C34.80
✓ Billable
Malignant neoplasm of overlapping sites of unspecified bronchus and lung
ICD-10-CM · FY2026 · Neoplasms
Code
C34.80
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code C34.80?
ICD-10-CM code C34.80 represents Malignant neoplasm of overlapping sites of unspecified bronchus and lung. It is a billable diagnosis code in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is C34.80 billable?
Yes. C34.80 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is C34.80 in?
C34.80 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the C34 category
C34
Malignant neoplasm of bronchus and lung
Non-billable
C34.0
Malignant neoplasm of main bronchus
Non-billable
C34.1
Malignant neoplasm of upper lobe, bronchus or lung
Non-billable
C34.2
Malignant neoplasm of middle lobe, bronchus or lung
Billable
C34.3
Malignant neoplasm of lower lobe, bronchus or lung
Non-billable
C34.8
Malignant neoplasm of overlapping sites of bronchus and lung
Non-billable
C34.9
Malignant neoplasm of unspecified part of bronchus or lung
Non-billable
C34.00
Malignant neoplasm of unspecified main bronchus
Billable
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