2A70.1

ICD-11 MMS 2026-01

B lymphoblastic leukaemia or lymphoma with t(9:22) (q34;q11.2); BCR-ABL1

Description

A precursor lymphoid neoplasm which is composed of B-lymphoblasts and carries a translocation between the BCR gene on chromosome 22 and the ABL1 gene on chromosome 9. It results in the production of the p190 kd or p210 kd fusion protein. It has an unfavorable clinical outcome.

Index terms

  • B lymphoblastic leukaemia or lymphoma with t(9:22) (q34;q11.2); BCR-ABL1

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

  • 2A70.0 – B lymphoblastic leukaemia or lymphoma, not elsewhere classified
  • 2A70.Y – Other B-lymphoblastic leukaemia/lymphoma with recurrent genetic abnormalities

Foundation entity

B lymphoblastic leukaemia or lymphoma with t(9:22) (q34;q11.2); BCR-ABL1 – http://id.who.int/icd/entity/381281608

Allowed postcoordination axes

Part of: 2A70: Precursor B-lymphoblastic neoplasms › 02: Neoplasms