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ICD-10 Guide
ICD-10 CodesC44.7

C44.7

Billable

Other and unspecified malignant neoplasm of skin of lower limb, including hip

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

Code Description

ICD-10 C44.7 is a billable code used to indicate a diagnosis of other and unspecified malignant neoplasm of skin of lower limb, including hip.

Key Diagnostic Point:

C44.7 refers to malignant neoplasms of the skin located on the lower limb, including the hip, that are not classified elsewhere. This category encompasses a variety of skin cancers, including but not limited to squamous cell carcinoma, basal cell carcinoma, and melanoma, which may arise due to factors such as chronic sun exposure, genetic predisposition, or other environmental influences. The diagnosis of skin cancer in this region often requires a thorough clinical examination, histopathological evaluation, and imaging studies to assess the extent of the disease. Surgical intervention is a common treatment modality, which may involve excision of the tumor with clear surgical margins to ensure complete removal of malignant cells. Reconstruction may be necessary depending on the size and location of the excised lesion, and it can involve techniques such as skin grafting or flap surgery. Accurate coding is essential for proper treatment planning, reimbursement, and tracking of cancer incidence and outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of skin cancer types that can fall under this code
  • Need for precise documentation of tumor characteristics
  • Variability in surgical margins and reconstruction techniques
  • Potential for overlapping codes with other skin malignancies

Audit Risk Factors

  • Inadequate documentation of tumor size and margins
  • Failure to specify the type of malignant neoplasm
  • Lack of clarity on the surgical procedure performed
  • Insufficient detail in pathology reports

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed descriptions of lesions, biopsy results, and treatment plans.

Common Clinical Scenarios

Diagnosis and treatment of skin cancers, including Mohs micrographic surgery.

Billing Considerations

Ensure accurate coding based on histological findings and treatment modalities.

Oncology

Documentation Requirements

Comprehensive cancer staging, treatment plans, and follow-up care documentation.

Common Clinical Scenarios

Management of advanced skin cancers requiring systemic therapy.

Billing Considerations

Documentation must reflect the multidisciplinary approach to treatment.

Coding Guidelines

Inclusion Criteria

Use C44.7 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used for confirmed diagnoses of malignant neoplasms of the skin
  • specified skin conditions
  • Document the specific type of malignancy when possible

Exclusion Criteria

Do NOT use C44.7 When
  • Exclude benign lesions and non

Related ICD-10 Codes

Related CPT Codes

11600CPT Code

Excision, malignant skin lesion, face, ears, scalp, neck

Clinical Scenario

Used for excision of malignant skin lesions on the lower limb.

Documentation Requirements

Document size, location, and type of lesion excised.

Specialty Considerations

Dermatology and surgical oncology should ensure accurate coding based on the procedure performed.

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. C44.7 provides a distinct code for malignant neoplasms of the lower limb, facilitating better tracking of treatment outcomes and resource allocation.

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. C44.7 provides a distinct code for malignant neoplasms of the lower limb, facilitating better tracking of treatment outcomes and resource allocation.

Reimbursement & Billing Impact

reimbursement processes. C44.7 provides a distinct code for malignant neoplasms of the lower limb, facilitating better tracking of treatment outcomes and resource allocation.

Resources

Clinical References

  • •
    American Academy of Dermatology
  • •
    National Cancer Institute

Coding & Billing References

  • •
    American Academy of Dermatology
  • •
    National Cancer Institute

Frequently Asked Questions

What types of skin cancers are included under C44.7?

C44.7 includes various malignant neoplasms of the skin, such as squamous cell carcinoma, basal cell carcinoma, and melanoma, specifically located on the lower limb and hip.

How do I determine if a lesion is malignant?

A biopsy is typically required to confirm malignancy. Histopathological examination will provide definitive diagnosis and should be documented in the medical record.