Skip to main content

D04.0 vs Z85.818

D04.0 (Carcinoma in situ of skin of lip) compared with Z85.818 (Personal history of malignant neoplasm of other sites of lip, oral cavity, and pharynx), from the official CMS tabular data. Z85.818 is the personal-history/screening code for the active disease D04.0 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.818
Personal history of malignant neoplasm of other sites of lip, oral cavity, and pharynx
↔
D04.0
Carcinoma in situ of skin of lip

Personal-history or screening code versus the active disease.

In-situ disease for this site (lip)

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. Z85.818 is the personal-history or screening code for the active disease D04.0 names.

Site match derived from the code’s own title against the CMS 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

D04.0Carcinoma in situ of skin of lipZ85.818Personal history of malignant neoplasm of other sites of lip, oral cavity, and pharynx
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionCarcinoma in situ of skin of lip is a billable ICD-10-CM diagnosis code (D04.0).Personal history of malignant neoplasm of other sites of lip, oral cavity, and pharynx is a billable ICD-10-CM diagnosis code (Z85.818).
Includes
Bowen's disease
erythroplasia
grade III intraepithelial neoplasia
Queyrat's erythroplasia
—
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)
Edit this comparisonCheck a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources