ICD-10-CM 2027 diagnosis code
Z78Other specified health status
Z78 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
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 Z78
Z78 is the ICD-10-CM diagnosis code for other specified health status. It belongs to block Z77-Z99 (persons with potential health hazards related to family and personal history and certain conditions influencing health status) 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 3 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: Z78.0 (state), Z78.1 (status) and Z78.9 (status).
The conditions in its Excludes2 note aren't part of Z78, but may be coded alongside it if the patient has both: asymptomatic human immunodeficiency virus [HIV] infection status (Z21), postprocedural status (Z93-Z99) and sex reassignment status (Z87.890-).
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 Z78
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to Z78.
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 Z78
Is Z78 billable?
- No. Z78 is a header code. Report one of its more specific subcodes instead.