# List of ICD-9 codes 280–289: diseases of the blood and blood-forming organs

ICD-9 chapters :
| Chapter | Block | Title |
| I | 001–139 | Infectious and Parasitic Diseases |
| II | 140–239 | Neoplasms |
| III | 240–279 | Endocrine, Nutritional and Metabolic Diseases, and Immunity Disorders |
| IV | 280–289 | Diseases of the Blood and Blood-forming Organs |
| V | 290–319 | Mental Disorders |
| VI | 320–389 | Diseases of the Nervous System and Sense Organs |
| VII | 390–459 | Diseases of the Circulatory System |
| VIII | 460–519 | Diseases of the Respiratory System |
| IX | 520–579 | Diseases of the Digestive System |
| X | 580–629 | Diseases of the Genitourinary System |
| XI | 630–679 | Complications of Pregnancy, Childbirth, and the Puerperium |
| XII | 680–709 | Diseases of the Skin and Subcutaneous Tissue |
| XIII | 710–739 | Diseases of the Musculoskeletal System and Connective Tissue |
| XIV | 740–759 | Congenital Anomalies |
| XV | 760–779 | Certain Conditions originating in the Perinatal Period |
| XVI | 780–799 | Symptoms, Signs and Ill-defined Conditions |
| XVII | 800–999 | Injury and Poisoning |
| | E800–E999 | Supplementary Classification of External Causes of Injury and Poisoning |
| | V01–V82 | Supplementary Classification of Factors influencing Health Status and Contact with Health Services |
| | M8000–M9970 | Morphology of Neoplasms |
This is a shortened version of the fourth chapter of the ICD-9: Diseases of the Blood and Blood-forming Organs. It covers ICD codes 280 to 289. The full chapter can be found on pages 167 to 175 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1. Both volumes can be downloaded for free from the website of the World Health Organization.

## Anemia (280–285)

* 280 Iron deficiency anemias
** 280.0 Iron deficiency anemia secondary to blood loss (chronic)
** 280.1 Iron deficiency anemia secondary to inadequate dietary iron intake
** 280.8 Other specified iron deficiency anemias
** 280.9 Iron deficiency anemia, unspecified
* 281 Other deficiency anemias
** 281.0 pernicious anemia
** 281.2 Anemia, folate deficiency
** 281.3 Other specified megaloblastic anemias, not elsewhere classified
* 282 Hereditary hemolytic anemias
** 282.0 Hereditary spherocytosis
** 282.2 G6PD
** 282.5 Sickle-cell trait
** 282.6 Sickle-cell anemia
* 283 Acquired hemolytic anemias
** 283.0 Autoimmune hemolytic anemias
*** Warm autoimmune hemolytic anemia
** 283.1 Non-autoimmune hemolytic anemias
** 283.2 Hemoglobinuria due to hemolysis from external causes
*** Paroxysmal nocturnal hemoglobinuria
* 284 Aplastic anemia
** 284.0 Constitutional aplastic anemia
*** 284.01 Constitutional red blood cell aplasia
*** 284.09 Other constitutional aplastic anemia
** 284.1 Pancytopenia
** 284.2 Myelophthisis
** 284.8 Other specified aplastic anemias
*** 284.81 Other specified aplastic anemias
*** 284.89 Red cell aplasia
** 284.9 Aplastic anemia unspecified
* 285 Other and unspecified anemias
** 285.0 Sideroblastic anemia
** 285.1 Acute posthemorrhagic anemia
** 285.2 Anemia in chronic illness
*** 285.21 Anemia in chronic kidney disease
*** 285.22 Anemia in neoplastic disease
*** 285.29 Anemia of other chronic illness
** 285.3 Antineoplastic chemotherapy induced anemia
** 285.8 Other specified anemias
** 285.9 Anemia unspecified

## Coagulation/hemorrhagic (286–287)

* 286 Coagulation defects
** 286.0 Hemophilia A
** 286.1 Hemophilia B
** 286.2 Hemophilia C
** 286.3 Congenital deficiency of other clotting factors
*** Factor XIII deficiency
** 286.4 Von Willebrand's disease
** 286.5 Hemorrhagic disorder due to intrinsic anticoagulants
** 286.6 Defibrination syndrome
** 286.7 Acquired coagulation factor deficiency
** 286.9 Coagulation defects, other
* 287 Purpura and other hemorrhagic conditions
** 287.0 Allergic purpura
*** Henoch–Schönlein purpura
** 287.3 Thrombocytopenia, primary
*** 287.31 Immune thrombocytopenic purpura
**** Idiopathic thrombocytopenic purpura
** 287.4 Thrombocytopenia, secondary
** 287.9 Hemorrhagic conditions, unspec.

## Other (288–289)

* 288 Diseases of white blood cells
** 288.0 Leukopenia
** 288.1 Functional disorders of polymorphonuclear neutrophils
** 288.2 Genetic anomalies of leukocytes
** 288.3 Eosinophilia
** 288.4 Hemophagocytic syndromes
** 288.5 Decreased white blood cell count
*** 288.50 Leukocytopenia, unspecified
*** 288.51 Lymphocytopenia
** 288.6 Elevated white blood cell count
*** 288.60 Leukocytosis, unspecified
*** 288.61 Lymphocytosis (symptomatic)
*** 288.62 Leukemoid reaction
*** 288.63 Monocytosis (symptomatic)
*** 288.64 Plasmacytosis
*** 288.65 Basophilia
*** 288.66 Bandemia
** 288.8 Other specified disease of white blood cells
** 288.9 Abnormal white blood cells, unspec.
* 289 Other diseases of blood and blood-forming organs
** 289.0 Secondary polycythemia
** 289.1 Chronic lymphadenitis
** 289.2 Nonspecific mesenteric lymphadenitis
** 289.3 Lymphadenitis unspecified except mesenteric
** 289.4 Hypersplenism
** 289.5 Other diseases of spleen
*** 289.50 Disease of spleen unspecified
*** 289.51 Chronic congestive splenomegaly
*** 289.52 Splenic sequestration
*** 289.53 Neutropenic splenomegaly
*** 289.59 Other diseases of spleen
** 289.6 Familial polycythemia
** 289.7 Methemoglobinemia
** 289.8 Other specified diseases of blood and blood-forming organs
*** 289.81 Primary hypercoagulable state
*** 289.82 Secondary hypercoagulable state
*** 289.83 Myelofibrosis
*** 289.84 Heparin-induced thrombocytopenia
*** 289.89 Other specified diseases of blood and blood-forming organs
** 289.9 Unspecified diseases of blood and blood-forming organs