ICD-10 Code D56.8 – Other thalassemias (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D56.8 – Other thalassemias
What it is
D56.8 identifies thalassemia disorders that do not fit a more specific ICD-10 category. Use it for inherited hemoglobin production abnormalities when documentation says “other thalassemia” or names a subtype not listed elsewhere.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include microcytic anemia, fatigue, pallor, and evidence of hemolysis or ineffective erythropoiesis.
When to use this code
Use this code when the record clearly documents a thalassemia type that is not alpha, beta, or another more specific code. It also fits cases where the clinician describes an “other” or unspecified inherited thalassemia subtype. Check documentation if the exact variant is unclear.
Do not use for
Do not use D56.8 for alpha thalassemia, beta thalassemia, or thalassemia trait when a more specific code is documented. Avoid it if the chart only mentions anemia without confirming thalassemia.
Coding tip
Code the most specific thalassemia documented, and query the provider if the subtype is not clearly stated.