ICD-10 Code F64.9 – Gender identity disorder, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F64.9 – Gender identity disorder, unspecified
What it is
F64.9 identifies a diagnosis related to gender identity that is not further specified in the record. Use it when the documentation confirms a gender identity disorder but does not name a more specific subtype.
Clinical signs
Clinical features vary; refer to documentation. Records may note distress related to gender identity, persistent incongruence, or related concerns, but you should not infer details that are not explicitly documented.
When to use this code
Use this code when the clinician documents gender identity disorder or a comparable diagnosis without a more precise description. It is appropriate when the chart lacks enough detail to assign a more specific F64 code.
Check the note for terminology, because wording may support a different code if the provider specifies a distinct condition. You should code only what is documented and supported in the encounter record.
Do not use for
Do not use this code for a clearly specified gender identity diagnosis when a more exact code is available. Do not assign it if the documentation is unrelated or too vague; check documentation.
Coding tip
Look for the exact provider wording and code the most specific documented diagnosis available.