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ICD-10 Guide
ICD-10 CodesC44.191

C44.191

Billable

Other specified malignant neoplasm of skin of unspecified eyelid, including canthus

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

Code Description

ICD-10 C44.191 is a billable code used to indicate a diagnosis of other specified malignant neoplasm of skin of unspecified eyelid, including canthus.

Key Diagnostic Point:

C44.191 refers to a malignant neoplasm of the skin located on the eyelid or canthus that does not fall into more specific categories of skin cancer. This code is used when the malignancy is confirmed but does not fit the definitions of more common skin cancers such as basal cell carcinoma or squamous cell carcinoma. Skin cancers in this area can be influenced by factors such as sun exposure, which is a significant risk factor due to the thin skin and high UV exposure of the eyelids. Surgical margins are critical in the treatment of these malignancies, as complete excision is necessary to prevent recurrence. Reconstruction may be required post-excision to restore the eyelid's function and appearance, which can involve complex surgical techniques. Accurate coding is essential for proper treatment planning and reimbursement, as well as for tracking the incidence of skin cancers in this sensitive area.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in documentation of malignancy type
  • Need for precise location specification
  • Potential for overlapping codes with other skin cancers
  • Complexity of surgical procedures and reconstruction

Audit Risk Factors

  • Inadequate documentation of malignancy type
  • Failure to specify eyelid location
  • Incorrect coding of surgical procedures
  • Lack of clarity in treatment plans

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed pathology reports, surgical notes, and treatment plans are essential for accurate coding.

Common Clinical Scenarios

Diagnosis and treatment of skin cancers, including Mohs surgery for excision.

Billing Considerations

Ensure clear documentation of margins and reconstruction details.

Ophthalmology

Documentation Requirements

Documentation must include visual acuity assessments and functional impact of eyelid lesions.

Common Clinical Scenarios

Management of eyelid tumors and post-surgical care.

Billing Considerations

Focus on the functional implications of eyelid cancers and the need for reconstructive surgery.

Coding Guidelines

Inclusion Criteria

Use C44.191 When
  • Follow official ICD
  • CM coding guidelines, ensuring that the code is used only when the malignancy is confirmed and documented

Exclusion Criteria

Do NOT use C44.191 When
  • Exclude conditions that are not malignant or do not involve the eyelid

Related ICD-10 Codes

Related CPT Codes

17311CPT Code

Mohs micrographic surgery, face, ears, eyelids, scalp

Clinical Scenario

Used for excision of malignant neoplasm on the eyelid.

Documentation Requirements

Surgical notes must detail the excision and margins.

Specialty Considerations

Dermatologists and ophthalmologists must coordinate care.

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. C44.191 provides a more precise classification for malignant neoplasms of the eyelid, enhancing clinical understanding and treatment planning.

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. C44.191 provides a more precise classification for malignant neoplasms of the eyelid, enhancing clinical understanding and treatment planning.

Reimbursement & Billing Impact

reimbursement processes. C44.191 provides a more precise classification for malignant neoplasms of the eyelid, enhancing clinical understanding and treatment planning.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the significance of specifying the eyelid location in C44.191?

Specifying the eyelid location is crucial for accurate coding and treatment planning, as different locations may have varying implications for surgical approach and reconstruction.