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ICD-10 Guide
ICD-10 CodesM87.177

M87.177

Billable

Osteonecrosis due to drugs, right toe(s)

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

Code Description

ICD-10 M87.177 is a billable code used to indicate a diagnosis of osteonecrosis due to drugs, right toe(s).

Key Diagnostic Point:

Osteonecrosis due to drugs, specifically affecting the right toe(s), is a condition characterized by the death of bone tissue due to a lack of blood supply, which can be precipitated by certain medications. This condition often arises from the use of corticosteroids, bisphosphonates, or other pharmacological agents that can impair blood flow to the bone. Patients may present with localized pain, swelling, and limited mobility in the affected toe(s). The diagnosis is typically confirmed through imaging studies such as MRI or X-rays, which can reveal changes in bone density and structure. Osteonecrosis can lead to severe complications, including joint dysfunction and the potential need for surgical intervention, such as joint replacement or debridement. The right toe(s) being specifically affected indicates a localized process, which may require targeted treatment strategies. Understanding the underlying causes, including the specific drugs involved, is crucial for effective management and prevention of further complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires knowledge of specific drug-related osteonecrosis.
  • Differentiation from other types of osteonecrosis.
  • Documentation of drug history and its correlation with symptoms.
  • Need for precise localization (right toe(s)).

Audit Risk Factors

  • Inadequate documentation of drug history.
  • Failure to specify the affected toe(s).
  • Misclassification with other types of osteonecrosis.
  • Lack of imaging studies to support diagnosis.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed history of medication use, imaging results, and clinical findings.

Common Clinical Scenarios

Patients presenting with pain in the toe(s) after starting corticosteroids.

Billing Considerations

Ensure clear documentation of the relationship between drug use and osteonecrosis.

Rheumatology

Documentation Requirements

Comprehensive medication history, including duration and dosage of drugs.

Common Clinical Scenarios

Patients with autoimmune conditions on long-term steroid therapy developing toe pain.

Billing Considerations

Consideration of underlying rheumatologic conditions that may contribute to osteonecrosis.

Coding Guidelines

Inclusion Criteria

Use M87.177 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the drug causing osteonecrosis and the specific anatomical site
  • Include any relevant imaging studies and clinical findings

Exclusion Criteria

Do NOT use M87.177 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 osteonecrosis cases.

Documentation Requirements

Document indication for procedure and response to treatment.

Specialty Considerations

Orthopedic specialists often perform this procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, improving the ability to track and manage this condition effectively. M87.177 provides a clear indication of the drug-related nature of the osteonecrosis, which is essential for treatment planning and research.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, improving the ability to track and manage this condition effectively. M87.177 provides a clear indication of the drug-related nature of the osteonecrosis, which is essential for treatment planning and research.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, improving the ability to track and manage this condition effectively. M87.177 provides a clear indication of the drug-related nature of the osteonecrosis, which is essential for treatment planning and research.

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 medications are commonly associated with osteonecrosis?

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