4. DISEASES OF THE BLOOD AND BLOOD-FORMING ORGANS (280-289)
288 Diseases of white blood cells
Excludes:
leukemia (204.0-208.9)
288.0: Neutropenia
Decreased Absolute Neutrophil Count (ANC)
Use additional code for any associated:
fever (780.61)
mucositis (478.11, 528.00-528.09, 538, 616.81)
Excludes:
neutropenic splenomegaly (289.53)
transitory neonatal neutropenia (776.7)
288.1: Functional disorders of polymorphonuclear neutrophils
Chronic (childhood) granulomatous disease
Congenital dysphagocytosis
Job's syndrome
Lipochrome histiocytosis (familial)
Progressive septic granulomatosis
288.2: Genetic anomalies of leukocytes
Anomaly (granulation) (granulocyte) or syndrome:
Alder's (-Reilly)
Chédiak-Steinbrinck (-Higashi)
Jordan's
May-Hegglin
Pelger-Huet
Hereditary:
hypersegmentation
hyposegmentation
leukomelanopathy
288.3: Eosinophilia
Eosinophilia
allergic
hereditary
idiopathic
secondary
Eosinophilic leukocytosis
Excludes:
Löffler's syndrome (518.3)
pulmonary eosinophilia (518.3)
288.4: Hemophagocytic syndromes
Familial hemophagocytic lymphohistiocytosis
Familial hemophagocytic reticulosis
Hemophagocytic syndrome, infection-associated
Histiocytic syndromes
Macrophage activation syndrome
288.5: Decreased white blood cell count
Excludes:
neutropenia (288.01-288.09)
288.6: Elevated white blood cell count
Excludes:
eosinophilia (288.3)
288.8: Other specified disease of white blood cells
Excludes:
decreased white blood cell counts (288.50-288.59)
elevated white blood cell counts (288.60-288.69)
immunity disorders (279.0-279.9)
288.9: Unspecified disease of white blood cells
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