ICD-11 classes
02 Neoplasms
Neoplasms of haematopoietic or lymphoid tissues
Myeloproliferative neoplasms
2A20 — Non mast cell myeloproliferative neoplasms
3B63.1 — Acquired thrombocytosis
ICD-11 3B63.1 — Acquired thrombocytosis
A chronic myeloproliferative neoplasm that involves primarily the megakaryocytic lineage. It is characterised by sustained thrombocytosis in the blood, increased numbers of large, mature megakaryocytes in the bone marrow, and episodes of thrombosis and/or haemorrhage. Progression to a post -essential thrombocythaemia myelofibrosis stage or transformation to acute myeloid leukaemia is rarely observed.
It includes 1 item.
- Idiopathic haemorrhagic thrombocythaemia
The diagnosis excludes nothing.
Diagnosis with code 3B63.1 contains 3 clarifying diagnoses:
- 3B63.10 — Secondary thrombocytosis
- 3B63.1Y — Other specified acquired thrombocytosis
- 3B63.1Z — Acquired thrombocytosis, unspecified
The diagnosis is coded elsewhere:
- Thrombocytosis #3109
- Acquired thrombocytosis #3111
- Non mast cell myeloproliferative neoplasms #3187
- Acquired thrombocytosis #3200