F66 Other sexual disorders

The ICD-10-CM code for Other sexual disorders is F66 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

5: Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

Section

F60-F69: Disorders of adult personality and behavior (F60-F69)

Category F66

1 code (1 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to F66:

• Problem (with) (related to) › psychosexual (development)
• Disorder (of) › sexual › relationship
• Disorder (of) › psychosexual › development
• Disorder (of) › gender-identity or -role › effect on relationship
• Disorder (of) › sexual › maturation
• Disorder (of) › gender-identity or -role › uncertainty
• Disorder (of) › relationship › due to sexual orientation
• Problem (with) (related to) › marital › involving › gender identity

Inclusion Terms

• Sexual maturation disorder
• Sexual relationship disorder

U.S. Hospital Utilization

• An estimated 120 U.S. inpatient stays in 2023 included F66 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Pain disorders related to psychological factors (TOC entry)

a. Pain disorders related to psychological factors ..................................................................... 43

Psychoactive substance use disorders (TOC entry)

b. Mental and behavioral disorders due to psychoactive substance use ................................... 43

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)