ICD-10 Code for Thalassemia
Also indexed as (anemia) (disease)
The ICD-10-CM code for thalassemia is D56.9 — Thalassemia, unspecified. This is the code the Alphabetic Index gives for thalassemia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
D56.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which thalassemia code should you use?
The Alphabetic Index lists 7 codes under Thalassemia. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| with other hemoglobinopathy | D56.8 | Other thalassemias | |
| alpha | D56.0 | Alpha thalassemia | |
| beta | D56.1 | Beta thalassemia | |
| delta-beta | D56.2 | Delta-beta thalassemia | |
| dominant | D56.8 | Other thalassemias | |
| intermedia | D56.1 | Beta thalassemia | |
| major | D56.1 | Beta thalassemia | |
| minor | D56.3 | Thalassemia minor | |
| mixed | D56.8 | Other thalassemias | |
| specified type NEC | D56.8 | Other thalassemias | |
| trait | D56.3 | Thalassemia minor | |
| variants | D56.8 | Other thalassemias |
Thalassemia alpha
Thalassemia beta
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources