ICD-10-CM 2027
ICD-10 code for small cell carcinoma
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Carcinoma (malignant) › small cell”. Page updated September 29, 2026.
About coding small cell carcinoma
The official ICD-10-CM index doesn't give a single default code for small cell carcinoma; the code depends on the details below.
More specific small cell carcinoma codes (official index)
- fusiform cell
- specified site
- unspecified site C34.90 — Malignant neoplasm of unspecified part of unspecified bronchus or lung
- intermediate cell
- specified site
- unspecified site C34.90 — Malignant neoplasm of unspecified part of unspecified bronchus or lung
- large cell
- specified site
- unspecified site C34.90 — Malignant neoplasm of unspecified part of unspecified bronchus or lung