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C34.9

Non-billable

Malignant neoplasm of unspecified part of bronchus or lung

C34.9 is the ICD-10-CM code for Malignant neoplasm of unspecified part of bronchus or lung. It is a non-billable category code — use a more specific child code such as C34.90 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Parent
C34
Subcodes
3
Edition
FY2026

C00-D49 Neoplasms

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code C34.9?
C34.9 is the ICD-10-CM code for "Malignant neoplasm of unspecified part of bronchus or lung". It falls under C00-D49 Neoplasms.
Is C34.9 a billable code?
No — C34.9 is a non-billable header code. Use a more specific child code (such as C34.90) for billing.
What are the subcodes of C34.9?
C34.9 has 3 more specific child codes, including C34.90, C34.91, C34.92.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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