Acquired thrombocytosis

Description

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.

Inclusions

Idiopathic haemorrhagic thrombocythaemia

Exclusions from above levels

JA43.3 – Postpartum coagulation defects
04 – Diseases of the immune system
05 – Endocrine, nutritional or metabolic diseases

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18 – Complications of pregnancy, childbirth or the puerperium
19 – Certain conditions originating in the perinatal period
20 – Congenital malformations, deformations or chromosomal abnormalities
22 – Injury, poisoning or certain other consequences of external causes
http://id.who.int/icd/entity/1000704511 – Human immunodeficiency virus disease
JB64.1 – Other diseases of the blood or blood-forming organs or certain disorders involving the immune mechanism complicating pregnancy, childbirth or the puerperium

Child codes

3B63.10 – Secondary thrombocytosis
3B63.1Y – Other specified acquired thrombocytosis
3B63.1Z – Acquired thrombocytosis, unspecified

Sibling codes

3B63.0 – Congenital thrombocytosis
3B63.Y – Other specified thrombocytosis
3B63.Z – Thrombocytosis, unspecified

Foundation entity

Acquired thrombocytosis – http://id.who.int/icd/entity/1744773503

Part of: 3B63: Thrombocytosis › 03: Diseases of the blood or blood-forming organs