C34.9 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
C34.90
Malignant neoplasm of unspecified part of unspecified bronchus or lung
Billable
10
C34.91
Malignant neoplasm of unspecified part of right bronchus or lung
Billable
10
C34.92
Malignant neoplasm of unspecified part of left bronchus or lung
Billable