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ICD-10 Guide
ICD-10 CodesM87.031

M87.031

Billable

Idiopathic aseptic necrosis of right radius

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

Code Description

ICD-10 M87.031 is a billable code used to indicate a diagnosis of idiopathic aseptic necrosis of right radius.

Key Diagnostic Point:

Idiopathic aseptic necrosis of the right radius is a condition characterized by the death of bone tissue due to a lack of blood supply, specifically affecting the radius bone in the forearm. This condition is termed 'idiopathic' because the exact cause remains unknown, although it is often associated with risk factors such as corticosteroid use, alcohol consumption, and certain medical conditions like sickle cell disease. Patients may present with pain, swelling, and limited range of motion in the affected arm. Diagnosis typically involves imaging studies such as X-rays or MRI, which can reveal changes in bone density and structure. Treatment options may include conservative management with pain relief and physical therapy, or surgical interventions such as core decompression or bone grafting in more severe cases. The prognosis varies depending on the extent of necrosis and the timeliness of intervention.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • The idiopathic nature of the condition complicates the identification of underlying causes.
  • Differentiating from other forms of osteonecrosis or bone infections requires careful clinical evaluation.
  • Documentation must clearly specify the affected site (right radius) to avoid coding errors.
  • Potential overlap with other codes related to osteomyelitis or traumatic injuries can lead to confusion.

Audit Risk Factors

  • Inadequate documentation of the idiopathic nature of the condition.
  • Failure to specify laterality (right vs. left) in the medical record.
  • Misclassification as osteomyelitis without appropriate evidence.
  • Lack of imaging results to support the diagnosis.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes including patient history, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with forearm pain, limited mobility, or after trauma.

Billing Considerations

Ensure that all imaging studies are documented and correlate with clinical findings.

Physical Medicine and Rehabilitation

Documentation Requirements

Comprehensive assessment of functional limitations and rehabilitation goals.

Common Clinical Scenarios

Patients requiring rehabilitation post-surgery or conservative management.

Billing Considerations

Document progress and response to therapy to support ongoing treatment.

Coding Guidelines

Inclusion Criteria

Use M87.031 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the diagnosis is supported by clinical documentation
  • The code M87
  • 031 should be used when the condition is confirmed as idiopathic and specifically affects the right radius
  • existing conditions

Exclusion Criteria

Do NOT use M87.031 When
  • Exclude codes for traumatic injuries or infections unless they are documented as co

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 necrosis-related joint issues.

Documentation Requirements

Document the indication for the procedure and the joint involved.

Specialty Considerations

Orthopedic specialists should ensure that the procedure correlates with the diagnosis.

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 idiopathic aseptic necrosis, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of patient outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like idiopathic aseptic necrosis, improving the accuracy of data collection and reimbursement processes. This specificity aids in better tracking of patient outcomes and resource allocation.

Reimbursement & Billing Impact

reimbursement processes. This specificity aids in better tracking of patient outcomes and resource allocation.

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 is the primary cause of idiopathic aseptic necrosis?

The primary cause is unknown, but it is often associated with risk factors such as corticosteroid use, alcohol consumption, and certain medical conditions.