D55.21 — Anemia due to pyruvate kinase deficiency

D55.21 is the ICD-10-CM 2025 code for Anemia due to pyruvate kinase deficiency. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.

Yes, D55.21 is a billable / specific ICD-10-CM code, meaning it can be used by clinicians and hospitals as a primary or secondary diagnosis on claims and electronic health records.

D55.21 belongs to the chapter "Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism" (codes D50-D89). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.

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