New for FY2027 ICD-10-CM · October 1, 2026
F64.A: Gender identity disorder, in remission
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Gender identity disorder, in remission. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Billable code. Verified against the official FY2027 order file.
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Includes
disorders of psychological development
Source: F01-F99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
Source: F01-F99 (chapter, inherited).
Instructional note
Gender dysphoria, in remission (desistance)
Source: F64.A (self, direct).
Compare the FY2027 additions, removals and billable-status changes
What does F64.A mean in FY2027?
The official ICD-10-CM descriptor is Gender identity disorder, in remission. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
When did F64.A become an ICD-10-CM code?
F64.A is new for FY2027 ICD-10-CM, effective October 1, 2026. It is absent from the FY2026 April order file. Use the code set that applies to the encounter or inpatient discharge date, and check the official Tabular instructions.
Is F64.A billable in FY2027?
The FY2027 order file marks F64.A as billable. Check the complete Tabular instructions and documentation before assigning it.
Does F64.A map to an HCC?
F64.A is not in the current CMS mapping file (it is new for FY2027), and CMS has not yet published payment year 2028 mappings. No HCC category or RAF coefficient is shown.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.