ICD-10 Code F64.8 – Other gender identity disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code F64.8 – Other gender identity disorders
What it is
F64.8 identifies gender identity disorders that do not fit the more specific ICD-10-CM categories. Use it when the record clearly supports a gender identity disorder, but the exact subtype is not documented.
Clinical signs
Clinical features vary; refer to documentation. Records may describe persistent distress, incongruence between experienced gender and assigned sex, or related identity concerns, but you should not assume details that are not stated.
When to use this code
Use F64.8 when the clinician documents an other specified gender identity disorder and does not name a more specific F64 category. It is appropriate when the note supports the diagnosis but leaves the subtype unspecified. Check documentation carefully before assigning it.
Do not use for
Do not use this code for a more specific gender identity disorder when the record names one. Avoid using it for unrelated mental health concerns or for gender-related documentation without a confirmed diagnosis.
Coding tip
If the documentation is vague, query for the exact diagnosis before defaulting to F64.8.