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C54.9 vs Z85.42

C54.9 (Malignant neoplasm of corpus uteri, unspecified) compared with Z85.42 (Personal history of malignant neoplasm of other parts of uterus), from the official CMS tabular data. Z85.42 is the personal-history/screening code for the active disease C54.9 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.42
Personal history of malignant neoplasm of other parts of uterus
↔
C54.9
Malignant neoplasm of corpus uteri, unspecified

Personal-history or screening code versus the active disease.

Active disease for this site (uterus)

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. Z85.42 is the personal-history or screening code for the active disease C54.9 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

C54.9Malignant neoplasm of corpus uteri, unspecifiedZ85.42Personal history of malignant neoplasm of other parts of uterus
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionMalignant neoplasm of corpus uteri, unspecified is a billable ICD-10-CM diagnosis code (C54.9).Personal history of malignant neoplasm of other parts of uterus is a billable ICD-10-CM diagnosis code (Z85.42).
Includes
malignant neoplasm of skin of female genital organs
—
Use additional code—
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