2A20

ICD-11 MMS 2026-01

Non mast cell myeloproliferative neoplasms

Exclusions from above levels

2E03 – Malignant neoplasm metastasis in bone or bone marrow
http://id.who.int/icd/entity/501778925 – Malignant neoplasm metastasis in lymph nodes
http://id.who.int/icd/entity/97145147 – Malignant neoplasm metastasis in thymus gland

Child codes

2A20.0 – Chronic myelogenous leukaemia, BCR-ABL1-positive
2A20.1 – Chronic neutrophilic leukaemia
2A20.2 – Primary myelofibrosis
2A20.3 – Chronic eosinophilic leukaemia, not elsewhere classified
2A20.4 – Polycythaemia vera
2A20.5 – Non mast cell myeloproliferative neoplasm, unclassifiable
2A20.Y – Other specified non mast cell myeloproliferative neoplasms
2A20.Z – Non mast cell myeloproliferative neoplasms, unspecified

Foundation children elsewhere

3B63.1 – Acquired thrombocytosis

Sibling codes

2A21 – Mastocytosis
2A2Y – Other specified myeloproliferative neoplasm
2A2Z – Myeloproliferative neoplasm, unspecified

Foundation entity

Non mast cell myeloproliferative neoplasms – http://id.who.int/icd/entity/1658448496

Allowed postcoordination axes

Part of: 02: Neoplasms