ICD-10-CM 2027 diagnosis code
Z00Encounter for general examination without complaint, suspected or reported diagnosis
Z00 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.Short description: Encntr for general exam w/o complaint, susp or reprtd dx
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z00
Z00 is the ICD-10-CM diagnosis code for encounter for general examination without complaint, suspected or reported diagnosis. It belongs to block Z00-Z13 (persons encountering health services for examinations) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: Z00.0 (examination), Z00.1 (examinations), Z00.2 (childhood), Z00.3 (state), Z00.5 (tissue), Z00.6 (program), Z00.7 (childhood) and Z00.8 (examination).
Don't report Z00 together with the conditions in its Excludes1 note: encounter for examination for administrative purposes (Z02.-).
The conditions in its Excludes2 note aren't part of Z00, but may be coded alongside it if the patient has both: encounter for pre-procedural examinations (Z01.81-) and special screening examinations (Z11-Z13).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under Z00
- Z00.0Encounter for general adult medical examination
- Z00.1Encounter for newborn, infant and child health examinations
- Z00.2Encounter for examination for period of rapid growth in childhoodBillable
- Z00.3Encounter for examination for adolescent development stateBillable
- Z00.5Encounter for examination of potential donor of organ and tissueBillable
- Z00.6Encounter for examination for normal comparison and control in clinical research programBillable
- Z00.7Encounter for examination for period of delayed growth in childhood
- Z00.8Encounter for other general examinationBillable
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to Z00.
Broader instructions also apply from Z00-Z13 Persons encountering health services for examinations and Chapter 21: Factors influencing health status and contact with health services.
Codes whose notes reference Z00
- Z02.7Excludes1
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Z00
Is Z00 billable?
- No. Z00 is a header code. Report one of its more specific subcodes instead.