D56: Thalassemia

Codes under D56 (Thalassemia). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
D56.0	Alpha thalassemia	✓
D56.1	Beta thalassemia	✓
D56.2	Delta-beta thalassemia	✓
D56.3	Thalassemia minor	✓
D56.4	Hereditary persistence of fetal hemoglobin [HPFH]	✓
D56.5	Hemoglobin E-beta thalassemia	✓
D56.8	Other thalassemias	✓
D56.9	Thalassemia, unspecified	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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