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v1.0.0
ICD-10 Guide
DiagnosesSolar Lentigo

Solar Lentigo

ICD-10 Coding for Solar Lentigo(L81.4)

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

Diagnosis Overview

What is Solar Lentigo?
Essential facts and insights about Solar Lentigo

Key Clinical Considerations:

  • Flat, brown or black spots on sun-exposed skin
  • Dermatoscopic examination may reveal a network of pigment
  • Typically asymptomatic, may be confused with other pigmented lesions

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of sun exposure
  • Description of lesion characteristics (size, shape, color)
  • Photographic evidence of lesions may be beneficial

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: Use L81.1 for solar lentigo; differentiate from other skin lesions.
  • Common errors: Misclassifying as malignant lesions or other benign conditions.

Code Exclusions

Important Exclusions

  • Melanoma and other skin cancers
  • Seborrheic keratosis and lentigo maligna

Related ICD-10 Codes

Primary Codes
L81.1
Solar lentigo
Ancillary Codes
Z77.21
Differential Codes
C43.9
L82.1

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Dermatology

Specialty Applications

  • Older adults with significant sun exposure history
  • Dermatology clinics and general practice settings

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 the size, location, and characteristics of the lesions.

Billing considerations?

Ensure proper coding to avoid denials; check for coverage of cosmetic vs. medically necessary treatments.