2A44

ICD-11 MMS 2026-01

Myeloproliferative and myelodysplastic disease, unclassifiable

Description

This entity includes cases that have clinical, laboratory, and morphologic features that support the diagnosis of both a myelodysplastic syndrome and a myeloproliferative neoplasm, but do not meet the criteria for any of the other entities included in the myelodysplastic/myeloproliferative neoplasm category.

Index terms

  • Myeloproliferative and myelodysplastic disease, unclassifiable
  • Myelodysplastic and myeloproliferative disease, not elsewhere classified without mention of remission
  • Myelodysplastic disease, unclassifiable
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  • Myeloproliferative disease, unclassifiable
  • Myeloproliferative and myelodysplastic disease, unclassifiable in complete remission

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

Sibling codes

  • 2A40 – Chronic myelomonocytic leukaemia
  • 2A41 – Atypical chronic myeloid leukaemia, BCR-ABL1-negative
  • 2A42 – Juvenile myelomonocytic leukaemia
  • 2A43 – Refractory anaemia with ring sideroblasts associated with marked thrombocytosis
  • 2A4Y – Other specified myelodysplastic and myeloproliferative neoplasms
  • 2A4Z – Myelodysplastic and myeloproliferative neoplasms, unspecified

Foundation entity

Myeloproliferative and myelodysplastic disease, unclassifiable – http://id.who.int/icd/entity/855969668

Allowed postcoordination axes

Part of: 02: Neoplasms