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v1.0.0
ICD-10 Guide
DiagnosesMilia

Milia

ICD-10 Coding for Milia(L72.0)

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

Diagnosis Overview

What is Milia?
Essential facts and insights about Milia

Key Clinical Considerations:

  • Small, white cysts on the skin, typically around the eyes, cheeks, and forehead
  • Histological examination may show keratin-filled cysts
  • Physical exam reveals firm, dome-shaped lesions

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of skin lesions and any associated symptoms
  • Use of terms like 'milia', 'epidermal cysts', or 'keratin cysts'
  • Examples include noting the size, location, and number of lesions

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding skin lesions to avoid miscoding
  • Common errors include confusing milia with other cystic lesions

Code Exclusions

Important Exclusions

  • Sebaceous cysts and other types of epidermal cysts
  • Alternative codes for similar lesions such as L72.1 (other cysts of skin)

Related ICD-10 Codes

Primary Codes
L72.0
Milia
Ancillary Codes
Z91.89
Differential Codes
L74.0
L70.9

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Dermatology

Specialty Applications

  • Common in infants and adults, particularly those with oily skin
  • Typically seen in outpatient dermatology 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 location, size, and number of milia present.

Billing considerations?

Ensure accurate coding to reflect the diagnosis and any procedures performed.