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 CodesM87.146

M87.146

Billable

Osteonecrosis due to drugs, unspecified finger(s)

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/17/2025

Code Description

ICD-10 M87.146 is a billable code used to indicate a diagnosis of osteonecrosis due to drugs, unspecified finger(s).

Key Diagnostic Point:

Osteonecrosis, also known as avascular necrosis, is a condition characterized by the death of bone tissue due to a lack of blood supply. In the case of M87.146, the osteonecrosis is specifically attributed to drug use, which can include corticosteroids, bisphosphonates, and other medications known to affect bone health. The condition can lead to severe pain, limited mobility, and potential joint collapse if not addressed promptly. The unspecified nature of the finger(s) indicates that the exact digit affected is not specified, which can complicate treatment and management strategies. Osteonecrosis can result in significant orthopedic complications, including chronic pain and functional impairment, necessitating careful monitoring and potentially surgical intervention. The diagnosis requires a thorough clinical evaluation, including imaging studies such as MRI or X-rays, to assess the extent of bone damage and guide treatment options.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Unspecified location complicates treatment planning.
  • Requires knowledge of drug-related osteonecrosis.
  • Differentiation from other bone conditions is necessary.
  • Potential for multiple affected sites increases coding complexity.

Audit Risk Factors

  • Inadequate documentation of drug history.
  • Failure to specify the affected finger(s).
  • Lack of imaging studies to support diagnosis.
  • Inconsistent clinical notes regarding treatment plans.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed documentation of the patient's drug history, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with pain in the fingers after long-term corticosteroid use.

Billing Considerations

Orthopedic specialists should ensure that all relevant imaging and clinical findings are documented to support the diagnosis.

Rheumatology

Documentation Requirements

Comprehensive records of autoimmune conditions and medications prescribed.

Common Clinical Scenarios

Patients with rheumatoid arthritis experiencing finger pain after treatment with disease-modifying antirheumatic drugs (DMARDs).

Billing Considerations

Rheumatologists must document the relationship between drug therapy and osteonecrosis clearly.

Coding Guidelines

Inclusion Criteria

Use M87.146 When
  • According to ICD
  • 10 coding guidelines, M87
  • 146 should be used when osteonecrosis is confirmed to be drug
  • induced and the specific finger(s) affected are not documented
  • Coders should ensure that all relevant clinical information is available to support the diagnosis

Exclusion Criteria

Do NOT use M87.146 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used for pain management in patients with osteonecrosis.

Documentation Requirements

Document the indication for the procedure and any imaging findings.

Specialty Considerations

Orthopedic specialists should ensure that the procedure is justified based on clinical findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, including drug-induced cases. This specificity helps in better tracking of the condition and its causes, improving patient care and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, including drug-induced cases. This specificity helps in better tracking of the condition and its causes, improving patient care and treatment outcomes.

Reimbursement & Billing Impact

reimbursement.

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 are the common drugs associated with osteonecrosis?

Common drugs include corticosteroids, bisphosphonates, and certain chemotherapy agents. It is crucial to document any relevant medication history when coding.