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ICD-10 Guide
ICD-10 CodesM87.175

M87.175

Billable

Osteonecrosis due to drugs, left foot

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

Code Description

ICD-10 M87.175 is a billable code used to indicate a diagnosis of osteonecrosis due to drugs, left 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 M87.175, the osteonecrosis is specifically attributed to drug use, which can include corticosteroids, bisphosphonates, and other medications that may compromise blood flow to the bone. The left foot is affected, which can lead to significant pain, limited mobility, and potential complications such as fractures or joint collapse. Patients may present with symptoms such as localized pain, swelling, and difficulty bearing weight on the affected foot. Diagnosis typically involves imaging studies such as MRI or X-rays to assess the extent of bone damage. Treatment options may include conservative management with pain relief, physical therapy, or surgical interventions such as core decompression or joint replacement, depending on the severity of the condition. Understanding the underlying causes, including the specific drugs involved, is crucial for effective management and coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Identification of the specific drug causing osteonecrosis.
  • Differentiation from other types of osteonecrosis not related to drugs.
  • Need for detailed documentation of patient history and medication use.
  • Potential for overlapping diagnoses with osteomyelitis or other bone conditions.

Audit Risk Factors

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

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed patient history, medication list, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with chronic pain in the foot, history of corticosteroid use, and imaging showing bone changes.

Billing Considerations

Orthopedic surgeons must ensure that the documentation clearly links the osteonecrosis to drug use to support the coding.

Rheumatology

Documentation Requirements

Comprehensive review of the patient's medication history, including any immunosuppressive drugs.

Common Clinical Scenarios

Patients with autoimmune diseases on long-term corticosteroids presenting with foot pain.

Billing Considerations

Rheumatologists should document the rationale for medication use and any potential side effects leading to osteonecrosis.

Coding Guidelines

Inclusion Criteria

Use M87.175 When
  • According to ICD
  • 10 guidelines, M87
  • 175 should be used when osteonecrosis is specifically due to drug use
  • Coders must ensure that the documentation supports the diagnosis and that the left foot is clearly identified as the affected site
  • related causes

Exclusion Criteria

Do NOT use M87.175 When
  • Exclusion criteria include osteonecrosis due to trauma or other non

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 the patient's response.

Specialty Considerations

Orthopedic specialists should note the specific joint involved.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like osteonecrosis due to drugs, improving the accuracy of patient records and facilitating better treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like osteonecrosis due to drugs, improving the accuracy of patient records and facilitating better treatment planning.

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 medications are commonly associated with M87.175?

Common medications include corticosteroids, bisphosphonates, and certain chemotherapy agents. It's important to document any relevant medication history.