mastitis associated with pregnancy, third trimester
          O91. ​219 Nonpurulent mastitis associated with pregnancy, unspecified trimester
       O91.22 Nonpurulent mastitis associated with the puerperium
          Puerperal interstitial mastitis
          Puerperal lymphangitis of breast
          Puerperal mastitis NOS
          Puerperal parenchymatous mastitis
       O91.23 Nonpurulent mastitis associated with lactation
          Interstitial mastitis associated with lactation
          Lymphangitis of breast associated with lactation
          Mastitis NOS associated with lactation
          Parenchymatous mastitis associated with lactation

## O92 Other disorders of breast and disorders of lactation associated with pregnancy and the puerperiumO92 Other disorders of breast and disorders of lactation associated with pregnancy and the puerperium

    O92.0 Retracted nipple associated with pregnancy, the puerperium, and lactation
       O92.01 Retracted nipple associated with pregnancy
          O92.011 Retracted nipple associated with pregnancy, first trimester
          O92.012 Retracted nipple associated with pregnancy, second trimester
          O92.013 Retracted nipple associated with pregnancy, third trimester
          O92.019 Retracted nipple associated with pregnancy, unspecified trimester
       O92.02 Retracted nipple associated with the puerperium
       O92.03 Retracted nipple associated with lactation
    O92.1 Cracked nipple associated with pregnancy, the puerperium, and lactation
       Fissure of nipple, gestational or puerperal
       O92.11 Cracked nipple associated with pregnancy
          O92.111 Cracked nipple associated with pregnancy, first trimester
          O92.112 Cracked nipple associated with pregnancy, second trimester
          O92.113 Cracked nipple associated with pregnancy, third trimester
          O92.119 Cracked nipple associated with pregnancy, unspecified trimester
       O92.12 Cracked nipple associated with the puerperium
       O92.13 Cracked nipple associated with lactation
    O92.2 Other and unspecified disorders of breast associated with pregnancy and the puerperium
       O92.20 Unspecified disorder of breast associated with pregnancy and the puerperium
       O92. ​29 Other disorders of breast associated with pregnancy and the puerperium
    O92.3 Agalactia
       Primary agalactia
       Excludes1: Elective agalactia (O92.5)
          Secondary agalactia (O92.5)
          Therapeutic agalactia (O92.5)
    O92.4 Hypogalactia
    O92.5 Suppressed lactation
       Elective agalactia
       Secondary agalactia
       Therapeutic agalactia
       Excludes1: primary agalactia (O92.3)
    O92.6 Galactorrhea
    O92.7 Other and unspecified disorders of lactation
       O92.70 Unspecified disorders of lactation
       O92.79 Other disorders of lactation
          Puerperal galactocele

# Other obstetric conditions, not elsewhere classified (O94-O9A)Other obstetric conditions, not elsewhere classified (O94-O9A)
## O94 Sequelae of complication of pregnancy, childbirth, and the puerperiumO94 Sequelae of complication of pregnancy, childbirth, and the puerperium

    Note: This category is to be used to indicate conditions in O00-O77.-, O85-O94 and O98-O99.- as the cause of late effects. The ?sequelae? include conditions specified as such, or as late effects, which may occur at any time after the puerperium
    Code first condition resulting from (sequela) of complication of pregnancy, childbirth, and the puerperium

## O98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperiumO98 Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

    Includes: the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care
    Use additional code (Chapter 1), to identify specific infectious or parasitic disease
    Excludes2: herpes gestationis (O26.4-)
       infectious carrier state (O99.82-, O99.83-)
       obstetrical tetanus (A34)
       puerperal infection (O86.-)
       puerperal sepsis (O85)
       when the reason for maternal care is that the disease is known or suspected to have affected the fetus (O35-O36)
    O98. ​0 Tuberculosis complicating pregnancy, childbirth and the puerperium
       Conditions in A15-A19
       O98.01 Tuberculosis complicating pregnancy
          O98.011 Tuberculosis complicating pregnancy, first trimester
          O98.012 Tuberculosis complicating pregnancy, second trimester
          O98.013 Tuberculosis complicating pregnancy, third trimester
          O98.019 Tuberculosis complicating pregnancy, unspecified trimester
       O98.02 Tuberculosis complicating childbirth
       O98.03 Tuberculosis complicating the puerperium
    O98.1 Syphilis complicating pregnancy, childbirth and the puerperium
       Conditions in A50-A53
       O98.11 Syphilis complicating pregnancy
          O98.111 Syphilis complicating pregnancy, first trimester
          O98.112 Syphilis complicating pregnancy, second trimester
          O98.113 Syphilis complicating pregnancy, third trimester
          O98.119 Syphilis complicating pregnancy, unspecified trimester
       O98.12 Syphilis complicating childbirth
       O98.13 Syphilis complicating the puerperium
    O98.2 Gonorrhea complicating pregnancy, childbirth and the puerperium
       Conditions in A54.-
       O98.21 Gonorrhea complicating pregnancy
          O98.211 Gonorrhea complicating pregnancy, first trimester
          O98.212 Gonorrhea complicating pregnancy, second trimester
          O98.213 Gonorrhea complicating pregnancy, third trimester
          O98.219 Gonorrhea complicating pregnancy, unspecified trimester
       O98.22 Gonorrhea complicating childbirth
       O98.23 Gonorrhea complicating the puerperium
    O98.3 Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium
       Conditions in A55-A64
       O98. ​31 Other infections with a predominantly sexual mode of transmission complicating pregnancy
          O98.311 Other infections with a predominantly sexual mode of transmission complicating pregnancy, first trimester
          O98.312 Other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester
          O98.313 Other infections with a predominantly sexual mode of transmission complicating pregnancy, third trimester
          O98.319 Other infections with a predominantly sexual mode of transmission complicating pregnancy, unspecified trimester
       O98.32 Other infections with a predominantly sexual mode of transmission complicating childbirth
       O98.33 Other infections with a predominantly sexual mode of transmission complicating the puerperium
    O98.4 Viral hepatitis complicating pregnancy, childbirth and the puerperium
       Conditions in B15-B19
       O98.41 Viral hepatitis complicating pregnancy
          O98.411 Viral hepatitis complicating pregnancy, first trimester
          O98.412 Viral hepatitis complicating pregnancy, second trimester
          O98.413 Viral hepatitis complicating pregnancy, third trimester
          O98.419 Viral hepatitis complicating pregnancy, unspecified trimester
       O98.42 Viral hepatitis complicating childbirth
       O98.43 Viral hepatitis complicating the puerperium
    O98.5 Other viral diseases complicating pregnancy, childbirth and the puerperium
       Conditions in A80-B09, B25-B34, R87.81-, R87.82-
       Excludes:1 human immunodeficiency [HIV] disease complicating pregnancy, childbirth and the puerperium (O98.7-)
       O98.51 Other viral diseases complicating pregnancy
          O98.511 Other viral diseases complicating pregnancy, first trimester
          O98.512 Other viral diseases complicating pregnancy, second trimester
          O98.513 Other viral diseases complicating pregnancy, third trimester
          O98. ​519 Other viral diseases complicating pregnancy, unspecified trimester
       O98.52 Other viral diseases complicating childbirth
       O98.53 Other viral diseases complicating the puerperium
    O98.6 Protozoal diseases complicating pregnancy, childbirth and the puerperium
       Conditions in B50-B64
       O98.61 Protozoal diseases complicating pregnancy
          O98.611 Protozoal diseases complicating pregnancy, first trimester
          O98.612 Protozoal diseases complicating pregnancy, second trimester
          O98.613 Protozoal diseases complicating pregnancy, third trimester
          O98.619 Protozoal diseases complicating pregnancy, unspecified trimester
       O98.62 Protozoal diseases complicating childbirth
       O98.63 Protozoal diseases complicating the puerperium
    O98.7 Human immunodeficiency [HIV] disease complicating pregnancy, childbirth and the puerperium
       Use additional code to identify the type of HIV disease:
       Acquired immune deficiency syndrome (AIDS) (B20)
       Asymptomatic HIV status (Z21)
       HIV positive NOS (Z21)
       Symptomatic HIV disease (B20)
       O98.71 Human immunodeficiency [HIV] disease complicating pregnancy
          O98.711 Human immunodeficiency [HIV] disease complicating pregnancy, first trimester
          O98.712 Human immunodeficiency [HIV] disease complicating pregnancy, second trimester
          O98.713 Human immunodeficiency [HIV] disease complicating pregnancy, third trimester
          O98.719 Human immunodeficiency [HIV] disease complicating pregnancy, unspecified trimester
       O98.72 Human immunodeficiency [HIV] disease complicating childbirth
       O98.73 Human immunodeficiency [HIV] disease complicating the puerperium
    O98.8 Other maternal infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium
       O98.81 Other maternal infectious and parasitic diseases complicating pregnancy
          O98. ​811 Other maternal infectious and parasitic diseases complicating pregnancy, first trimester
          O98.812 Other maternal infectious and parasitic diseases complicating pregnancy, second trimester
          O98.813 Other maternal infectious and parasitic diseases complicating pregnancy, third trimester
          O98.819 Other maternal infectious and parasitic diseases complicating pregnancy, unspecified trimester
       O98.82 Other maternal infectious and parasitic diseases complicating childbirth
       O98.83 Other maternal infectious and parasitic diseases complicating the puerperium
    O98.9 Unspecified maternal infectious and parasitic disease complicating pregnancy, childbirth and the puerperium
       O98.91 Unspecified maternal infectious and parasitic disease complicating pregnancy
          O98.911 Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester
          O98.912 Unspecified maternal infectious and parasitic disease complicating pregnancy, second trimester
          O98.913 Unspecified maternal infectious and parasitic disease complicating pregnancy, third trimester
          O98.919 Unspecified maternal infectious and parasitic disease complicating pregnancy, unspecified trimester
       O98.92 Unspecified maternal infectious and parasitic disease complicating childbirth
       O98.93 Unspecified maternal infectious and parasitic disease complicating the puerperium

## O99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperiumO99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

    Note: This category includes conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
    Use additional code to identify specific condition.
    Excludes2: when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)
    O99.0 Anemia complicating pregnancy, childbirth and the puerperium
       Conditions ​in D50-D64
       Excludes1: anemia arising in the puerperium (O90.81)
          postpartum anemia NOS (O90.81)
       O99.01 Anemia complicating pregnancy
          O99.011 Anemia complicating pregnancy, first trimester
          O99.012 Anemia complicating pregnancy, second trimester
          O99.013 Anemia complicating pregnancy, third trimester
          O99.019 Anemia complicating pregnancy, unspecified trimester
       O99.02 Anemia complicating childbirth
       O99.03 Anemia complicating the puerperium
          Excludes1: postpartum anemia not pre-existing prior to delivery (O90-.81)
    O99.1 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium
       Conditions in D65-D89
       Excludes2: hemorrhage with coagulation defects (O45.-, O46.0-, O67.0, O72.3)
       O99.11 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy
          O99.111 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, first trimester
          O99.112 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester
          O99.113 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, third trimester
          O99.119 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, unspecified trimester
       O99.12 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating childbirth
       O99. ​13 Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating the puerperium
    O99.2 Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium
       Conditions in E00-E90
       Excludes2: diabetes mellitus (O24.-)
          malnutrition (O25.-)
          postpartum thyroiditis (O90.5)
       O99.21 Obesity complicating pregnancy, childbirth, and the puerperium
          Use additional code to identify the type of obesity (E66.-)
          O99.210 Obesity complicating pregnancy, unspecified trimester
          O99.211 Obesity complicating pregnancy, first trimester
          O99.212 Obesity complicating pregnancy, second trimester
          O99.213 Obesity complicating pregnancy, third trimester
          O99.214 Obesity complicating childbirth
          O99.215 Obesity complicating the puerperium
       O99.28 Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium
          O99.280 Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester
          O99.281 Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester
          O99.282 Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester
          O99.283 Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester
          O99.284 Endocrine, nutritional and metabolic diseases complicating childbirth
          O99.285 Endocrine, nutritional and metabolic diseases complicating the puerperium
    O99.3 Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium
       O99.31 Alcohol use complicating pregnancy, childbirth, and the puerperium
          Use additional code(s) from F10 to identify manifestations of the alcohol use
          O99. ​310 Alcohol use complicating pregnancy, unspecified trimester
          O99.311 Alcohol use complicating pregnancy, first trimester
          O99.312 Alcohol use complicating pregnancy, second trimester
          O99.313 Alcohol use complicating pregnancy, third trimester
          O99.314 Alcohol use complicating childbirth
          O99.315 Alcohol use complicating the puerperium
       O99.32 Drug use complicating pregnancy, childbirth, and the puerperium
          Use additional code(s) from F11-F16 and F18-F19 to identify manifestations of the drug use
          O99.320 Drug use complicating pregnancy, unspecified trimester
          O99.321 Drug use complicating pregnancy, first trimester
          O99.322 Drug use complicating pregnancy, second trimester
          O99.323 Drug use complicating pregnancy, third trimester
          O99.324 Drug use complicating childbirth
          O99.325 Drug use complicating the puerperium
       O99.33 Smoking (tobacco) complicating pregnancy, childbirth, and the puerperium
          Use additional code from F17 to identify type of tobacco
          O99.330 Smoking (tobacco) complicating pregnancy, unspecified trimester
          O99.331 Smoking (tobacco) complicating pregnancy, first trimester
          O99.332 Smoking (tobacco) complicating pregnancy, second trimester
          O99.333 Smoking (tobacco) complicating pregnancy, third trimester
          O99.334 Smoking (tobacco) complicating childbirth
          O99.335 Smoking (tobacco) complicating the puerperium
       O99.34 Other mental disorders complicating pregnancy, childbirth, and the puerperium
          Conditions in F00-F09 and F20-F99
          Excludes2: postpartum mood disturbance (O90.6)
             postnatal psychosis (F53)
             puerperal psychosis (F53)
          O99.340 Other mental disorders complicating pregnancy, unspecified trimester
          O99. ​341 Other mental disorders complicating pregnancy, first trimester
          O99.342 Other mental disorders complicating pregnancy, second trimester
          O99.343 Other mental disorders complicating pregnancy, third trimester
          O99.344 Other mental disorders complicating childbirth
          O99.345 Other mental disorders complicating the puerperium
       O99.35 Diseases of the nervous system complicating pregnancy, childbirth, and the puerperium
          Conditions in G00-G99
          Excludes2: pregnancy related peripheral neuritis (O26.8-)
          O99.350 Diseases of the nervous system complicating pregnancy, unspecified trimester
          O99.351 Diseases of the nervous system complicating pregnancy, first trimester
          O99.352 Diseases of the nervous system complicating pregnancy, second trimester
          O99.353 Diseases of the nervous system complicating pregnancy, third trimester
          O99.354 Diseases of the nervous system complicating childbirth
          O99.355 Diseases of the nervous system complicating the puerperium
    O99.4 Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium
       Conditions in I00-I99
       Excludes1: peripartum cardiomyopathy (O90.3)
       Excludes2: hypertensive disorders (O10-O16)
          obstetric embolism (O88.-)
          venous complications and cerebrovenous sinus thrombosis in:
          labor, childbirth and the puerperium (O87.-)
          pregnancy (O22.-)
       O99.41 Diseases of the circulatory system complicating pregnancy
          O99.411 Diseases of the circulatory system complicating pregnancy, first trimester
          O99.412 Diseases of the circulatory system complicating pregnancy, second trimester
          O99.413 Diseases of the circulatory system complicating pregnancy, third trimester
          O99. ​419 Diseases of the circulatory system complicating pregnancy, unspecified trimester
       O99.42 Diseases of the circulatory system complicating childbirth
       O99.43 Diseases of the circulatory system complicating the puerperium
    O99.5 Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium
       Conditions in J00-J99
       O99.51 Diseases of the respiratory system complicating pregnancy
          O99.511 Diseases of the respiratory system complicating pregnancy, first trimester
          O99.512 Diseases of the respiratory system complicating pregnancy, second trimester
          O99.513 Diseases of the respiratory system complicating pregnancy, third trimester
          O99.519 Diseases of the respiratory system complicating pregnancy, unspecified trimester
       O99.52 Diseases of the respiratory system complicating childbirth
       O99.53 Diseases of the respiratory system complicating the puerperium
    O99.6 Diseases of the digestive system complicating pregnancy, childbirth and the puerperium
       Conditions in K00-K93
       Excludes2: liver disorders in pregnancy, childbirth and the puerperium (O26.6)
       O99.61 Diseases of the digestive system complicating pregnancy
          O99.611 Diseases of the digestive system complicating pregnancy, first trimester
          O99.612 Diseases of the digestive system complicating pregnancy, second trimester
          O99.613 Diseases of the digestive system complicating pregnancy, third trimester
          O99.619 Diseases of the digestive system complicating pregnancy, unspecified trimester
       O99.62 Diseases of the digestive system complicating childbirth
       O99.63 Diseases of the digestive system complicating the puerperium
    O99. ​7 Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperium
       Conditions in L00-L99
       Excludes2: herpes gestationis (O26.4)
          pruritic urticarial papules and plaques of pregnancy (PUPPP) (O26.86)
       O99.71 Diseases of the skin and subcutaneous tissue complicating pregnancy
          O99.711 Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester
          O99.712 Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester
          O99.713 Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester
          O99.719 Diseases of the skin and subcutaneous tissue complicating pregnancy, unspecified trimester
          O99.72 Diseases of the skin and subcutaneous tissue complicating childbirth
       O99.73 Diseases of the skin and subcutaneous tissue complicating the puerperium
    O99.8 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium
       Conditions in D00-D48, H00-H95, M00-N99, and Q00-Q99
       Use additional code to identify condition
       Excludes2: genitourinary infections in pregnancy (O23.-)
          infection of genitourinary tract following delivery (O86.1-O86.3)
          malignant neoplasms in pregnancy (O94.1-)
          maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)
          postpartum acute kidney failure (O90.4)
          traumatic injuries in pregnancy (O94.2-)
       O99.81 Abnormal glucose complicating pregnancy, childbirth and the puerperium
          Excludes1: gestational diabetes (O24.4-)
          O99.810 Abnormal glucose complicating pregnancy
          O99.814 Abnormal glucose complicating childbirth
          O99.815 Abnormal glucose complicating the puerperium
       O99.82 Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium
          O99. ​820 Streptococcus B carrier state complicating pregnancy
          O99.824 Streptococcus B carrier state complicating childbirth
          O99.825 Streptococcus B carrier state complicating the puerperium
       O99.83 Other infection carrier state complicating pregnancy, childbirth and the puerperium
          Use additional code to identify the carrier state (Z22.-)
          O99.830 Other infection carrier state complicating pregnancy
          O99.834 Other infection carrier state complicating childbirth
          O99.835 Other infection carrier state complicating the puerperium
       O99.84 Bariatric surgery status complicating pregnancy, childbirth and the puerperium
          Gastric banding status complicating pregnancy, childbirth and the puerperium
          Gastric bypass status for obesity complicating pregnancy, childbirth and the puerperium
          Obesity surgery status complicating pregnancy, childbirth and the puerperium
          O99.840 Bariatric surgery status complicating pregnancy, unspecified trimester
          O99.841 Bariatric surgery status complicating pregnancy, first trimester
          O99.842 Bariatric surgery status complicating pregnancy, second trimester
          O99.843 Bariatric surgery status complicating pregnancy, third trimester
          O99.844 Bariatric surgery status complicating childbirth
          O99.845 Bariatric surgery status complicating the puerperium
       O99.89 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium

## O9A Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperiumO9A Maternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperium

    O9A.1 Malignant neoplasm complicating pregnancy, childbirth and the puerperium
       Conditions in C00-C97
       Use additional code to identify neoplasm
       Excludes2: maternal care for benign tumor of corpus uteri (O34.1-)
          maternal ​care for benign tumor of cervix (O34.4-)
       O9A.11 Malignant neoplasm complicating pregnancy
          O9A.111 Malignant neoplasm complicating pregnancy, first trimester
          O9A.112 Malignant neoplasm complicating pregnancy, second trimester
          O9A.113 Malignant neoplasm complicating pregnancy, third trimester
          O9A.119 Malignant neoplasm complicating pregnancy, unspecified trimester
       O9A.12 Malignant neoplasm complicating childbirth
       O9A.13 Malignant neoplasm complicating the puerperium
    O9A.2 Injury, poisoning and certain other consequences of external causes complicating pregnancy, childbirth and the puerperium
       Conditions in S00-T98, except T74 and T76
       Use additional code(s) to identify the injury or poisoning
       Excludes2: physical, sexual and psychological abuse complicating pregnancy, childbirth and the puerperium (O94.3, O94.4, O94.5)
       O9A.21 Injury, poisoning and certain other consequences of external causes complicating pregnancy
          O9A.211 Injury, poisoning and certain other consequences of external causes complicating pregnancy, first trimester
          O9A.212 Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester
          O9A.213 Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester
          O9A.219 Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester
       O9A.22 Injury, poisoning and certain other consequences of external causes complicating childbirth
       O9A.23 Injury, poisoning and certain other consequences of external causes complicating the puerperium
    O9A.3 Physical abuse complicating pregnancy, childbirth and the puerperium
       Conditions in T74.11 or T76.11
       Use additional code (if applicable):
          to identify any associated current injury due to physical abuse
          to identify the perpetrator of abuse (Y07.-)
       Excludes2: ​sexual abuse complicating pregnancy, childbirth and the puerperium (O94.4-)
       O9A.31 Physical abuse complicating pregnancy
          O9A.311 Physical abuse complicating pregnancy, first trimester
          O9A.312 Physical abuse complicating pregnancy, second trimester
          O9A.313 Physical abuse complicating pregnancy, third trimester
          O9A.319 Physical abuse complicating pregnancy, unspecified trimester
       O9A.32 Physical abuse complicating childbirth
       O9A.33 Physical abuse complicating the puerperium
    O9A.4 Sexual abuse complicating pregnancy, childbirth and the puerperium
       Conditions in T74.21 or T76.21
       Use additional code (if applicable):
          to identify any associated current injury due to sexual abuse
          to identify the perpetrator of abuse (Y07.-)
       O9A.41 Sexual abuse complicating pregnancy
          O9A.411 Sexual abuse complicating pregnancy, first trimester
          O9A.412 Sexual abuse complicating pregnancy, second trimester
          O9A.413 Sexual abuse complicating pregnancy, third trimester
          O9A.419 Sexual abuse complicating pregnancy, unspecified trimester
       O9A.42 Sexual abuse complicating childbirth
       O9A.43 Sexual abuse complicating the puerperium
    O9A.5 Psychological abuse complicating pregnancy, childbirth and the puerperium
       Conditions in T74.31 or T76.31
       Use additional code to identify the perpetrator of abuse (Y07.-)
       O9A.51 Psychological abuse complicating pregnancy
          O9A.511 Psychological abuse complicating pregnancy, first trimester
          O9A.512 Psychological abuse complicating pregnancy, second trimester
          O9A.513 Psychological abuse complicating pregnancy, third trimester
          O9A.519 Psychological abuse complicating pregnancy, unspecified trimester
       O9A.52 Psychological abuse complicating childbirth
       O9A.53 Psychological abuse complicating thepuerperium