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ICD-10 Guide
ICD-10 CodesL81.3

L81.3

Billable

Café au lait spots

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 L81.3 is a billable code used to indicate a diagnosis of café au lait spots.

Key Diagnostic Point:

Café au lait spots are flat, pigmented lesions that vary in size and are typically light brown in color, resembling the color of coffee with milk. These skin manifestations are often present at birth or develop in early childhood. They are caused by an increase in melanin production in the skin and are most commonly found on the trunk, buttocks, and extremities. While café au lait spots are benign and do not pose any health risks, their presence can be associated with certain genetic conditions, such as neurofibromatosis type 1 (NF1). The diagnosis is primarily clinical, based on the appearance and distribution of the spots, and may require genetic counseling if multiple lesions are present. Disease progression is generally stable, but the number and size of spots can increase with age. Diagnostic considerations include a thorough patient history and physical examination to rule out associated syndromes. In cases where café au lait spots are numerous, further evaluation for underlying conditions may be warranted.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires clinical evaluation and potential genetic testing if associated with NF1.
  • Treatment complexity: Generally does not require treatment unless associated with other conditions.
  • Documentation requirements: Requires detailed documentation of the number, size, and location of spots.
  • Coding specificity: Specific to café au lait spots, but differentiation from other pigmented lesions is necessary.

Audit Risk Factors

  • Common coding errors: Misidentifying café au lait spots as other pigmented lesions.
  • Documentation gaps: Incomplete patient history or lack of genetic evaluation when indicated.
  • Billing challenges: Potential denials if associated conditions are not documented.

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Genetics

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Café au lait spots are common in the general population, with a higher prevalence in individuals with neurofibromatosis type 1. Their clinical significance lies in the potential for associated genetic conditions, which can impact patient management and family counseling. Understanding the epidemiology of café au lait spots can help healthcare providers identify at-risk individuals and improve population health outcomes through early intervention and monitoring.

ICD-9 vs ICD-10

Café au lait spots are common in the general population, with a higher prevalence in individuals with neurofibromatosis type 1. Their clinical significance lies in the potential for associated genetic conditions, which can impact patient management and family counseling. Understanding the epidemiology of café au lait spots can help healthcare providers identify at-risk individuals and improve population health outcomes through early intervention and monitoring.

Reimbursement & Billing Impact

Reimbursement considerations may vary based on the presence of associated conditions, such as neurofibromatosis. Common denials can occur if the documentation does not adequately describe the lesions or if there is a lack of follow-up for potential genetic evaluation. Best practices include thorough documentation of the clinical findings and any recommendations for further testing or monitoring.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for L00-L99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for L00-L99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by L81.3?

L81.3 specifically covers café au lait spots, which are benign pigmented lesions. It is important to note that while the spots themselves are not harmful, their presence can indicate a higher risk for neurofibromatosis type 1 and other genetic conditions.

When should L81.3 be used instead of related codes?

L81.3 should be used when documenting café au lait spots specifically. If the lesions are part of a broader condition or if they are atypical in appearance, other codes may be more appropriate.

What documentation supports L81.3?

Documentation should include a detailed description of the café au lait spots, including their size, number, and location. Family history and any associated symptoms should also be documented to support the diagnosis and rule out related conditions.