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C34.2 vs Z85.118

C34.2 (Malignant neoplasm of middle lobe, bronchus or lung) compared with Z85.118 (Personal history of other malignant neoplasm of bronchus and lung), from the official CMS tabular data. Z85.118 is the personal-history/screening code for the active disease C34.2 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.118
Personal history of other malignant neoplasm of bronchus and lung
↔
C34.2
Malignant neoplasm of middle lobe, bronchus or lung

Personal-history or screening code versus the active disease.

Active disease for this site (bronchus)

A personal-history code describes a condition that no longer exists and is no longer being treated, so it is not interchangeable with the active-disease code for the same site.

Source: CMS Table of Neoplasms (site match derived from the code title)

Can these codes be reported together?

History or screening versus active disease. Z85.118 is the personal-history or screening code for the active disease C34.2 names.

Site match derived from the code’s own title against the CMS/CDC Table of Neoplasms. A personal-history code describes a condition that no longer exists and is no longer being treated, so it is not interchangeable with the active-disease code.

Side by side

C34.2Malignant neoplasm of middle lobe, bronchus or lungZ85.118Personal history of other malignant neoplasm of bronchus and lung
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionMalignant neoplasm of middle lobe, bronchus or lung is a billable ICD-10-CM diagnosis code (C34.2).Personal history of other malignant neoplasm of bronchus and lung is a billable ICD-10-CM diagnosis code (Z85.118).
Includes
malignant neoplasm of middle ear
Conditions classifiable to C34
Use additional code
code to identify:
exposure to environmental tobacco smoke (Z77.22)
exposure to tobacco smoke in the perinatal period (P96.81)
code to identify:
alcohol use and dependence (F10.-)
exposure to environmental tobacco smoke (Z77.22)
Code first—
any follow-up examination after treatment of malignant neoplasm (Z08)
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources