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ICD-10 Guide
ICD-10 CodesM87.050

M87.050

Billable

Idiopathic aseptic necrosis of pelvis

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

Code Description

ICD-10 M87.050 is a billable code used to indicate a diagnosis of idiopathic aseptic necrosis of pelvis.

Key Diagnostic Point:

Idiopathic aseptic necrosis of the pelvis is a condition characterized by the death of bone tissue due to a lack of blood supply, without the presence of infection. This condition often affects the femoral head but can also involve other areas of the pelvis. The etiology remains unclear, hence the term 'idiopathic.' Patients may present with hip pain, limited range of motion, and functional impairment. The necrosis can lead to structural collapse of the bone, resulting in significant orthopedic complications, including osteoarthritis and joint dysfunction. 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, such as physical therapy and pain management, or surgical interventions like core decompression or total hip arthroplasty in advanced cases. Early recognition and intervention are crucial to prevent further complications and preserve joint function.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for imaging studies to confirm diagnosis
  • Differentiation from other types of osteonecrosis
  • Potential for co-morbid conditions affecting treatment

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify the idiopathic nature of the condition
  • Misclassification with other types of osteonecrosis
  • Lack of imaging results in the medical record

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes, imaging results, and treatment plans must be documented.

Common Clinical Scenarios

Patients presenting with hip pain, limited mobility, or previous trauma.

Billing Considerations

Ensure clear documentation of the idiopathic nature and any differential diagnoses considered.

Radiology

Documentation Requirements

Imaging reports must clearly indicate findings consistent with aseptic necrosis.

Common Clinical Scenarios

Imaging studies requested for patients with unexplained hip pain.

Billing Considerations

Radiologists should provide detailed descriptions of bone changes to support the diagnosis.

Coding Guidelines

Inclusion Criteria

Use M87.050 When
  • According to ICD
  • 10 guidelines, M87
  • 050 should be used when the necrosis is confirmed to be idiopathic and not due to trauma, infection, or other underlying conditions
  • Documentation must support the diagnosis and the absence of secondary causes

Exclusion Criteria

Do NOT use M87.050 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration of a major joint or bursa

Clinical Scenario

Used for joint pain management in patients with necrosis.

Documentation Requirements

Document the indication for aspiration and findings.

Specialty Considerations

Orthopedic specialists should ensure that the procedure is justified based on clinical findings.

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 M87.050, improving the accuracy of data collection and reimbursement processes. It provides a clearer understanding of the condition's prevalence and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M87.050, improving the accuracy of data collection and reimbursement processes. It provides a clearer understanding of the condition's prevalence and treatment outcomes.

Reimbursement & Billing Impact

reimbursement processes. It provides a clearer understanding of the condition's prevalence and treatment 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 are the common symptoms of idiopathic aseptic necrosis of the pelvis?

Common symptoms include hip pain, limited range of motion, and difficulty bearing weight on the affected side.