F64.2Gender identity disorder of childhood

F64.2 is the ICD-10-CM diagnosis code for gender identity disorder of childhood. It belongs to category F64 (gender identity disorders), block F60-F69 (disorders of adult personality and behavior) and chapter 5 (mental, Behavioral and Neurodevelopmental disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within F64 (gender identity disorders), F64.2 is specifically for gender identity disorder of childhood. Related codes cover Transsexualism (F64.0), dual role transvestism (F64.1), other gender identity disorders (F64.8), gender identity disorder, unspecified (F64.9) and gender identity disorder, in remission (F64.A).

Don't report F64.2 together with the conditions in its Excludes1 note: gender identity disorder in adolescence and adulthood (F64.0).

The conditions in its Excludes2 note aren't part of F64.2, but may be coded alongside it if the patient has both: sexual maturation disorder (F66).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 887 (Other Mental Disorder Diagnoses, relative weight 1.1139), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

The Medicare Code Editor expects this diagnosis only for patients age 0 through 17; other ages trigger an age-conflict edit.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 302.6 (gender identity disorder in children).