C34.8 ICD-10 Code: Malignant Neoplasm of Overlapping Sites of Bronchus and Lung (2027)

Code: C34.8 (claims format: C348)
Description: Malignant neoplasm of overlapping sites of bronchus and lung
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 2. Neoplasms (C00-D49)
Block: C30-C39 Malignant neoplasms of respiratory and intrathoracic organs
Parent codes: C34

Billable codes under C34.8

C34.8 is a header code and cannot be used on claims. Choose the most specific code:

C34.80 – Malignant neoplasm of overlapping sites of unspecified bronchus and lungBillable
C34.81 – Malignant neoplasm of overlapping sites of right bronchus and lungBillable
C34.82 – Malignant neoplasm of overlapping sites of left bronchus and lungBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C34 – Malignant neoplasm of bronchus and lung

Excludes1 (not coded here):

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)

Block C30-C39

Includes:

malignant neoplasm of middle ear

Excludes1 (not coded here):

mesothelioma (C45.-)

Related codes in C34

Frequently asked questions

What is ICD-10 code C34.8?

C34.8 is the ICD-10-CM code for malignant neoplasm of overlapping sites of bronchus and lung, in the block C30-C39 (Malignant neoplasms of respiratory and intrathoracic organs).

Is C34.8 a billable code?

No. C34.8 is a header code with more specific child codes; report one of the billable codes listed above.

What category does C34.8 belong to?

It belongs to category C34 – Malignant neoplasm of bronchus and lung.