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D00.0 vs Z12.81

D00.0 (Carcinoma in situ of lip, oral cavity and pharynx) compared with Z12.81 (Encounter for screening for malignant neoplasm of oral cavity), from the official CMS tabular data. Z12.81 is the personal-history/screening code for the active disease D00.0 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z12.81
Encounter for screening for malignant neoplasm of oral cavity
D00.0
Carcinoma in situ of lip, oral cavity and pharynx

Personal-history or screening code versus the active disease.

In-situ disease for this site (cavity)

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. Z12.81 is the personal-history or screening code for the active disease D00.0 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

D00.0Carcinoma in situ of lip, oral cavity and pharynxZ12.81Encounter for screening for malignant neoplasm of oral cavity
Billing statusNon-billable header

Report instead: D00.00, D00.01, D00.02, D00.03, D00.04

Billable
ClassificationC00-D49 — Neoplasms (C00-D49)Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99)
DefinitionCarcinoma in situ of lip, oral cavity and pharynx is a non-billable ICD-10-CM category code (D00.0).Encounter for screening for malignant neoplasm of oral cavity is a billable ICD-10-CM diagnosis code (Z12.81).
Includes
Bowen's disease
erythroplasia
grade III intraepithelial neoplasia
Queyrat's erythroplasia
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 any family history of malignant neoplasm (Z80.-)

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