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Z00.0

Z00.0: Encounter for general adult medical examination

Non-billable headerICD-10-CM

Z00.0 is a non-billable header ICD-10-CM code for encounter for general adult medical examination. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • encounter for examination of sign or symptom- code to sign or symptom
  • general health check-up of infant or child (Z00.12.-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Encounter for adult periodic examination (annual) (physical) and any associated laboratory and radiologic examinations

Excludes1 inherited from the categories above Z00.0

A category’s note binds every code beneath it.

Written on Z00: Encounter for general examination without complaint, suspected or reported diagnosis

  • encounter for examination for administrative purposes (Z02.-)

Excludes2 inherited from the categories above Z00.0

Not part of this code, but both may be coded when both are present.

Written on Z00: Encounter for general examination without complaint, suspected or reported diagnosis

  • encounter for pre-procedural examinations (Z01.81-)
  • special screening examinations (Z11-Z13)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Z00.0

2 child codes. Green means billable.

Other codes under Z00

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.