ICD-11 classes
03 Diseases of the blood or blood-forming organs
Anaemias or other erythrocyte disorders
3A50 — Thalassaemias
3A50.0 — Alpha thalassaemia

ICD-11 3A50.0 — Alpha thalassaemia

Alpha-thalassemia is an inherited haemoglobinopathy characterised by impaired synthesis of alpha-globin chains leading to a variable clinical picture depending on the number of affected alleles, and encompassing the alpha thalassaemia trait, haemoglobin H disease (HbH) and Bart's hydrops fetalis.

The diagnosis includes nothing.

Diagnosis with code 3A50.0 contains 6 clarifying diagnoses:

1. 3A50.00 — Mild alpha thalassaemia diseases
2. 3A50.01 — Thalassaemic alpha-chain variants
3. 3A50.02 — Haemoglobin H disease (– α/– – included)
4. 3A50.03 — Homozygous or compound heterozygous alpha0 thalassaemia
5. 3A50.0Y — Other specified alpha thalassaemia
6. 3A50.0Z — Alpha thalassaemia, unspecified