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ICD-10 Guide
ICD-10 CodesM87.176

M87.176

Billable

Osteonecrosis due to drugs, unspecified foot

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

Code Description

ICD-10 M87.176 is a billable code used to indicate a diagnosis of osteonecrosis due to drugs, unspecified foot.

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 M87.176, the osteonecrosis is specifically attributed to drug use, which can include corticosteroids, bisphosphonates, and other medications that may compromise blood flow to the bones. The unspecified foot designation indicates that the specific location of the osteonecrosis within the foot is not detailed. Clinically, patients may present with pain, swelling, and limited range of motion in the affected foot. Diagnosis typically involves imaging studies such as MRI or X-rays, which can reveal changes in bone density and structure. The condition can lead to significant orthopedic complications, including fractures and joint degeneration, necessitating careful management and potential surgical intervention. Treatment options may include medication adjustments, physical therapy, and in severe cases, surgical procedures like core decompression or joint replacement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of drugs that can cause osteonecrosis
  • Need for precise documentation of drug history
  • Differentiation from other bone conditions
  • Potential for multiple affected sites

Audit Risk Factors

  • Inadequate documentation of drug history
  • Failure to specify the affected site
  • Misclassification of osteonecrosis type
  • Lack of imaging study documentation

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with foot pain and a history of corticosteroid use.

Billing Considerations

Ensure that all relevant imaging studies are documented to support the diagnosis.

Rheumatology

Documentation Requirements

Comprehensive medication history, including dosage and duration of use.

Common Clinical Scenarios

Patients with autoimmune disorders on long-term steroid therapy presenting with joint pain.

Billing Considerations

Document the rationale for medication use and any changes in therapy.

Coding Guidelines

Inclusion Criteria

Use M87.176 When
  • Follow the official ICD
  • CM guidelines for coding osteonecrosis, ensuring that the cause (drug
  • related) is clearly documented
  • Include any relevant external cause codes if applicable

Exclusion Criteria

Do NOT use M87.176 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 joint pain management in osteonecrosis cases.

Documentation Requirements

Document the joint involved and the reason for the procedure.

Specialty Considerations

Orthopedic specialists should ensure proper coding for joint injections.

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 drug-related cases and their outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, improving the ability to track drug-related cases and their outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, improving the ability to track drug-related cases and their outcomes.

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's essential to document any relevant medication history when coding.