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C50.8 vs Z85.828

C50.8 (Malignant neoplasm of overlapping sites of breast) compared with Z85.828 (Personal history of other malignant neoplasm of skin), from the official CMS tabular data. Z85.828 is the personal-history/screening code for the active disease C50.8 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.828
Personal history of other malignant neoplasm of skin
↔
C50.8
Malignant neoplasm of overlapping sites of breast

Personal-history or screening code versus the active disease.

Active disease for this site (skin)

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. Z85.828 is the personal-history or screening code for the active disease C50.8 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

C50.8Malignant neoplasm of overlapping sites of breastZ85.828Personal history of other malignant neoplasm of skin
Billing statusNon-billable header

Report instead: C50.811, C50.812, C50.819, C50.821, C50.822

Billable
ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionMalignant neoplasm of overlapping sites of breast is a non-billable ICD-10-CM category code (C50.8).Personal history of other malignant neoplasm of skin is a billable ICD-10-CM diagnosis code (Z85.828).
Includes
connective tissue of breast
Paget's disease of breast
Paget's disease of nipple
Conditions classifiable to C44
Use additional code
code to identify estrogen, and other hormones and factors receptor status (Z17.-)
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