F64.1Dual role transvestism

F64.1 is the ICD-10-CM diagnosis code for dual role transvestism. 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), F64.1 is specifically for dual role transvestism. Related codes cover Transsexualism (F64.0), gender identity disorder of childhood (F64.2), other gender identity disorders (F64.8), gender identity disorder, unspecified (F64.9) and gender identity disorder, in remission (F64.A).

Don't report F64.1 together with the conditions in its Excludes1 note: gender identity disorder in childhood (F64.2).

The conditions in its Excludes2 note aren't part of F64.1, but may be coded alongside it if the patient has both: fetishistic transvestism (F65.1).

Use an additional code to identify sex reassignment status (Z87.890-).

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.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).

Before ICD-10, this condition was coded in ICD-9-CM as 302.85 (gender identity disorder in adolescents or adults).