ICD-10-CM Code For Other Sexual Disorders: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group F66 includes conditions characterized by enduring disturbances in sexual preference, identity, or behavior that result in distress, impairment, or social dysfunction, such as sexual maturation disorders and gender identity-related difficulties. These ICD-10-CM diagnosis codes are used to document behavioral health presentations where sexual identity or preference contributes to clinical symptoms, capturing the nature and severity of psychological and social impact. Accurate coding within the ICD-10-CM F66 group supports complete clinical documentation and appropriate reimbursement.

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ICD-10-CM F66: Other Sexual Disorders Overview

The ICD-10-CM F66 group covers persistent patterns of sexual preference or identity that are associated with significant distress or impairment in functioning. These conditions relate to adult personality and behavior affecting sexual orientation and identity rather than a primary medical condition. Accurate coding matters for reimbursement because it documents clinical complexity and justifies medical necessity for behavioral health services.

When to Use

Use a code from this group when a patient presents with persistent sexual preference or identity issues that cause clinically significant distress or functional impairment. Select the specific code that best describes the documented diagnosis, severity, and any associated psychosocial impact.

ICD-10-CM Codes

1 rows

ICD-10-CM Code	Description
F66	Other sexual disorders

DRG Codes

1 rows

DRG Code	Description
887	Other Mental Disorder Diagnoses

Typical Clinical Scenarios

A 28-year-old patient presents to outpatient psychiatry reporting long-standing conflict between their experienced gender-related sexual interests and social relationships, causing marked distress and impairment in interpersonal and occupational functioning; evaluation identifies pervasive difficulty integrating sexual preferences into healthy adult relationships without evidence of a primary mood or psychotic disorder, leading to assignment of a code from this group. Typical codes: F66
A 45-year-old referred from primary care for chronic interpersonal problems and recurrent relationship difficulties tied to atypical sexual behaviors and preferences that the patient finds distressing; the clinician documents enduring patterns of sexual attitude and behavior that began in adolescence and continue to cause social and occupational impairment, prompting use of a code from this group for the chronic personality/behavior disturbance. Typical codes: F66
An adult brought to the emergency department after a domestic dispute where atypical sexual behavior contributed to acute conflict; after medical clearance and psychiatric assessment, providers identify a preexisting disorder of adult sexual personality/behavior as a contributing comorbidity that impacts risk and management, and assign a code from this group to capture the comorbid condition. Typical codes: F66

Related Codes

F60-SPECIFIC-PERSONALITY-DISORDERS

ICD-10-CM Code For Specific Personality Disorders: Group Overview

F63-IMPULSE-DISORDERS

ICD-10-CM Code For Impulse Disorders: Group Overview

F64-GENDER-IDENTITY-DISORDERS

ICD-10-CM Code For Gender Identity Disorders: Group Overview

F68-OTHER-DISORDERS-OF-ADULT-PERSONALITY-AND-BEHAVIOR

ICD-10-CM Code For Other Disorders Of Adult Personality And Behavior: Group Overview

F69-UNSPECIFIED-DISORDER-OF-ADULT-PERSONALITY-AND-BEHAVIOR

ICD-10-CM Code For Unspecified Disorder Of Adult Personality And Behavior: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

1 rows

ICD-10-CM Code	Description
F66	Other sexual disorders

DRG Codes

1 rows

DRG Code	Description
887	Other Mental Disorder Diagnoses

Typical Clinical Scenarios

A 28-year-old patient presents to outpatient psychiatry reporting long-standing conflict between their experienced gender-related sexual interests and social relationships, causing marked distress and impairment in interpersonal and occupational functioning; evaluation identifies pervasive difficulty integrating sexual preferences into healthy adult relationships without evidence of a primary mood or psychotic disorder, leading to assignment of a code from this group. Typical codes: F66
A 45-year-old referred from primary care for chronic interpersonal problems and recurrent relationship difficulties tied to atypical sexual behaviors and preferences that the patient finds distressing; the clinician documents enduring patterns of sexual attitude and behavior that began in adolescence and continue to cause social and occupational impairment, prompting use of a code from this group for the chronic personality/behavior disturbance. Typical codes: F66
An adult brought to the emergency department after a domestic dispute where atypical sexual behavior contributed to acute conflict; after medical clearance and psychiatric assessment, providers identify a preexisting disorder of adult sexual personality/behavior as a contributing comorbidity that impacts risk and management, and assign a code from this group to capture the comorbid condition. Typical codes: F66

Related Codes

F60-SPECIFIC-PERSONALITY-DISORDERS

ICD-10-CM Code For Specific Personality Disorders: Group Overview

F63-IMPULSE-DISORDERS

ICD-10-CM Code For Impulse Disorders: Group Overview

F64-GENDER-IDENTITY-DISORDERS

ICD-10-CM Code For Gender Identity Disorders: Group Overview

F68-OTHER-DISORDERS-OF-ADULT-PERSONALITY-AND-BEHAVIOR

ICD-10-CM Code For Other Disorders Of Adult Personality And Behavior: Group Overview

F69-UNSPECIFIED-DISORDER-OF-ADULT-PERSONALITY-AND-BEHAVIOR

ICD-10-CM Code For Unspecified Disorder Of Adult Personality And Behavior: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Other Sexual Disorders: Group Overview

Sign up for ICD-10-CM Code For Other Sexual Disorders: Group Overview policy alerts

ICD-10-CM F66: Other Sexual Disorders Overview

ICD-10-CM Code For Other Sexual Disorders: Group Overview

Sign up for ICD-10-CM Code For Other Sexual Disorders: Group Overview policy alerts

ICD-10-CM F66: Other Sexual Disorders Overview

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What conditions are included in ICD-10-CM group `F66`?

When should a clinician use a code from `F66` in documentation?

How does accurate coding of `F66` affect reimbursement?

What type of care settings is `F66` most relevant to?

Which DRG is related to ICD-10-CM group `F66`?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

What conditions are included in ICD-10-CM group `F66`?

When should a clinician use a code from `F66` in documentation?

How does accurate coding of `F66` affect reimbursement?

What type of care settings is `F66` most relevant to?

Which DRG is related to ICD-10-CM group `F66`?

References