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v1.0.0
ICD-10 Guide
DiagnosesTransgender

Transgender

ICD-10 Coding for Transgender(F64.0, Z79.890, Z87.890)

PRIMARY SPECIALTYEndocrinology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Transgender?
Essential facts and insights about Transgender

Key Clinical Considerations:

  • Persistent identification with a gender different from assigned sex at birth
  • Significant distress or impairment in social, occupational, or other important areas of functioning
  • Duration of symptoms for at least 6 months

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient's gender identity and history of gender dysphoria
  • Assessment of mental health status and any co-occurring conditions
  • Informed consent for hormone therapy or surgical interventions

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for gender dysphoria coding to avoid misclassification.
  • Common errors include using outdated codes or failing to document the duration of symptoms.

Code Exclusions

Important Exclusions

  • Conditions such as gender nonconformity without distress
  • Alternative codes for other mental health disorders

Related ICD-10 Codes

Primary Codes
F64.0
Transsexualism
F64.1
Gender identity disorder in adolescence or adulthood
Ancillary Codes
Z79.890
Z87.890
Differential Codes
F64.2
F64.2
for patients under 18 years with gender dysphoria.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Endocrinology

Specialty Applications

  • Transgender individuals seeking hormone therapy or surgical interventions
  • Endocrinology clinics specializing in gender-affirming care

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document patient's gender identity, history of gender dysphoria, and any treatment plans.

Billing considerations?

Ensure correct coding for gender-affirming treatments and verify insurance coverage for hormone therapy.