ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesC44.629

C44.629

Billable

Squamous cell carcinoma of skin of left upper limb, including shoulder

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

Code Description

ICD-10 C44.629 is a billable code used to indicate a diagnosis of squamous cell carcinoma of skin of left upper limb, including shoulder.

Key Diagnostic Point:

Squamous cell carcinoma (SCC) is a common form of skin cancer that arises from the squamous cells in the epidermis. This malignancy is often associated with prolonged sun exposure, which can lead to DNA damage in skin cells. The left upper limb, including the shoulder, is a common site for SCC due to its exposure to ultraviolet (UV) radiation. Clinically, SCC may present as a persistent, non-healing sore, a scaly patch, or a wart-like growth. Diagnosis is typically confirmed through a biopsy, which reveals atypical squamous cells. Treatment options include surgical excision, Mohs micrographic surgery, and in some cases, radiation therapy or topical chemotherapy. Surgical margins are critical in SCC management; clear margins are essential to reduce the risk of recurrence. Reconstruction may be necessary depending on the size and location of the excised lesion, with options ranging from simple closure to more complex flap or graft procedures. Regular follow-up is important to monitor for recurrence or new skin cancers, especially in patients with a history of sun exposure or previous skin malignancies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for precise documentation of tumor location and size
  • Requirement for clear surgical margin notation
  • Potential for reconstruction procedures to complicate coding
  • Variability in treatment approaches based on tumor characteristics

Audit Risk Factors

  • Inadequate documentation of surgical margins
  • Failure to specify the exact location of the carcinoma
  • Misclassification of skin cancer type
  • Lack of follow-up documentation for recurrence

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed descriptions of the lesion, biopsy results, and treatment plans.

Common Clinical Scenarios

Diagnosis and treatment of SCC, follow-up for skin cancer surveillance.

Billing Considerations

Ensure clear documentation of margins and any reconstructive procedures performed.

Oncology

Documentation Requirements

Comprehensive treatment plans, including chemotherapy or radiation therapy details if applicable.

Common Clinical Scenarios

Management of advanced SCC, coordination of care with surgical teams.

Billing Considerations

Document any systemic therapies and their effects on the patient's overall health.

Coding Guidelines

Inclusion Criteria

Use C44.629 When
  • According to ICD
  • 10 guidelines, C44
  • 629 should be used when the specific site of the squamous cell carcinoma is documented as the left upper limb, including the shoulder
  • Coders must ensure that the documentation supports the diagnosis and treatment provided

Exclusion Criteria

Do NOT use C44.629 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

11602CPT Code

Excision, malignant skin lesion, excised diameter over 4.0 cm

Clinical Scenario

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

Documentation Requirements

Document the size of the lesion and margins.

Specialty Considerations

Dermatology and surgical oncology should ensure clear communication on 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. C44.629 provides specificity that was not available in ICD-9, enhancing clinical documentation and care coordination.

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. C44.629 provides specificity that was not available in ICD-9, enhancing clinical documentation and care coordination.

Reimbursement & Billing Impact

reimbursement processes. C44.629 provides specificity that was not available in ICD-9, enhancing clinical documentation and care coordination.

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 crucial as it indicates whether the cancer has been completely excised. Clear margins reduce the risk of recurrence and are essential for accurate coding and billing.