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ICD-10 Guide
ICD-10 CodesC44.729

C44.729

Billable

Squamous cell carcinoma of skin of left lower limb, including hip

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

Code Description

ICD-10 C44.729 is a billable code used to indicate a diagnosis of squamous cell carcinoma of skin of left lower limb, including hip.

Key Diagnostic Point:

Squamous cell carcinoma (SCC) is a type of skin cancer that arises from the squamous cells, which are flat cells located in the outer layer of the skin. This specific code, C44.729, refers to SCC located on the left lower limb, including the hip area. SCC is often associated with prolonged sun exposure, which can lead to DNA damage in skin cells. Risk factors include fair skin, a history of sunburns, and immunosuppression. Clinically, SCC may present as a persistent sore, a scaly patch, or a growth that may bleed or crust over. Diagnosis is typically confirmed through a biopsy. Treatment options include surgical excision, Mohs micrographic surgery, and in some cases, radiation therapy. Surgical margins are critical in ensuring complete removal of the cancerous tissue, and reconstruction may be necessary depending on the size and location of the excised area. Regular follow-up is essential to monitor for recurrence or new skin cancers, especially in patients with a history of skin malignancies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for precise documentation of tumor location and size
  • Variability in surgical margins based on tumor characteristics
  • Potential for reconstruction procedures post-excision
  • Differentiation from other skin lesions such as basal cell carcinoma

Audit Risk Factors

  • Inadequate documentation of surgical margins
  • Failure to document the size and depth of the tumor
  • Lack of follow-up documentation post-surgery
  • Misclassification of the type of skin cancer

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 skin cancers, including SCC and basal cell carcinoma.

Billing Considerations

Ensure accurate staging and grading of the tumor for appropriate coding.

Surgical Oncology

Documentation Requirements

Operative reports detailing excision margins and reconstruction techniques.

Common Clinical Scenarios

Surgical removal of skin cancers and subsequent reconstruction.

Billing Considerations

Documenting the rationale for surgical margins and any complications.

Coding Guidelines

Inclusion Criteria

Use C44.729 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the site, laterality, and type of skin cancer
  • Include any relevant patient history that may affect treatment and prognosis

Exclusion Criteria

Do NOT use C44.729 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

11602CPT Code

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

Clinical Scenario

Used when excising a large SCC on the left lower limb.

Documentation Requirements

Operative report detailing the size and location of the lesion.

Specialty Considerations

Ensure the excision is documented with clear margins.

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. C44.729 provides detailed information about the location and type of cancer, which is crucial for treatment planning and epidemiological studies.

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. C44.729 provides detailed information about the location and type of cancer, which is crucial for treatment planning and epidemiological studies.

Reimbursement & Billing Impact

reimbursement processes. C44.729 provides detailed information about the location and type of cancer, which is crucial for treatment planning and epidemiological studies.

Resources

Clinical References

  • •
    American Academy of Dermatology

Coding & Billing References

  • •
    American Academy of Dermatology

Frequently Asked Questions

What is the significance of documenting surgical margins?

Documenting surgical margins is critical to ensure that all cancerous cells have been removed, reducing the risk of recurrence. It also impacts the coding and billing process, as different margins may require different coding.