ICD-11 classes
03 Diseases of the blood or blood-forming organs
Coagulation defects, purpura or other haemorrhagic or...
3B65 — Thrombotic microangiopathy, not elsewhere classified
ICD-11 3B65 — Thrombotic microangiopathy, not elsewhere classified
Thrombotic microangiopathies are microvascular occlusive disorders characterised by systemic or intrarenal aggregation of platelets, thrombocytopenia, and mechanical injury to erythrocytes. Thrombotic thrombocytopenic purpura (TTP) and haemolytic–uremic syndrome (HUS) represent a spectrum of thrombotic microangiopathies. In TTP, systemic microvascular aggregation of platelets causes ischemia in the brain and other organs. In HUS, platelet–fibrin thrombi predominantly occlude the renal circulation.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code 3B65 contains 2 clarifying diagnoses:
- 3B64.14 — Thrombotic thrombocytopenic purpura
- 3A21.2 — Haemolytic uraemic syndrome
The diagnosis is coded elsewhere:
- Vasculitis #3669
- Vasculitis #18397
The diagnosis is included in 4 other classes.
- Thrombotic thrombocytopenic purpura (3B64.14)
- Haemolytic uraemic syndrome (3A21.2)
- Methylcobalamin deficiency type cbl G (5C50.B)
- Hereditary haemolytic uraemic syndrome (3A10.Y)