F64.1 ICD-10-CM Code: Dual role transvestism
F64.1 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Mental, Behavioral and Neurodevelopmental disorders (F01-F99) / Disorders of adult personality and behavior (F60-F69)
F64.1
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceDual role transvestism
A condition involving periodic wearing of clothes of the opposite sex for sexual excitement, with the person maintaining a primary gender identity.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for F64.1. Check the code and parent instructions in the Code Book.
Excludes 2
Official- fetishistic transvestism (F65.1)
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)Inherited from F01-F99
Related Codes
Includes
Official- disorders of psychological developmentInherited from F01-F99
Excludes 1
Official- gender identity disorder in childhood (F64.2)
Code First
OfficialNo Code First sequencing instructions are included in this display for F64.1. Check the code and parent instructions in the Code Book.
Use Additional
Official- code to identify sex reassignment status (Z87.890)
Code Also
OfficialNo Code Also instructions are included in this display for F64.1. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is F64.1 an HCC code?
No. F64.1 is a billable ICD-10-CM code with no mapping under the current CMS-HCC V28 community payment model, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- F64.1
- Description
- Dual role transvestism
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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What This Code Means
F64.1 is the ICD-10-CM diagnosis code for dual role transvestism. A condition involving periodic wearing of clothes of the opposite sex for sexual excitement, with the person maintaining a primary gender identity. F64.1 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering disorders of adult personality and behavior (f60-f69).
F64.1 is a billable ICD-10-CM code, but no current CMS-HCC V28 community payment mapping is shown, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Distinguish from transsexualism (F64.0) where there is persistent identification with opposite sex.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for F64.1 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Distinguish from transsexualism (F64.0) where there is persistent identification with opposite sex
- •Document that cross-dressing is primarily for sexual gratification and identity remains with biological sex
Excludes 1, Do NOT code together
- gender identity disorder in childhood (F64.2)
Excludes 2, Not included here, may code separately
- fetishistic transvestism (F65.1)
Use Additional Code
- code to identify sex reassignment status (Z87.890)