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C69.9 vs Z85.84

C69.9 (Malignant neoplasm of unspecified site of eye) compared with Z85.84 (Personal history of malignant neoplasm of eye and nervous tissue), from the official CMS tabular data. Z85.84 is the personal-history/screening code for the active disease C69.9 names.

Relationship

Review

Condition lifecycle relationship

Z85.84
Personal history of malignant neoplasm of eye and nervous tissue
↔
C69.9
Malignant neoplasm of unspecified site of eye

Personal-history or screening code versus the active disease.

Active disease for this site (eye)

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. Z85.84 is the personal-history or screening code for the active disease C69.9 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

C69.9Malignant neoplasm of unspecified site of eyeZ85.84Personal history of malignant neoplasm of eye and nervous tissue
Billing statusNon-billable header

Report instead: C69.90, C69.91, C69.92

Non-billable header

Report instead: Z85.840, Z85.841, Z85.848

ClassificationC00-D49 — Neoplasms (C00-D49)Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99)
DefinitionMalignant neoplasm of unspecified site of eye is a non-billable ICD-10-CM category code (C69.9).Personal history of malignant neoplasm of eye and nervous tissue is a non-billable ICD-10-CM category code (Z85.84).
Includes
Malignant neoplasm of eyeball
Conditions classifiable to C69-C72
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