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ICD-10 Guide
ICD-10 CodesM87.135

M87.135

Billable

Osteonecrosis due to drugs of left ulna

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

Code Description

ICD-10 M87.135 is a billable code used to indicate a diagnosis of osteonecrosis due to drugs of left ulna.

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 M87.135, the osteonecrosis is specifically attributed to the use of certain medications, which can disrupt blood flow to the bone. The left ulna, one of the two long bones in the forearm, is affected in this diagnosis. Commonly implicated drugs include corticosteroids and bisphosphonates, which can lead to bone weakening and increased susceptibility to fractures. Patients may present with pain, swelling, and limited range of motion in the affected area. Diagnosis typically involves imaging studies such as MRI or X-rays, which can reveal changes in bone density and structure. Treatment options may include medication adjustments, physical therapy, or surgical interventions such as core decompression or joint replacement, depending on the severity of the condition. Understanding the underlying causes and appropriate management strategies is crucial for optimizing patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Specificity of the drug causing osteonecrosis must be documented.
  • Differentiation from other types of osteonecrosis is necessary.
  • Requires knowledge of drug interactions and side effects.
  • Documentation must clearly indicate the affected bone and side.

Audit Risk Factors

  • Insufficient documentation of drug history.
  • Lack of imaging studies to support diagnosis.
  • Inadequate differentiation from osteomyelitis.
  • Failure to document the severity of the condition.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed history of medication use, imaging results, and physical examination findings.

Common Clinical Scenarios

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

Billing Considerations

Ensure that the documentation specifies the affected bone and any prior treatments.

Rheumatology

Documentation Requirements

Comprehensive medication history and assessment of underlying conditions.

Common Clinical Scenarios

Patients with autoimmune disorders on long-term corticosteroid therapy.

Billing Considerations

Document any comorbidities that may contribute to osteonecrosis.

Coding Guidelines

Inclusion Criteria

Use M87.135 When
  • According to ICD
  • 10 guidelines, M87
  • 135 should be used when osteonecrosis is specifically due to drug use, and it is essential to document the specific drug involved
  • related causes

Exclusion Criteria

Do NOT use M87.135 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 joint involved and the reason for the procedure.

Specialty Considerations

Orthopedic specialists should ensure proper coding based on the joint treated.

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 aids in better tracking of outcomes and treatment efficacy.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, including drug-induced cases. This specificity aids in better tracking of outcomes and treatment efficacy.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of osteonecrosis, including drug-induced cases. This specificity aids in better tracking of outcomes and treatment efficacy.

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 types of drugs can cause osteonecrosis?

Common drugs associated with osteonecrosis include corticosteroids, bisphosphonates, and certain chemotherapy agents. It's important to document the specific medication involved in the patient's history.