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C16.5 vs Z85.020

C16.5 (Malignant neoplasm of lesser curvature of stomach, unspecified) compared with Z85.020 (Personal history of malignant carcinoid tumor of stomach), from the official CMS tabular data. Z85.020 is the personal-history/screening code for the active disease C16.5 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.020
Personal history of malignant carcinoid tumor of stomach
↔
C16.5
Malignant neoplasm of lesser curvature of stomach, unspecified

Personal-history or screening code versus the active disease.

Active disease for this site (stomach)

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. Z85.020 is the personal-history or screening code for the active disease C16.5 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

C16.5Malignant neoplasm of lesser curvature of stomach, unspecifiedZ85.020Personal history of malignant carcinoid tumor of stomach
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionMalignant neoplasm of lesser curvature of stomach, unspecified is a billable ICD-10-CM diagnosis code (C16.5).Personal history of malignant carcinoid tumor of stomach is a billable ICD-10-CM diagnosis code (Z85.020).
Includes
Malignant neoplasm of lesser curvature of stomach, not classifiable to C16.1-C16.4
Conditions classifiable to C7A.092
Use additional code
code to identify:
alcohol abuse and dependence (F10.-)
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