Functional disorders of polymorphonuclear neutrophils (D71)

The ICD-10 code D71 is used to identify functional disorders of polymorphonuclear neutrophils, which are specialized white blood cells important for fighting infections. These disorders affect the neutrophils’ ability to perform their normal immune functions, leading to repeated infections and other complications.

Specifically, this code covers conditions such as chronic granulomatous disease in its various types (I, IA, IIA, II, III, IVA, IV), a group of inherited disorders where neutrophils cannot effectively kill certain bacteria and fungi. It also includes related terms like neutrophil lactoferrin deficiency and complications stemming from granulomatous disease, such as hypopituitarism, hypoparathyroidism, hypercalcemia, and interstitial lung disease. These synonyms help clarify that when coding for these complex immune dysfunctions, D71 captures a range of granulomatous and neutrophil functional disorders. Medical coders can rely on this code when documenting these specific immune abnormalities for accurate clinical and billing records.