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ICD-10 Guide
ICD-10 CodesC44.211

C44.211

Billable

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

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

Code Description

ICD-10 C44.211 is a billable code used to indicate a diagnosis of basal cell carcinoma of skin of unspecified 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 pertains to BCC located on the skin of the unspecified ear and external auricular canal. BCC is typically associated with prolonged sun exposure, which damages the skin and leads to mutations in the DNA of basal cells. Clinically, BCC may present as a pearly or waxy bump, a flat, flesh-colored lesion, or a scar-like area. It is crucial to note that while BCC is rarely metastatic, it can cause significant local destruction and disfigurement if left untreated. Surgical excision is the primary treatment modality, and achieving clear surgical margins is essential to minimize recurrence. Reconstruction may be necessary depending on the size and location of the excised lesion, particularly in cosmetically sensitive areas like the ear. Proper coding requires accurate documentation of the lesion's location, size, and treatment performed, as well as any complications or additional procedures related to reconstruction.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in documentation of lesion size and location
  • Need for precise surgical margin descriptions
  • Potential for multiple procedures (excision and reconstruction)
  • Differentiation from other skin lesions

Audit Risk Factors

  • Inadequate documentation of surgical margins
  • Failure to document the specific location of the carcinoma
  • Lack of clarity on the type of reconstruction performed
  • Misclassification of the lesion type

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed descriptions of the lesion, treatment plan, and follow-up care.

Common Clinical Scenarios

Diagnosis and treatment of BCC, Mohs micrographic surgery, and post-operative care.

Billing Considerations

Ensure accurate coding of the surgical procedure and any reconstruction performed.

Plastic Surgery

Documentation Requirements

Comprehensive records of reconstructive procedures and patient consent.

Common Clinical Scenarios

Reconstruction after excision of BCC, management of complications.

Billing Considerations

Document the extent of tissue loss and the techniques used for reconstruction.

Coding Guidelines

Inclusion Criteria

Use C44.211 When
  • Follow the official ICD
  • CM guidelines for coding neoplasms, ensuring accurate documentation of the site, type, and behavior of the tumor
  • Include any relevant surgical procedures and follow
  • up care in the coding process

Exclusion Criteria

Do NOT use C44.211 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

17311CPT Code

Excision, malignant skin lesion

Clinical Scenario

Used when excising a BCC from the ear.

Documentation Requirements

Document the size of the lesion and margins.

Specialty Considerations

Dermatologists and plastic surgeons should ensure accurate coding of the excision and any reconstruction.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of skin cancers, improving the accuracy of data collection and reimbursement processes. C44.211 provides a clear designation for BCC of the ear, which aids in treatment planning and tracking outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of skin cancers, improving the accuracy of data collection and reimbursement processes. C44.211 provides a clear designation for BCC of the ear, which aids in treatment planning and tracking outcomes.

Reimbursement & Billing Impact

reimbursement processes. C44.211 provides a clear designation for BCC of the ear, which aids in treatment planning and tracking outcomes.

Resources

Clinical References

  • •
    American Academy of Dermatology
  • •
    National Cancer Institute - Skin Cancer

Coding & Billing References

  • •
    American Academy of Dermatology
  • •
    National Cancer Institute - Skin Cancer

Frequently Asked Questions

What is the primary treatment for basal cell carcinoma?

The primary treatment for basal cell carcinoma is surgical excision, which aims to remove the cancerous tissue along with a margin of healthy skin to ensure complete removal.

How can I differentiate basal cell carcinoma from other skin lesions?

Basal cell carcinoma typically appears as a pearly bump, a flat lesion, or a sore that does not heal. A biopsy is necessary for definitive diagnosis.