2027 ICD-10-CM Diagnosis Code F64.2Gender identity disorder of childhood

ICD-10-CM Codes›F01–F99›F60-F69›F64

ICD-10-CM F64.2
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

F64.2 is a billable ICD-10-CM diagnosis code for gender identity disorder of childhood. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 887. The code is restricted by the Medicare Code Editor to pediatric patients (age 0 through 17). Coders also document this condition as desire to become member of the opposite sex. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Miscellaneous mental and behavioral disorders/conditions.

Code Identity

ICD-10-CM Code
F64.2
Billable Status
Yes — Valid for Submission
Code Describes
Gender identity disorder of childhood
Short Description
Gender identity disorder of childhood
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 CodeF64.2Gender identity disorder of childhood

Code EditsBilling

Medicare Code Editor checks that affect claim validity for F64.2.

Pediatric diagnoses
The Medicare Code Editor detects inconsistencies in pediatric cases by checking a patient's age and any diagnosis on the patient's record. The pediatric code edits apply to patients age range is 0–17 years inclusive (e.g., Reye's syndrome, routine child health exam).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Desire to become member of the opposite sex
  • Gender dysphoria
  • Gender dysphoria in childhood
  • Gender incongruence
  • Gender incongruence in childhood

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F64.2: its own notes plus those printed at Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Gender dysphoria in children
  • Gender incongruence of childhood

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • gender identity disorder in adolescence and adulthood (F64.0)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On F64.2 itself
  • sexual maturation disorder (F66)
From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F64.2, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming F64.2: they are not reported together with it, unless the two conditions are unrelated.

  • F64.0 Transsexualism
    gender identity disorder of childhood (F64.2)
  • F64.1 Dual role transvestism
    gender identity disorder in childhood (F64.2)

Excludes2 2

These codes carry an Excludes2 note naming F64.2: its condition is not part of those codes, and both may be reported when the patient has both.

  • F93.8 Other childhood emotional disorders
    gender identity disorder of childhood (F64.2)
  • F98 Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence
    gender identity disorder of childhood (F64.2)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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)

Convert F64.2 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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F64.2Overview

What is the ICD-10 code for gender identity disorder of childhood?

The ICD-10-CM code for gender identity disorder of childhood is F64.2 (sometimes written as F642). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is F64.2 (Gender identity disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report gender identity disorder of childhood on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does F64.2 group to?

When gender identity disorder of childhood is the principal diagnosis on an inpatient stay, it groups to MS-DRG 887 (other Mental Disorder Diagnoses), which carries a relative weight of 1.1154. Higher weights mean higher Medicare reimbursement.

Who can F64.2 be reported for?

The Medicare Code Editor checks gender identity disorder of childhood against patient demographics: this code is intended for pediatric patients (age 0 through 17). Claims outside these limits are flagged as inconsistent.

Can F64.2 be reported with F64.0?

Not as a rule. The Excludes1 note on F64.2 lists "gender identity disorder in adolescence and adulthood (F64.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).