2027 ICD-10-CM Diagnosis Code F64.1Dual role transvestism

ICD-10-CM Codes›F01–F99›F60-F69›F64

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

F64.1 is a billable ICD-10-CM diagnosis code for dual role transvestism. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 887. Coders also document this condition as cross-dressing. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Miscellaneous mental and behavioral disorders/conditions.

Code Identity

ICD-10-CM Code
F64.1
Billable Status
Yes — Valid for Submission
Code Describes
Dual role transvestism
Short Description
Dual role transvestism
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 CodeF64.1Dual role transvestism

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Cross-dressing
  • Dual-role transvestism
  • Primary transvestism
  • Secondary transvestism

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F64.1: 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

Excludes1

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

  • gender identity disorder in childhood (F64.2)

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 F64.1 itself
  • fetishistic transvestism (F65.1)
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)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

  • code to identify sex reassignment status (Z87.890-)

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

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

  • Transvestism

    disorder characterized by recurrent, intense sexually arousing fantasies, sexual urges, or behaviors involving cross-dressing in a heterosexual male. the fantasies, urges, or behaviors cause clinically significant distress or impairment in social, occupational or other areas of functioning. (from apa, dsm-iv, 1994)

Convert F64.1 to ICD-9-CMHistory

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

ICD-9-CM
302.85 Gend iden dis,adol/adult
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 F64.1Overview

What is the ICD-10 code for dual role transvestism?

The ICD-10-CM code for dual role transvestism is F64.1 (sometimes written as F641). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is F64.1 (Gender identity disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dual role transvestism on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does F64.1 group to?

When dual role transvestism 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.

Can F64.1 be reported with F64.2?

Not as a rule. The Excludes1 note on F64.1 lists "gender identity disorder in childhood (F64.2)". 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).

Does F64.1 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code to identify sex reassignment status (Z87.890-). The additional code is reported after F64.1.