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ICD-10 Guide
ICD-10 CodesD03.12

D03.12

Billable

Melanoma in situ of left eyelid, including canthus

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 D03.12 is a billable code used to indicate a diagnosis of melanoma in situ of left eyelid, including canthus.

Key Diagnostic Point:

Melanoma in situ of the left eyelid, including the canthus, is a localized form of skin cancer characterized by the presence of atypical melanocytes confined to the epidermis. This condition is considered a precursor to invasive melanoma and is typically asymptomatic in its early stages. The left eyelid, being a delicate area, requires careful monitoring due to its proximity to the eye and potential for cosmetic and functional impairment. Diagnosis is usually made through a biopsy, which reveals the presence of atypical melanocytes. Treatment often involves surgical excision, and the prognosis is generally favorable when detected early. However, there is a risk of progression to invasive melanoma if left untreated, necessitating regular surveillance and follow-up care. Patients are advised to undergo periodic skin examinations and to be vigilant for any changes in the lesion's appearance, such as changes in color, size, or shape.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Specificity of the location (left eyelid, including canthus)
  • Need for precise documentation of the biopsy results
  • Potential for misclassification with other skin lesions
  • Variability in treatment protocols among specialties

Audit Risk Factors

  • Inadequate documentation of biopsy results
  • Failure to document follow-up care and surveillance
  • Misinterpretation of lesion characteristics
  • Inconsistent coding of related procedures

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Complete biopsy reports, treatment plans, and follow-up notes.

Common Clinical Scenarios

Diagnosis and treatment of melanoma in situ, follow-up surveillance for recurrence.

Billing Considerations

Ensure accurate documentation of lesion characteristics and treatment outcomes.

Ophthalmology

Documentation Requirements

Detailed notes on ocular health and any impact on vision.

Common Clinical Scenarios

Management of eyelid lesions affecting vision or requiring surgical intervention.

Billing Considerations

Coordination with dermatology for comprehensive care.

Coding Guidelines

Inclusion Criteria

Use D03.12 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, treatment, and follow
  • up care
  • Include specific details about the location and characteristics of the melanoma

Exclusion Criteria

Do NOT use D03.12 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

11600CPT Code

Excision, malignant skin lesion, face, ears, scalp, neck; excised diameter over 4.0 cm

Clinical Scenario

Used when excising melanoma in situ from the eyelid.

Documentation Requirements

Document the size of the lesion and margins obtained.

Specialty Considerations

Ensure coordination between dermatology and ophthalmology for eyelid lesions.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of melanoma in situ, improving the accuracy of patient records and treatment tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of melanoma in situ, improving the accuracy of patient records and treatment tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of melanoma in situ, improving the accuracy of patient records and treatment tracking.

Resources

Clinical References

  • •
    American Academy of Dermatology

Coding & Billing References

  • •
    American Academy of Dermatology

Frequently Asked Questions

What is the significance of coding melanoma in situ?

Coding melanoma in situ accurately is crucial for tracking treatment outcomes, ensuring appropriate follow-up care, and understanding the risk of progression to invasive melanoma.