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ICD-10 Guide
ICD-10 CodesC44.42

C44.42

Billable

Squamous cell carcinoma of skin of scalp and neck

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

Code Description

ICD-10 C44.42 is a billable code used to indicate a diagnosis of squamous cell carcinoma of skin of scalp and neck.

Key Diagnostic Point:

Squamous cell carcinoma (SCC) of the skin is a malignant tumor arising from the squamous cells, which are flat cells located in the outer layer of the skin. This type of cancer is particularly prevalent in areas of the body that are frequently exposed to the sun, such as the scalp and neck. Risk factors include prolonged sun exposure, fair skin, and a history of sunburns. SCC can present as a persistent sore, a growth that bleeds or crusts, or a rough patch of skin that may be mistaken for a benign condition. Diagnosis typically involves a biopsy to confirm malignancy. Treatment options vary based on the size and location of the tumor and may include surgical excision, Mohs micrographic surgery, or radiation therapy. Surgical margins are critical in ensuring complete removal of the cancerous tissue, and reconstruction may be necessary to restore the appearance and function of the affected area. Follow-up care is essential to monitor for recurrence and manage any complications from treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and symptoms of SCC
  • Need for precise documentation of surgical margins
  • Potential for reconstruction procedures post-excision
  • Differentiation from other skin lesions

Audit Risk Factors

  • Inadequate documentation of tumor size and margins
  • Failure to specify the location accurately
  • Misclassification of the tumor type
  • Lack of follow-up documentation

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

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

Common Clinical Scenarios

Diagnosis and treatment of SCC, follow-up for recurrence, and management of complications.

Billing Considerations

Ensure accurate coding of excision margins and any reconstructive procedures performed.

Oncology

Documentation Requirements

Comprehensive treatment plans, including chemotherapy or radiation therapy details.

Common Clinical Scenarios

Management of advanced SCC, coordination of care with dermatology, and monitoring for metastasis.

Billing Considerations

Document any systemic therapies and their effects on the patient’s condition.

Coding Guidelines

Inclusion Criteria

Use C44.42 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, treatment, and any associated procedures
  • Include details about the location and size of the tumor, as well as the surgical approach used

Exclusion Criteria

Do NOT use C44.42 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

11600CPT Code

Excision, malignant skin lesion

Clinical Scenario

Used when excising SCC from the scalp or neck.

Documentation Requirements

Document size of lesion, margins, and any reconstruction performed.

Specialty Considerations

Dermatologists should ensure accurate coding of excision 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.

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.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American Academy of Dermatology

Coding & Billing References

  • •
    American Academy of Dermatology

Frequently Asked Questions

What are the common treatments for C44.42?

Common treatments include surgical excision, Mohs micrographic surgery, and radiation therapy, depending on the tumor's size and location.