D56
Thalassemia
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
D56 is a non-billable ICD-10-CM code category for thalassemia. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are D56.0 Alpha thalassemia, D56.1 Beta thalassemia, D56.2 Delta-beta thalassemia, D56.3 Thalassemia minor and 4 more. Its coding notes include 1 Excludes1 entry and 9 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
This code
- sickle-cell thalassemia (D57.4-)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (9 notes)
Inherited from Chapter 3 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- autoimmune disease (systemic) NOS (M35.9)
- certain conditions originating in the perinatal period (P00-P96)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- human immunodeficiency virus [HIV] disease (B20)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)