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ICD-10 Guide
ICD-10 CodesC44.71

C44.71

Billable

Basal cell carcinoma of skin of lower limb, including hip

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

Code Description

ICD-10 C44.71 is a billable code used to indicate a diagnosis of basal cell carcinoma of skin of lower limb, including hip.

Key Diagnostic Point:

Basal cell carcinoma (BCC) is the most common form of skin cancer, primarily arising from the basal cells in the epidermis. This malignancy is often associated with chronic sun exposure, particularly in fair-skinned individuals. BCC of the lower limb, including the hip, can present as a pearly or waxy bump, a flat, flesh-colored lesion, or a scar-like area. It is typically slow-growing and rarely metastasizes, but it can cause significant local tissue destruction if left untreated. Surgical excision is the most common treatment, with the goal of achieving clear surgical margins to minimize recurrence. Reconstruction may be necessary depending on the size and location of the excised lesion, particularly in cosmetically sensitive areas. Proper documentation of the tumor size, location, and margins is essential for accurate coding and reimbursement. Additionally, the patient's history of sun exposure and any prior skin cancers should be noted to provide context for the diagnosis and treatment plan.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for precise documentation of tumor size and margins
  • Variability in presentation and treatment options
  • Potential for reconstruction procedures post-excision
  • Differentiation from other skin lesions

Audit Risk Factors

  • Inadequate documentation of surgical margins
  • Failure to document prior skin cancers or treatments
  • Misclassification of the lesion type
  • Lack of clarity on the extent of surgical excision

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed descriptions of the lesion, including size, location, and histological findings.

Common Clinical Scenarios

Diagnosis and treatment of BCC, Mohs micrographic surgery, and follow-up care.

Billing Considerations

Ensure accurate coding of excision and any reconstruction procedures performed.

Oncology

Documentation Requirements

Comprehensive treatment plans, including any adjuvant therapies and follow-up protocols.

Common Clinical Scenarios

Management of recurrent BCC and coordination of care with dermatology.

Billing Considerations

Document any systemic therapies if applicable, although rare for BCC.

Coding Guidelines

Inclusion Criteria

Use C44.71 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, treatment, and any associated conditions
  • Include details about the location and size of the lesion, as well as the surgical approach used

Exclusion Criteria

Do NOT use C44.71 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 lower limb.

Documentation Requirements

Document size, location, and margins of the excised lesion.

Specialty Considerations

Dermatologists should ensure accurate coding of the excision based on the complexity.

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. C44.71 provides a clear distinction for basal cell carcinoma of the lower limb, enhancing clinical understanding and treatment tracking.

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. C44.71 provides a clear distinction for basal cell carcinoma of the lower limb, enhancing clinical understanding and treatment tracking.

Reimbursement & Billing Impact

reimbursement processes. C44.71 provides a clear distinction for basal cell carcinoma of the lower limb, enhancing clinical understanding and treatment tracking.

Resources

Clinical References

  • •
    American Academy of Dermatology

Coding & Billing References

  • •
    American Academy of Dermatology

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 while achieving clear margins. Mohs micrographic surgery is often used for high-risk areas.