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v1.0.0
ICD-10 Guide
ICD-10 CodesD48.5

D48.5

Billable

Neoplasm of uncertain behavior of skin

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

Code Description

ICD-10 D48.5 is a billable code used to indicate a diagnosis of neoplasm of uncertain behavior of skin.

Key Diagnostic Point:

D48.5 refers to neoplasms of uncertain behavior specifically located in the skin. These neoplasms are characterized by their ambiguous histological features, which do not clearly classify them as benign or malignant. Clinically, they may present as atypical lesions that require careful monitoring due to their potential for progression. The uncertainty surrounding these neoplasms necessitates a thorough evaluation, including imaging studies and possibly biopsy, to assess their behavior over time. Surveillance is critical, as some neoplasms may exhibit malignant transformation, while others may remain stable or regress. The management of these lesions often involves a multidisciplinary approach, including dermatologists and oncologists, to determine the best course of action, which may range from observation to surgical intervention. Accurate coding of D48.5 is essential for appropriate patient management and resource allocation in healthcare settings.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Ambiguity in histological classification
  • Need for ongoing surveillance and monitoring
  • Potential for malignant transformation
  • Variability in clinical presentation

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to document follow-up plans
  • Misclassification of neoplasm behavior
  • Lack of histological reports

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed clinical notes including lesion characteristics, biopsy results, and follow-up plans.

Common Clinical Scenarios

Patients presenting with atypical skin lesions requiring biopsy and monitoring.

Billing Considerations

Ensure clear documentation of the rationale for coding D48.5, including any histological findings.

Oncology

Documentation Requirements

Comprehensive treatment plans, including surveillance strategies and any interventions performed.

Common Clinical Scenarios

Management of patients with uncertain behavior neoplasms who may require further oncological evaluation.

Billing Considerations

Document any multidisciplinary discussions regarding treatment options and patient management.

Coding Guidelines

Inclusion Criteria

Use D48.5 When
  • According to the ICD
  • CM coding guidelines, D48
  • 5 should be used when the behavior of the neoplasm is uncertain and cannot be classified as benign or malignant
  • Coders should ensure that the diagnosis is supported by clinical documentation and that any follow
  • up plans are clearly outlined

Exclusion Criteria

Do NOT use D48.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

11100CPT Code

Biopsy of skin, excisional

Clinical Scenario

Used when a biopsy is performed to evaluate a suspicious skin lesion.

Documentation Requirements

Document the reason for the biopsy, findings, and any follow-up plans.

Specialty Considerations

Dermatologists should ensure that the biopsy results are clearly linked to the diagnosis of D48.5.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. D48.5 provides a distinct code that reflects the complexity of these cases, improving data accuracy and patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. D48.5 provides a distinct code that reflects the complexity of these cases, improving data accuracy and patient management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of neoplasms, including those of uncertain behavior. D48.5 provides a distinct code that reflects the complexity of these cases, improving data accuracy and patient management.

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 does D48.5 mean?

D48.5 refers to a neoplasm of uncertain behavior located in the skin, indicating that the lesion's potential for malignancy is not clearly defined.

When should I use D48.5?

Use D48.5 when a skin lesion has been evaluated and found to have uncertain behavior, requiring ongoing monitoring and potential intervention.