Is ICD-10-CM code F64.A billable?

Yes, F64.A (Gender identity disorder, in remission) is a billable ICD-10-CM diagnosis code, valid for reimbursement on HIPAA-covered transactions for FY2027.

What chapter does ICD-10-CM code F64.A belong to?

F64.A belongs to Chapter 5 of the ICD-10-CM tabular list: F01–F99 (Mental, Behavioral and Neurodevelopmental Disorders).

Is F64.A a new ICD-10-CM code for 2027?

Yes, F64.A was added or revised in the FY2027 ICD-10-CM update, effective October 1, 2026, as published by the Centers for Medicare and Medicaid Services (CMS).

F64.ABillable, valid for claims from October 1, 2026New for FY2027

Gender identity disorder, in remission

Under F64 Gender identity disorders, in Disorders of adult personality and behavior (F60-F69), chapter 5: Mental, Behavioral and Neurodevelopmental Disorders

F64.A is billable and valid on claims for FY 2027. If the record has more detail, check the other codes under F64 below.
As a secondary diagnosis it is not a CC or MCC, so it doesn't raise the MS-DRG payment.

Also indexed as: Disorder, gender-identity or -role, in remission; Dysphoria, gender, in, remission

Instructional notes

Includes: conditions that are coded here

Gender dysphoria, in remission (desistance)

Other codes under F64

Gender identity disorders

F64.0Transsexualism
F64.1Dual role transvestism
F64.2Gender identity disorder of childhood
F64.8Other gender identity disorders
F64.9Gender identity disorder, unspecified
F64.AGender identity disorder, in remission(this code)

MS-DRGs

As the principal diagnosis, this code groups to these MS-DRGs (v44.0).

DRG 887 Other Mental Disorder Diagnoses

Code history

Added in FY2027 (effective October 1, 2026). Before that, these cases were coded as F64.9 (Gender identity disorder, unspecified). No changes since.