2C61.2

ICD-11 MMS 2026-01

Invasive pleomorphic lobular carcinoma of breast

Description

A grade II invasive lobular carcinoma of the breast, characterised by the presence of neoplastic cells with large and atypical nuclei.

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.

Index terms

  • Invasive pleomorphic lobular carcinoma of breast

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

  • 2C61.0 – Invasive ductal carcinoma of breast
  • 2C61.1 – Invasive lobular carcinoma of breast
  • 2C61.3 – Invasive carcinoma of breast with mixed ductal and lobular features
  • 2C61.4 – Invasive carcinoma of breast, unidentifiable type
  • 2C61.Y – Other invasive carcinoma of breast
  • 2C61.Z – Invasive carcinoma of breast, unspecified

Foundation entity

Invasive pleomorphic lobular carcinoma of breast – http://id.who.int/icd/entity/619691048

Allowed postcoordination axes

Part of: 2C61: Invasive carcinoma of breast › 02: Neoplasms