2C25.1

ICD-11 MMS 2026-01

Small cell carcinoma of bronchus or lung

Description

A highly aggressive subtype of lung carcinoma characterised by the presence of malignant small cells and necrosis. Metastatic disease is usually present at the time of diagnosis.

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

  • Small cell carcinoma of bronchus or lung
  • oat cell carcinoma of unspecified site
  • small cell fusiform cell lung carcinoma of unspecified site
Show allHide
  • small cell intermediate cell lung carcinoma of unspecified site
  • Small cell bronchial carcinoma
  • Small cell lung cancer
  • Combined small cell lung carcinoma

Exclusions from above levels

  • 2D70 – Malignant neoplasm metastasis in lung
  • http://id.who.int/icd/entity/1965082709 – Malignant mesenchymal neoplasms
  • 2C51.2 – Mesotheliomas of peritoneum
Show allHide
  • 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

  • 2C25.0 – Adenocarcinoma of bronchus or lung
  • 2C25.2 – Squamous cell carcinoma of bronchus or lung
  • 2C25.3 – Large cell carcinoma of bronchus or lung
  • 2C25.4 – Carcinoid or other malignant neuroendocrine neoplasms of bronchus or lung
  • 2C25.5 – Unspecified malignant epithelial neoplasm of bronchus or lung
  • 2C25.Y – Other specified malignant neoplasms of bronchus or lung
  • 2C25.Z – Malignant neoplasms of bronchus or lung, unspecified

Foundation entity

Small cell carcinoma of bronchus or lung – http://id.who.int/icd/entity/1800431439

Allowed postcoordination axes

Part of: 2C25: Malignant neoplasms of bronchus or lung › 02: Neoplasms