2C6Z

ICD-11 MMS 2026-01

Malignant neoplasms of breast, unspecified

Coding note from above levels

For use of this category, reference should be made to the mortality coding rules and guidelines in the Reference Guide.

Exclusions from above levels

  • 2B56.2 – Angiosarcoma of breast
  • 2E0Y – Nipple metastasis
  • http://id.who.int/icd/entity/1706880799 – Malignant neoplasm of skin of breast
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  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
  • http://id.who.int/icd/entity/879154182 – Neoplasms of central nervous system or related structures
  • http://id.who.int/icd/entity/944754984 – Neoplasms of haematopoietic or lymphoid tissues

Sibling codes

  • 2C60 – Carcinoma of breast, specialised type
  • 2C61 – Invasive carcinoma of breast
  • 2C62 – Inflammatory carcinoma of breast
  • 2C63 – Malignant phyllodes tumour of breast
  • 2C64 – Solid papillary carcinoma of breast with evidence of invasion
  • 2C65 – Hereditary breast and ovarian cancer syndrome
  • 2C6Y – Other specified malignant neoplasms of breast

Foundation entity

Malignant neoplasms of breast – http://id.who.int/icd/entity/1047754165

Allowed postcoordination axes

Part of: 02: Neoplasms