Malignant neoplasm of lower lobe, bronchus or lung

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

C34.30 Malignant neoplasm of lower lobe, unspecified bronchus or lung
C34.31 Malignant neoplasm of lower lobe, right bronchus or lung
C34.32 Malignant neoplasm of lower lobe, left bronchus or lung

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Malignant neoplasm of lower lobe, bronchus or lung

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from C34 Malignant neoplasm of bronchus and lung

Excludes1 - never 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)

Inherited from the C30-C39 section Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)

Excludes1 - never coded here

mesothelioma (C45.-)

Includes

malignant neoplasm of middle ear

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Neoplasm, neoplastic > lung > lower lobe
Neoplasm, neoplastic > bronchus > lower lobe of lung

Codes in the same group

Code	Description	Status
C34.0	Malignant neoplasm of main bronchus	Not billable
C34.1	Malignant neoplasm of upper lobe, bronchus or lung	Not billable
C34.2	Malignant neoplasm of middle lobe, bronchus or lung	Valid
C34.8	Malignant neoplasm of overlapping sites of bronchus and lung	Not billable
C34.9	Malignant neoplasm of unspecified part of bronchus or lung	Not billable