2026 ICD-10-CM Diagnosis Code F66Other sexual disorders
ICD-10-CM Codes›F01–F99›F60-F69›F66
- Billable — Valid for Submission
- Not Chronic
F66 is a billable ICD-10-CM diagnosis code for other sexual disorders. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 887. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Miscellaneous mental and behavioral disorders/conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abnormal development of sexuality
- Abnormal sexual state
- Abnormal sexual state and development
- Chondrodysplasia with disorder of sex development syndrome
- Difficulty expressing intimacy
- Dissatisfied with sexual relationship
- Ego-dystonic sexual orientation
- Ego-syntonic sexual orientation
- Erotic feeling
- Erotic interest - finding
- Female hypererotism
- Increased libido
- Inhibited sexual desire
- Lecherism
- Libido - finding
- Male hypererotism
- Obscene thoughts
- Overtly sexualized behavior in childhood
- Pure gonadal dysgenesis
- Pure gonadal dysgenesis 46,XY
- Sexual exposure
- Sexual frustration
- Sexual neglect
- Sexual nondevelopment
- Sexual overexposure
- Sexual relationship problem
- Sexual relationship problem due to gender identity confusion
- Sexual relationship problem due to sexual orientation confusion
- Sexual value system confusion
- Sexuality related problem
- Sexualized behavior
- Sexually disinhibited behavior
- Sexually obscene thoughts
- Uncontrollable sexual urge
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Sexual maturation disorder
- Sexual relationship disorder
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Mental Disorders
Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..
The full article covers:
- What are mental disorders?
- What are some types of mental disorders?
- What causes mental disorders?
- Who is at risk for mental disorders?
- How are mental disorders diagnosed?
- What are the treatments for mental disorders?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F66 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F66Overview
What is the ICD-10 code for other sexual disorders?
The ICD-10-CM code for other sexual disorders is F66. It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is F66 (Other sexual disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other sexual disorders on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does F66 group to?
When other sexual disorders is the principal diagnosis on an inpatient stay, it groups to MS-DRG 887 (other Mental Disorder Diagnoses), which carries a relative weight of 1.0709. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of F66?
Under the General Equivalence Mappings, other sexual disorders converts to ICD-9-CM 302.89 (psychosexual dis NEC). The mapping is approximate, so confirm the match fits the documentation.
