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ICD-10 Guide
ICD-10 CodesC44.212

C44.212

Billable

Basal cell carcinoma of skin of right ear and external auricular canal

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

Code Description

ICD-10 C44.212 is a billable code used to indicate a diagnosis of basal cell carcinoma of skin of right ear and external auricular canal.

Key Diagnostic Point:

Basal cell carcinoma (BCC) is the most common form of skin cancer, arising from the basal cells in the epidermis. This specific code, C44.212, denotes BCC located on the skin of the right ear and external auricular canal. BCC is typically associated with prolonged sun exposure, making it prevalent in individuals with fair skin or those who have had significant UV exposure. Clinically, BCC may present as a pearly or waxy bump, a flat, flesh-colored lesion, or a scar-like area. Diagnosis is confirmed through a biopsy. Treatment often involves surgical excision, Mohs micrographic surgery, or topical chemotherapy, depending on the size and location of the tumor. Surgical margins are critical in ensuring complete removal of the cancerous tissue, as incomplete excision can lead to recurrence. Reconstruction may be necessary post-surgery, especially in cosmetically sensitive areas like the ear, to restore function and appearance. Follow-up care is essential to monitor for recurrence and manage any complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Specificity of location (right ear and external auricular canal)
  • Need for accurate documentation of surgical margins
  • Potential for reconstruction procedures post-excision
  • Differentiation from other skin lesions

Audit Risk Factors

  • Inadequate documentation of surgical margins
  • Failure to document the specific location of the carcinoma
  • Lack of follow-up notes regarding recurrence
  • Improper coding of reconstruction procedures

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed clinical notes including lesion size, location, and treatment plan.

Common Clinical Scenarios

Diagnosis and treatment of skin cancers, including BCC, SCC, and melanoma.

Billing Considerations

Ensure accurate documentation of the type of skin cancer and treatment modalities used.

Plastic Surgery

Documentation Requirements

Surgical notes detailing the excision and reconstruction procedures performed.

Common Clinical Scenarios

Reconstruction following excision of skin cancers, particularly in cosmetically sensitive areas.

Billing Considerations

Document the necessity of reconstruction and the techniques used to restore appearance and function.

Coding Guidelines

Inclusion Criteria

Use C44.212 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the tumor's location, size, and treatment
  • Include details on surgical margins and any reconstruction performed
  • Ensure compliance with local payer policies regarding skin cancer coding

Exclusion Criteria

Do NOT use C44.212 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

17311CPT Code

Mohs micrographic surgery

Clinical Scenario

Used for excision of BCC on the right ear.

Documentation Requirements

Document the size of the lesion and surgical margins.

Specialty Considerations

Dermatologists should ensure accurate coding based on the complexity of the Mohs procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding skin cancers, including BCC. This has improved the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding skin cancers, including BCC. This has improved the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American Academy of Dermatology

Coding & Billing References

  • •
    American Academy of Dermatology

Frequently Asked Questions

What is the primary cause of basal cell carcinoma?

The primary cause of basal cell carcinoma is prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds.