ICD-10 Guide

Skin Discoloration

ICD-10 Coding for Skin Discoloration(L81.0, L80)

PRIMARY SPECIALTYDermatology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Skin Discoloration?

Essential facts and insights about Skin Discoloration

Key Clinical Considerations:

Changes in skin color (hyperpigmentation, hypopigmentation)
Skin biopsy or dermatoscopy findings
Presence of associated symptoms (itching, pain, etc.)

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history including onset and duration of discoloration
Detailed description of skin lesions
Photographic evidence of skin changes

Coding Guidelines

Usage Guidelines & Examples

Use L81.9 for unspecified pigmentation disorders; L30.9 for dermatitis-related discoloration.
Common errors include using general codes without specifying the type of discoloration.

Code Exclusions

Important Exclusions

Conditions like vitiligo or melasma that have specific codes.
Alternative codes for related skin disorders.

Specialty Focus

Primary Specialty

Dermatology

Specialty Applications

All age groups, particularly those with skin conditions or sun exposure.
Dermatology clinics, primary care settings, and cosmetic practices.

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?

Include detailed patient history and physical exam findings.

Billing considerations?

Ensure accurate coding to reflect the specific type of discoloration.

Skin Discoloration

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?

Skin Discoloration

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?