2A70

ICD-11 MMS 2026-01

Precursor B-lymphoblastic neoplasms

Description

Neoplasms of lymphoblasts committed to the B-cell lineage.

Index terms

  • Precursor B-lymphoblastic 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

  • 2A70.0 – B lymphoblastic leukaemia or lymphoma, not elsewhere classified
  • 2A70.1 – B lymphoblastic leukaemia or lymphoma with t(9:22) (q34;q11.2); BCR-ABL1
  • 2A70.Y – Other B-lymphoblastic leukaemia/lymphoma with recurrent genetic abnormalities

Sibling codes

  • 2A71 – Precursor T-lymphoblastic neoplasms
  • 2A7Z – Precursor lymphoid neoplasms, unspecified

Foundation entity

Precursor B-lymphoblastic neoplasms – http://id.who.int/icd/entity/1099674056

Allowed postcoordination axes

Part of: 02: Neoplasms