2026 ICD-10-CM Diagnosis Code F64.9Gender identity disorder, unspecified

ICD-10-CM Codes›F01–F99›F60-F69›F64

ICD-10-CM F64.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F64.9 is a billable ICD-10-CM diagnosis code for gender identity disorder, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as abnormal development of sexuality. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Miscellaneous mental and behavioral disorders/conditions.

Code Identity

ICD-10-CM Code
F64.9
Billable Status
Yes — Valid for Submission
Code Describes
Gender identity disorder, unspecified
Short Description
Gender identity disorder, unspecified
Same as the full description in the CMS dataset.
Parent Code
F64
Gender identity disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF60-F69Disorders of adult personality and behavior
CategoryF64Gender identity disorders
This CodeF64.9Gender identity disorder, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal development of sexuality
  • Gender dysphoria
  • Gender identity disorder
  • Gender incongruence
  • Psychosexual identity disorder
  • Sexual relationship problem
  • Sexual relationship problem due to gender identity confusion

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Gender dysphoria, unspecified
  • Gender incongruence, unspecified
  • Gender-role disorder NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • gender incongruence
    • Disorder(of)
      • gender-identity or -role
    • Disorder(of)
      • psychological
        • associated with
          • uncertainty about gender identity
    • Dysphoria
      • gender
    • Identity disorder(child)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD013
Miscellaneous mental and behavioral disorders/conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Gender Dysphoria

    a marked difference between the individual’s expressed/experienced gender and the gender others would assign to the individual, and it must continue for at least six months. (from dsm-5)

  • Gender Identity Disorder

    this concept has been retired and marked obsolete to ensure compliance with the executive order 14168 which mandates that gender should not be used as a replacement for sex.

  • Sexual and Gender Identity Disorders

    this concept has been retired and marked obsolete to ensure compliance with the executive order 14168 which mandates that gender should not be used as a replacement for sex.

  • Gender Identity Disorder

    a disorder characterized by a strong and persistent cross-gender identification (such as stating a desire to be the other sex or frequently passing as the other sex) coupled with persistent discomfort with his or her sex (manifested in adults, for example, as a preoccupation with altering primary and secondary sex characteristics through hormonal manipulation or surgery).

  • Sexual and Gender Identity Disorders

    a category of psychiatric disorders characterized by a disturbance in sexual desire and in the psychophysiological changes that make up the sexual response cycle.

  • Gender Dysphoria

    significant distress or impairment resulting from an inconsistency between an individual's biological sex and their self-identification. important notice: the nci thesaurus contains biomedical terminologies that nci does not own or control. this concept contains gender-related content that does not comply with executive order 14168.

Convert F64.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
302.6 Gendr identity dis-child
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F64.9Overview

Is F64.9 (Gender identity disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report gender identity disorder, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F64.9?

Under the General Equivalence Mappings, gender identity disorder, unspecified converts to ICD-9-CM 302.6 (gendr identity dis-child). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.