ICD-10-CM 2027 diagnosis code

F64Gender identity disorders

Not billable — use a more specific code

F64 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 F64

F64 is the ICD-10-CM diagnosis code for gender identity disorders. It belongs to block F60-F69 (disorders of adult personality and behavior) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). 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: F64.0 (Transsexualism), F64.1 (transvestism), F64.2 (childhood), F64.8 (disorders), F64.9 (unspecified) and F64.A (remission).

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 F64

Notes that apply from higher levels

Instructions written at a parent level also apply to F64.

Broader instructions also apply from Chapter 5: Mental, Behavioral and Neurodevelopmental disorders.

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 F64

Is F64 billable?: No. F64 is a header code. Report one of its more specific subcodes instead.