ICD-10-CM · Chapter 2 · C00-D49
C34 Malignant neoplasm of bronchus and lung
Excludes 1 (cannot be coded together)
- Kaposi's sarcoma of lung (C46.5-)
- malignant carcinoid tumor of the bronchus and lung (C7A.090)
Use Additional Code
- code to identify:
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| C34..0 | Malignant neoplasm of main bronchus | No |
| C34..00 | Malignant neoplasm of unspecified main bronchus | Yes |
| C34..01 | Malignant neoplasm of right main bronchus | Yes |
| C34..02 | Malignant neoplasm of left main bronchus | Yes |
| C34..1 | Malignant neoplasm of upper lobe, bronchus or lung | No |
| C34..10 | Malignant neoplasm of upper lobe, unspecified bronchus or lung | Yes |
| C34..11 | Malignant neoplasm of upper lobe, right bronchus or lung | Yes |
| C34..12 | Malignant neoplasm of upper lobe, left bronchus or lung | Yes |
| C34..2 | Malignant neoplasm of middle lobe, bronchus or lung | Yes |
| C34..3 | Malignant neoplasm of lower lobe, bronchus or lung | No |
| C34..30 | Malignant neoplasm of lower lobe, unspecified bronchus or lung | Yes |
| C34..31 | Malignant neoplasm of lower lobe, right bronchus or lung | Yes |
| C34..32 | Malignant neoplasm of lower lobe, left bronchus or lung | Yes |
| C34..8 | Malignant neoplasm of overlapping sites of bronchus and lung | No |
| C34..80 | Malignant neoplasm of overlapping sites of unspecified bronchus and lung | Yes |
| C34..81 | Malignant neoplasm of overlapping sites of right bronchus and lung | Yes |
| C34..82 | Malignant neoplasm of overlapping sites of left bronchus and lung | Yes |
| C34..9 | Malignant neoplasm of unspecified part of bronchus or lung | No |
| C34..90 | Malignant neoplasm of unspecified part of unspecified bronchus or lung | Yes |
| C34..91 | Malignant neoplasm of unspecified part of right bronchus or lung | Yes |
| C34..92 | Malignant neoplasm of unspecified part of left bronchus or lung | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category C34:
- Lung Cancer — Cáncer de pulmón
Last reviewed: September 2026