ICD-10-CM 2027 diagnosis code

Z84Family history of other conditions

Not billable — use a more specific code

Z84 is a header code, so it can't be reported by itself. Choose one of the 6 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 Z84

Z84 is the ICD-10-CM diagnosis code for family history of other conditions. 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 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Z84.0 (tissue), Z84.1 (ureter), Z84.2 (system), Z84.3 (consanguinity), Z84.8 (conditions) and Z84.A (diethylstilbestrol).

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 Z84

Notes that apply from higher levels

Instructions written at a parent level also apply to Z84.

Broader instructions also apply from 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.

Codes whose notes reference Z84

Z15Use additional code

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 Z84

Is Z84 billable?: No. Z84 is a header code. Report one of its more specific subcodes instead.