F64.9 — Gender identity disorder, unspecified
Is F64.9 billable?
Yes, but F64.9 is an unspecified code. F64.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, F64.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting F64.9 — the more specific alternatives are listed below.
F64.9 at a glance
| Code | F64.9 |
|---|---|
| Description | Gender identity disorder, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does F64.9 group to?
F64.9 sits in MDC 19 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 887Other Mental Disorder Diagnosesmedical
How is F64.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to F64.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Identity disorder (child)
- Disorder › gender incongruence (of)
- Disorder › gender-identity or -role (of)
- Dysphoria › gender
- Disorder › psychological › associated with › uncertainty about gender identity (of)
Inclusion terms
Alternative wording in documentation that is classified to F64.9.
- Gender dysphoria, unspecified
- Gender incongruence, unspecified
- Gender-role disorder NOS
Excludes2 — not included here — inherited from Chapter 5
The conditions below are not part of F64.9, but a patient may have both at the same time. When documentation supports it, F64.9 and the excluded code may both be reported.
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
How long has F64.9 existed?
F64.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.