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D10.6 vs Z85.819

D10.6 (Benign neoplasm of nasopharynx) compared with Z85.819 (Personal history of malignant neoplasm of unspecified site of lip, oral cavity, and pharynx), from the official CMS tabular data. Z85.819 is the personal-history/screening code for the active disease D10.6 names. MedCoder-derived

Relationship

Review

Condition lifecycle relationship

Z85.819
Personal history of malignant neoplasm of unspecified site of lip, oral cavity, and pharynx
↔
D10.6
Benign neoplasm of nasopharynx

Personal-history or screening code versus the active disease.

Benign neoplasm of this site (pharynx)

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. Z85.819 is the personal-history or screening code for the active disease D10.6 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

D10.6Benign neoplasm of nasopharynxZ85.819Personal history of malignant neoplasm of unspecified site of lip, oral cavity, and pharynx
Billing statusBillableBillable
ClassificationC00-D49 — NeoplasmsZ00-Z99 — Factors influencing health status and contact with health services
DefinitionBenign neoplasm of nasopharynx is a billable ICD-10-CM diagnosis code (D10.6).Personal history of malignant neoplasm of unspecified site of lip, oral cavity, and pharynx is a billable ICD-10-CM diagnosis code (Z85.819).
Includes
Benign neoplasm of pharyngeal tonsil
Benign neoplasm of posterior margin of septum and choanae
—
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