III.  ENDOCRINE, NUTRITIONAL AND METABOLIC DISEASES, AND
                            IMMUNITY DISORDERS

Excludes:    endocrine and metabolic disturbances specific to the fetus and
                  newborn (775.-)

Note:   All neoplasms, whether functionally active or not, are classified in
        Chapter 2. Codes in Chapter 3 (i.e., 242.8, 246.0, 251-253, 255-259)
        may be used, if desired, to identify such functional activity
        associated with any neoplasm, or by ectopic endocrine tissue.

                DISORDERS OF THYROID GLAND (240-246)

240     Simple and unspecified goiter

240.0   Goiter, specified as simple

Includes:    conditions in 240.9, specified as simple

240.9   Goiter, unspecified

Enlargement of thyroid
Goiter or struma:
    NOS
    diffuse colloid
    endemic
    hyperplastic
    parenchymatous

Excludes:    congenital (dyshormonogenic) goiter (246.1)

241     Nontoxic nodular goiter

Excludes:    adenoma of thyroid (226)
             cystadenoma of thyroid (226)

241.0   Nontoxic uninodular goiter

Thyroid nodule                    Uninodular goiter (nontoxic)

241.1   Nontoxic multinodular goiter

Multinodular goiter (nontoxic)

241.9   Unspecified

Adenomatous goiter                Struma nodosa (simplex)
Nodular goiter (nontoxic) NOS

242     Thyrotoxicosis with or without goiter

Excludes:    neonatal thyrotoxicosis (775.3)

                          ICD-9/Ch03.TXT - pg. 1

242.0   Toxic diffuse goiter

Exophthalmic or toxic goiter NOS

242.1   Toxic uninodular goiter

Thyroid nodule, toxic or with hyperthyroidism
Uninodular goiter, toxic or with hyperthyroidism

242.2   Toxic multinodular goiter

242.3   Toxic nodular goiter, unspecified

Any condition in 241.9 specified as toxic or with hyperthyroidism

242.4   Thyrotoxicosis from ectopic thyroid nodule

242.8   Thyrotoxicosis of other specified origin

Overproduction of thyroid-stimulating hormone
Thyrotoxicosis:
    factitia
    from ingestion of excessive thyroid material

Use additional E code, if desired, to identify cause, if drug-induced

242.9   Thyrotoxicosis without mention of goiter or other cause

Hyperthyroidism NOS

243     Congenital hypothyroidism

Congenital thyroid insufficiency
Cretinism

Use additional code, if desired, to identify associated mental retardation

Excludes:    congenital (dyshormonogenic) goiter (246.1)

244     Acquired hypothyroidism

[Not to be used for underlying cause of death]

Includes:    hypothyroidism (acquired)
             myxedema (adult) (juvenile)

244.0   Postsurgical hypothyroidism

244.1   Other postablative hypothyroidism

Hypothyroidism following therapy, such as irradiation

                          ICD-9/Ch03.TXT - pg. 2

244.2   Iodine hypothyroidism

Hypothyroidism resulting from administration or ingestion of iodide

Use additional E code, if desired, to identify drug

244.3   Other iatrogenic hypothyroidism

Hypothyroidism resulting from:
    P-aminosalicylic acid [PAS]
    Phenylbutazone
    Resorcinol

Use additional E code, if desired, to identify drug

244.8   Other

244.9   Unspecified hypothyroidism

Hypothyroidism, primary or NOS
Myxedema, primary or NOS

245     Thyroiditis

245.0   Acute thyroiditis

Abscess of thyroid
Thyroiditis:
    pyogenic
    suppurative

Use additional code, if desired, to identify organism

245.1   Subacute thyroiditis

Thyroiditis:
    de Quervain's
    giant-cell
    granulomatous

245.2   Chronic lymphocytic thyroiditis

Autoimmune thyroiditis
Lymphocytic thyroiditis (chronic)
Hashimoto's disease
Struma lymphomatosa

245.3   Chronic fibrous thyroiditis

Thyroiditis:
    ligneous
    Riedel's

                          ICD-9/Ch03.TXT - pg. 3

245.4   Iatrogenic thyroiditis

Use additional code, if desired, to identify cause

245.8   Other and unspecified chronic thyroiditis

Chronic thyroiditis NOS

245.9   Unspecified

Thyroiditis NOS

246     Other disorders of thyroid

246.0   Disorders of thyrocalcitonin secretion

Hypersecretion of calcitonin or thyrocalcitonin

246.1   Dyshormonogenic goiter

Congenital goiter
Goiter due to enzyme defect in synthesis of thyroid hormone

246.2   Cyst of thyroid

Excludes:    cystadenoma (226)

246.3   Hemorrhage and infarction of thyroid

246.8   Other

Abnormality of thyroid-binding globulin
Atrophy of thyroid

246.9   Unspecified

                   DISEASES OF OTHER ENDOCRINE GLANDS (250-259)

250     Diabetes mellitus

Excludes:    neonatal diabetes mellitus (775.1)
             nonclinical diabetes (790.2)
             when complicating pregnancy, childbirth, or the puerperium
                  (648.0)

250.0   Diabetes mellitus without mention of complication

Diabetes mellitus without mention of complication or manifestation
    classifiable to 250.1-250.9
Diabetes (mellitus) NOS

                          ICD-9/Ch03.TXT - pg. 4

250.1   Diabetes with ketoacidosis

Diabetic:
    acidosis without mention of coma
    ketosis without mention of coma

250.2   Diabetes with coma

Diabetic coma (with ketoacidosis)
Diabetes with hyperosmolar coma

250.3   Diabetes with renal manifestations

Diabetic nephropathy
Intercapillary glomerulosclerosis
Kimmelstiel-Wilson syndrome

250.4   Diabetes with ophthalmic manifestations

Diabetic:
    cataract
    retinopathy

250.5   Diabetes with neurological manifestations

Diabetic:                         Diabetic polyneuropathy
    amyotrophy
    mononeuropathy

250.6   Diabetes with peripheral circulatory disorders

Diabetic:
    gangrene
    peripheral angiopathy

250.7   Diabetes with other specified manifestations

Excludes:    intercurrent infections in diabetic patients

250.9   Diabetes with unspecified complications

251     Other disorders of pancreatic internal secretion

251.0   Hypoglycemic coma

Iatrogenic hyperinsulinism
Insulin coma

Use additional E code, if desired, to identify cause, if drug-induced

251.1   Other hyperinsulinism

                          ICD-9/Ch03.TXT - pg. 5

Hyperinsulinism:                  Hyperplasia of pancreatic islet beta cells
    NOS                               NOS
    ectopic
    functional

251.2   Hypoglycemia, unspecified

251.3   Postsurgical hypoinsulinemia

[Not to be used for underlying cause of death]

Postpancreatectomy hyperglycemia

251.4   Abnormality of secretion of glucagon

Hyperplasia of pancreatic islet alpha cells with glucagon excess

251.5   Abnormality of secretion of gastrin

Hyperplasia of pancreatic alpha cells with
    gastrin excess
Zollinger-Ellison syndrome

251.8   Other

251.9   Unspecified

Islet cell hyperplasia NOS

252     Disorders of parathyroid gland

252.0   Hyperparathyroidism

Hyperplasia of parathyroid
Osteitis fibrosa cystica generalisata [von Recklinghausen's disease of bone]

Excludes:    secondary hyperparathyroidism (of renal origin) (588.8)

252.1   Hypoparathyroidism

Parathyroiditis (autoimmune)
Tetany:
    parathyroid
    parathyroprival

Excludes:    pseudohypoparathyroidism (275.4)
             pseudopseudohypoparathyroidism (275.4)
             tetany NOS (781.7)
             transitory neonatal hypoparathyroidism (775.4)

252.8   Other

252.9   Unspecified
                          ICD-9/Ch03.TXT - pg. 6

253     Disorders of the pituitary gland and its hypothalamic control

Includes:    the listed conditions whether the disorder is in the pituitary
                  or the hypothalamus

Excludes:    Cushing's syndrome (255.0)

253.0   Acromegaly and gigantism

Arthropathy associated with acromegaly
Overproduction of growth hormone

253.1   Other anterior pituitary hyperfunction

Excludes:    overproduction of:
                  ACTH (255.3)
                  thyroid-stimulating hormone (242.8)

253.2   Panhypopituitarism

Cachexia, pituitary
Necrosis of pituitary (post-partum)
Pituitary insufficiency NOS
Sheehan's syndrome
Simmonds's disease

Excludes:    iatrogenic hypopituitarism (253.7)

253.3   Pituitary dwarfism

Isolated deficiency of growth hormone
Lorain-Levi dwarfism

253.4   Other anterior pituitary disorders

Isolated or partial deficiency of an anterior pituitary hormone, other than
    growth hormone

253.5   Diabetes insipidus

Excludes:    nephrogenic diabetes insipidus (588.1)

253.6   Other disorders of neurohypophysis

Syndrome of inappropriate secretion of antidiuretic hormone

253.7   Iatrogenic pituitary disorders

Hypopituitarism:
    hormone-induced
    hypophysectomy-induced
    radiotherapy-induced

                          ICD-9/Ch03.TXT - pg. 7

Use additional E code, if desired, to identify cause

253.8   Other disorders of the pituitary and other syndromes of
        diencephalohypophyseal origin

Abscess of pituitary              Cyst of Rathke's pouch
Adiposogenital dystrophy          Frhlich's syndrome

253.9   Unspecified

Dyspituitarism

254     Diseases of thymus gland

Excludes:    aplasia or dysplasia with immunodeficiency (279.2)
             myasthenia gravis (358.0)

254.0   Persistent hyperplasia of thymus

Hypertrophy of thymus

254.1   Abscess of thymus

254.8   Other

254.9   Unspecified

255     Disorders of adrenal glands

Includes:    the listed conditions whether the basic disorder is in the
                  adrenals or is pituitary induced

255.0   Cushing's syndrome:

Cushing's syndrome:
    NOS
    iatrogenic
    idiopathic
    pituitary-dependent
Ectopic ACTH syndrome
Overproduction of cortisol

Use additional E code, if desired, to identify cause, if drug-induced

255.1   Hyperaldosteronism

Conn's syndrome

255.2   Adrenogenital disorders

Adrenogenital syndromes, virilizing or feminizing, whether acquired or
    associated with congenital adrenal hyperplasia consequent on inborn
    enzyme defects in hormone synthesis
                          ICD-9/Ch03.TXT - pg. 8

Adrenogenital syndrome
Female adrenal pseudohermaphroditism
Male:
   macrogenitosomia praecox
   sexual precocity with adrenal hyperplasia
Virilization (female)

255.3   Other corticoadrenal overactivity

Overproduction of ACTH

255.4   Corticoadrenal insufficiency

Addisonian crisis
Addison's disease:
    NOS
    tuberculous
Adrenal:
    atrophy (autoimmune)
    calcification
    crisis
    hemorrhage
    infarction
    insufficiency NOS

255.5   Other adrenal hypofunction

255.6   Medulloadrenal hyperfunction

Catecholamine secretion by pheochromocytoma

Note:   Not to be used as the primary code for phaeochromocytoma.
        See note at beginning of Chapter III.

255.8   Other

Abnormality of cortisol-binding globulin

255.9   Unspecified

256     Ovarian dysfunction

256.0   Hyperestrogenism

256.1   Other ovarian hyperfunction

Hypersecretion of ovarian androgens

256.2   Postablative ovarian failure

Ovarian failure:
    iatrogenic
    postirradiation
    postsurgical
                          ICD-9/Ch03.TXT - pg. 9

256.3   Other ovarian failure

Premature menopause NOS           Primary ovarian failure

256.4   Polycystic ovaries

Stein-Leventhal syndrome

256.8   Other

256.9   Unspecified

257     Testicular dysfunction

257.0   Testicular hyperfunction

Hypersecretion of testicular hormones

257.1   Postablative testicular hypofunction

Testicular hypofunction:
    iatrogenic
    postirradiation
    postsurgical

257.2   Other testicular hypofunction

Defective biosynthesis of testicular androgen
Testicular hypogonadism

Excludes:    azoospermia (606.0)

257.8   Other

Goldberg-Maxwell syndrome
Male pseudohermaphroditism with testicular feminization
Testicular feminization

257.9   Unspecified

258     Polyglandular dysfunction and related disorders

258.0   Polyglandular activity in multiple endocrine adenomatosis

Wermer's syndrome

Note:   Not to be used as the primary code for multiple endocrine
        adenomatosis.  See note at beginning of Chapter III.

258.1   Other combinations of endocrine dysfunction

Lloyd's syndrome                  Schmidt's syndrome
                          ICD-9/Ch03.TXT - pg. 10

258.8   Other

258.9   Polyglandular dysfunction, unspecified

259     Other endocrine disorders

259.0   Delay in sexual development and puberty, not elsewhere classified

Delayed puberty

259.1   Precocious sexual development and puberty, not elsewhere classified

Sexual precocity:
    NOS
    constitutional
    cryptogenic
    idiopathic

259.2   Carcinoid syndrome

Hormone secretion by carcinoid tumors

Note:   Not to be used as the primary code for carcinoid tumor.
        See note at beginning of Chapter III.

259.3   Ectopic hormone secretion, not elsewhere classified

259.4   Dwarfism, not elsewhere classified

Dwarfism:
    NOS
    constitutional

Excludes:    dwarfism:
                  achondroplastic (756.4)
                  intrauterine (759.7)
                  nutritional (263.2)
                  pituitary (253.3)
                  renal (588.0)
             progeria (259.8)

259.8   Other

Pineal gland dysfunction          Werner's syndrome
Progeria

259.9   Unspecified

Disturbance:
    endocrine NOS
    hormone NOS
Infantilism NOS

                          ICD-9/Ch03.TXT - pg. 11

                     NUTRITIONAL DEFICIENCIES (260-269)

Excludes:    deficiency anemias (280.-, 281.-)

260     Kwashiorkor

Nutritional edema with dyspigmentation of skin and hair

261     Nutritional marasmus

Nutritional atrophy
Severe calorie deficiency
Severe malnutrition NOS

262     Other severe protein-calorie malnutrition

Malnutrition of third degree according to Gomez classification [weight for
    age less than 60% of standard]
Nutritional edema without mention of dyspigmentation of skin and hair

263     Other and unspecified protein-calorie malnutrition

263.0   Malnutrition of moderate degree

Malnutrition of second degree according to Gomez classification [weight for
    age 60% to less than 75% of standard]

263.1   Malnutrition of mild degree

Malnutrition of first degree according to Gomez classification [weight for
    age 75% to less than 90% of standard]

263.2   Arrested development following protein-calorie malnutrition

Nutritional dwarfism              Physical retardation due to malnutrition

263.8   Other protein-calorie malnutrition

263.9   Unspecified

Dystrophy due to malnutrition     Malnutrition (calorie) NOS

Excludes:    nutritional deficiency NOS (269.9)

264     Vitamin A deficiency

264.0   With conjunctival xerosis

264.1   With conjunctival xerosis and Bitot's spot

Bitot's spot in the young child

264.2   With corneal xerosis
                          ICD-9/Ch03.TXT - pg. 12

264.3   With corneal ulceration and xerosis

264.4   With keratomalacia

264.5   With night blindness

264.6   With xerophthalmic scars of cornea

264.7   Other ocular manifestations of vitamin A deficiency

Xerophthalmia due to vitamin A deficiency

264.8   Other manifestations of vitamin A deficiency

Follicular keratosis due to vitamin A deficiency
Xeroderma due to vitamin A deficiency

264.9   Unspecified

Hypovitaminosis A NOS

265     Thiamine and niacin deficiency states

265.0   Beriberi

265.1   Other and unspecified manifestations of thiamine deficiency

Other vitamin B1 deficiency states

265.2   Pellagra

Deficiency:
    niacin (-tryptophan)
    nicotinamide
    nicotinic acid
    vitamin PP
Pellagra (alcoholic)

266     Deficiency of B-complex components

266.0   Ariboflavinosis

Riboflavin deficiency

266.1   Vitamin B6 deficiency

Deficiency:
    pyridoxal
    pyridoxamine
    pyridoxine
Vitamin B6 deficiency syndrome

Excludes:    vitamin B6-responsive sideroblastic anemia (285.0)
                          ICD-9/Ch03.TXT - pg. 13


266.2   Other B-complex deficiencies

Deficiency:
    cyanocobalamin
    folic acid
    vitamin B12

Excludes:    deficiency anemias (281.-)

266.9   Unspecified vitamin B deficiency

267     Ascorbic acid deficiency

Deficiency of vitamin C           Scurvy

Excludes:    scorbutic anemia (281.8)

268     Vitamin D deficiency

Excludes:    vitamin D-resistant rickets and osteomalacia (275.3)

268.0   Rickets, active

Excludes:    coeliac rickets (579.0)
             renal rickets (588.0)

268.1   Rickets, late effect

Any condition specified as rachitic or due to rickets and present one year
    or more after onset, or stated to be a late effect or sequela of rickets

268.2   Osteomalacia

268.9   Unspecified

Avitaminosis D

269     Other nutritional deficiencies

269.0   Deficiency of vitamin K

Excludes:    deficiency of coagulation factor due to vitamin K deficiency
                  (286.7)
             vitamin K deficiency of newborn (776.0)

269.1   Deficiency of other vitamins

Deficiency:
    vitamin E
    vitamin P

269.2   Unspecified vitamin deficiency
                          ICD-9/Ch03.TXT - pg. 14

269.3   Mineral deficiency, not elsewhere classified

Excludes:    deficiency:
                  potassium (276.8)
                  sodium (276.1)

269.8   Other nutritional deficiency

Excludes:    failure to thrive (783.4)
             feeding problems (783.3)
                  newborn (779.3)

269.9   Unspecified

        OTHER METABOLIC DISORDERS AND IMMUNITY DISORDERS (270-279)

Use additional code, if desired, to identify any associated mental
retardation

270     Disorders of amino-acid transport and metabolism

Excludes:    abnormal findings without manifest disease (791-796)
             disorders of purine and pyrimidine metabolism (277.2)
             gout (274.-)

270.0   Disturbances of amino-acid transport

Cystinosis                        Glycinuria (renal)
Cystinuria                        Hartnup disease
Fanconi (-de Toni) (-Debr82) syndrome

270.1   Phenylketonuria

Hyperphenylalaninemia

270.2   Other disturbances of aromatic amino-acid metabolism

Albinism                          Hypertyrosinemia
Alkaptonuria                      Oasthouse urine disease
Disturbances of metabolism of     Ochronotic arthritis
    tyrosine and tryptophan       Tyrosinosis
Hydroxykynureninuria              Tyrosinuria

Excludes:    vitamin B6-deficiency syndrome (266.1)

270.3   Disturbances of branched-chain amino-acid metabolism

Disturbances of metabolism of leucine, isoleucine, and valine
Hypervalinemia
Leucinosis
Maple syrup urine disease
                          ICD-9/Ch03.TXT - pg. 15

270.4   Disturbances of sulphur-bearing amino-acid metabolism

Cystathioninuria                  Homocystinuria
Disturbances of metabolism of     Hypermethioninemia
    methionine, homocystine,
    and cystathionine

270.5   Disturbances of histidine metabolism

Histidinemia
Hyperhistidinemia
Imidazole amino aciduria

270.6   Disorders of urea cycle metabolism

Argininosuccinic aciduria         Hyperammonemia
Citrullinemia                     Hyperornithinemia
Disorders of metabolism of
    ornithine, citrulline,
    argininosuccinic acid,
    arginine, and ammonia

270.7   Other disturbances of straight-chain amino-acid metabolism

Hyperglycinemia                   Other disturbances of metabolism of
Hyperlysinemia                         glycine, threonine, serine,
Pipecolic acidemia                     glutamine, and lysine
Saccharopinuria

270.8   Other

Ethanolaminuria                   Iminoacidopathy
Hydroxyprolinemia                 Sarcosinemia
Hyperprolinemia

270.9   Unspecified

271     Disorders of carbohydrate transport and metabolism

Excludes:    abnormality of secretion of glucagon (251.4)
             diabetes mellitus (250.-)
             hypoglycemia NOS (251.2)
             mucopolysaccharidosis (277.5)

271.0   Glycogenosis

Glycogen-storage disease

271.1   Galactosemia

271.2   Hereditary fructose intolerance

                          ICD-9/Ch03.TXT - pg. 16

271.3   Intestinal disaccharidase deficiencies and disaccharide malabsorption

Intolerance or malabsorption (congenital):
    glucose-galactose
    lactose
    sucrose-isomaltose

271.4   Renal glycosuria

Renal diabetes

271.8   Other

Hyperoxaluria (primary)           Oxalosis

271.9   Unspecified

272     Disorders of lipoid metabolism

Excludes:    localized cerebral lipidoses (330.1)

272.0   Pure hypercholesterolemia

Familial hypercholesterolemia
Fredrickson's Type IIa hyperlipoproteinemia
Hyper-beta-lipoproteinemia
Hyperlipidemia, Group A
Low-density-lipoid-type [LDL] hyperlipoproteinemia

272.1   Pure hyperglyceridemia

Endogenous hyperglyceridemia
Fredrickson's Type IV hyperlipoproteinemia
Hyperlipidemia, Group B
Hyper-pre-beta-lipoproteinemia
Hypertriglyceridemia, essential
Very-low-density-lipoid-type [VLDL] hyperlipoproteinemia

272.2   Mixed hyperlipidemia

Broad- or floating-beta-lipoproteinemia
Fredrickson's Type IIb or III hyperlipoproteinemia
Hypercholesterolemia with endogenous hyperglyceridemia
Hyper-beta-lipoproteinemia with pre-beta-lipoproteinemia
Hyperlipidaemia, Group C
Tubo-eruptive xanthoma
Xanthoma tuberosum

272.3   Hyperchylomicronemia

Fredrickson's type I or V         Hyperlipidemia, Group D
    hyperlipoproteinemia            Mixed hyperglyceridemia

                          ICD-9/Ch03.TXT - pg. 17

272.4   Other and unspecified hyperlipidemia

Alpha-lipoproteinemia             Hyperlipidemia NOS
Combined hyperlipidemia

272.5   Lipoprotein deficiencies

A-beta-lipoproteinemia            Hypo-beta-lipoproteinemia (familial
High-density lipoid deficiency    Lecithin cholesterol acyltransferase
Hypo-alpha-lipoproteinemia             deficiency
                                  Tangier disease

272.6   Lipodystrophy

Barraquer-Simons disease          Progressive lipodystrophy

Use additional E code, if desired, to identify cause, if iatrogenic

Excludes:    intestinal lipodystrophy (040.2)

272.7   Lipidoses

Chemically induced lipidosis      Disease:
Disease:                               pseudo-Hurler's or mucolipidosis III
    Anderson's                         Sandhoff's
    Fabry's                            triglyceride-storage, Type I or II
    Gaucher's                          Wolman's or triglyceride-storage,
    I-cell or mucolipidosis I          Type III
    lipoid-storage NOS            Mucolipidosis II
    Niemann-Pick                  Primary familial xanthomatosis

272.8   Other disorders of lipoid metabolism

Hoffa's disease or liposynovitis prepatellaris
Launois-Bensaude's lipomatosis

272.9   Unspecified disorders of lipoid metabolism

273     Disorders of plasma protein metabolism

Excludes:    agammaglobulinemia and hypogammaglobulinemia (279.-)
             coagulation defects (286.-)
             hereditary hemolytic anemias (282.-)

273.0   Polyclonal hypergammaglobulinemia

Waldenstrm's hypergammaglobulinemic purpura:

273.1   Monoclonal paraproteinemia

Monoclonal gammopathy:
    NOS
    associated with lymphoplasmacytic dyscrasias
                          ICD-9/Ch03.TXT - pg. 18

    benign
Paraproteinemia:
    benign (familial)
    secondary to malignant or inflammatory disease

273.2   Other paraproteinemias

Cryoglobulinemic:
    purpura
    vasculitis
Mixed cryoglobulinemia

273.3   Macroglobulinemia

Macroglobulinemia (idiopathic) (primary)
Waldenstrm's macroglobulinemia

273.8   Other

Abnormality of transport protein
Bisalbuminemia

273.9   Unspecified

274     Gout

Excludes:    lead gout (984.-)

274.0   Gouty arthropathy

274.1   Gouty nephropathy

Gouty nephropathy NOS             Uric acid nephrolithiasis

274.8   Gout with other manifestations

Gouty tophi of:
    ear
    heart

274.9   Gout, unspecified

275     Disorders of mineral metabolism

Excludes:    abnormal findings without clinical significance (790.-)

275.0   Disorders of iron metabolism

Hemochromatosis

Excludes:    anemia:
                  iron deficiency (280.-)
                  sideroblastic (285.0)
                          ICD-9/Ch03.TXT - pg. 19

275.1   Disorders of copper metabolism

Hepatolenticular degeneration     Wilson's disease

275.2   Disorders of magnesium metabolism

Hypermagnesemia                   Hypomagnesemia

275.3   Disorders of phosphorus metabolism

Familial hypophosphatemia
Hypophosphatasia
Vitamin D-resistant:
    osteomalacia
    rickets

275.4   Disorders of calcium metabolism

Calcinosis                        Nephrocalcinosis
Hypercalcemia                     Pseudohypoparathyroidism
Hypercalcinuria                   Pseudopseudohypoparathyroidism

Excludes:    parathyroid disorders (252.-)
             vitamin D deficiency (268.-)

275.8   Other

275.9   Unspecified

276     Disorders of fluid, electrolyte, and acid-base balance

Excludes:    diabetes insipidus (253.5)
             familial periodic paralysis (359.3)

276.0   Hyperosmolality and/or hypernatremia

Na excess                         Na overload

276.1   Hyposmolality and/or hyponatremia

Na deficiency

276.2   Acidosis

Acidosis:
    NOS
    lactic
    metabolic
    respiratory

Excludes:    diabetic acidosis (250.1)

                          ICD-9/Ch03.TXT - pg. 20

276.3   Alkalosis

Alkalosis:
    NOS
    metabolic
    respiratory

276.4   Mixed acid-base balance disorder

276.5   Volume depletion

Dehydration
Depletion of volume of plasma or extracellular fluid
Hypovolemia

Excludes:    hypovolemic shock:
                  postoperative (998.0)
                  traumatic (958.4)

276.6   Fluid overload

Fluid retention

276.7   Hyperpotassemia

K overload                        K excess

276.8   Hypopotassemia

K deficiency

276.9   Electrolyte and fluid disorders not elsewhere classified

Electrolyte imbalance             Hypochloremia
Hyperchloremia

Excludes:    electrolyte imbalance:
                  associated with hyperemesis gravidarum (643.1)
                  following abortion and ectopic or molar pregnancy
                       (634-638 with fourth digit .4, 639.4)

277     Other and unspecified disorders of metabolism

277.0   Cystic fibrosis

Fibrocystic disease of the pancreas
Mucoviscidosis

277.1   Disorders of porphyrin metabolism

Porphyria                         Porphyrinuria

277.2   Other disorders of purine and pyrimidine metabolism
                          ICD-9/Ch03.TXT - pg. 21

Hypoxanthine-guanine-phosphoribosyltransferase deficiency [HG-PRT deficiency]
Lesch-Nyhan syndrome

Excludes:    gout (274.-)
             oroticaciduric anemia (281.4)

277.3   Amyloidosis

Amyloidosis:
    NOS
    inherited systemic
    nephropathic
    neuropathic (Portuguese) (Swiss)
    secondary
    Familial Mediterranean fever
    Hereditary cardiac amyloid

277.4   Disorders of bilirubin excretion

Syndrome:
    Crigler-Najjar
    Dubin-Johnson
    Gilbert's
    Rotor's

Excludes:    hyperbilirubinemias specific to the perinatal period (774.-)

277.5   Mucopolysaccharidosis

Gargoylism                        Hurler's syndrome
Hunter's syndrome

277.6   Other deficiencies of circulating enzymes

Alpha 1-antitrypsin deficiency    Hereditary angioedema

277.8   Other

277.9   Unspecified

278     Obesity and other hyperalimentation

Excludes:    hyperalimentation NOS (783.6)
             poisoning by vitamin preparations (963.5)

278.0   Obesity

Excludes:    adiposogenital dystrophy (253.8)
             obesity of endocrine origin NOS (259.9)

278.1   Localized adiposity

Fat pad
                          ICD-9/Ch03.TXT - pg. 22

278.2   Hypervitaminosis A

278.3   Hypercarotinemia

278.4   Hypervitaminosis D

278.8   Other

279     Disorders involving the immune mechanism

279.0   Deficiency of humoral immunity

Agammaglobulinaemia:              Hypogammaglobulinaemia
    NOS
    brulous

279.1   Deficiency of cell-mediated immunity

Di George syndrome                Wiskott-Aldrich syndrome
Nezelof syndrome

Excludes:    ataxia-telangiectasia (334.8)

279.2   Combined immunity deficiency

Agammaglobulinemia, Swiss type
Combined immunity deficiency syndrome
Reticular dysgenesis
Thymic:
    alymphoplasia
    aplasia or dysplasia with immunodeficiency

279.3   Unspecified immunity deficiency

279.4   Autoimmune disease, not elsewhere classified

Autoimmune disease NOS

279.8   Other

279.9   Unspecified

                          ICD-9/Ch03.TXT - pg. 23