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ICD-10 Guide
ICD-10 CodesM87.019

M87.019

Billable

Idiopathic aseptic necrosis of unspecified shoulder

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

Code Description

ICD-10 M87.019 is a billable code used to indicate a diagnosis of idiopathic aseptic necrosis of unspecified shoulder.

Key Diagnostic Point:

Idiopathic aseptic necrosis of the shoulder is a condition characterized by the death of bone tissue due to a lack of blood supply, without the presence of infection. This condition can lead to severe pain, limited range of motion, and eventual joint dysfunction. The etiology remains unclear, hence the term 'idiopathic.' Aseptic necrosis can occur in various locations, but when it affects the shoulder, it often involves the humeral head. Risk factors may include corticosteroid use, excessive alcohol consumption, and certain medical conditions such as lupus or sickle cell disease. Diagnosis typically involves imaging studies such as MRI or X-rays, which can reveal changes in bone density and structure. Treatment options may range from conservative management, including physical therapy and pain relief, to surgical interventions like joint replacement in advanced cases. The absence of infection distinguishes this condition from osteomyelitis, which is an infection of the bone, and highlights the importance of accurate diagnosis and coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Lack of clear etiology complicates diagnosis.
  • Differentiation from other bone conditions is necessary.
  • Requires comprehensive documentation of symptoms and imaging results.
  • Potential overlap with other codes related to osteonecrosis.

Audit Risk Factors

  • Insufficient documentation of symptoms and imaging findings.
  • Failure to differentiate from osteomyelitis or other bone diseases.
  • Inconsistent use of the unspecified code when more specific codes are available.
  • Lack of follow-up documentation on treatment outcomes.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed imaging reports, treatment plans, and follow-up notes.

Common Clinical Scenarios

Patients presenting with shoulder pain and limited mobility, particularly after corticosteroid use.

Billing Considerations

Ensure clear documentation of the absence of infection and other potential causes of necrosis.

Rheumatology

Documentation Requirements

Comprehensive patient history, including autoimmune conditions and medication use.

Common Clinical Scenarios

Patients with systemic diseases presenting with joint pain and suspected necrosis.

Billing Considerations

Document any underlying conditions that may contribute to the development of aseptic necrosis.

Coding Guidelines

Inclusion Criteria

Use M87.019 When
  • Follow official ICD
  • 10 coding guidelines, ensuring that the diagnosis is supported by clinical documentation
  • Include imaging results and treatment plans in the patient's medical record

Exclusion Criteria

Do NOT use M87.019 When
  • Exclude conditions that may mimic or complicate the diagnosis

Related ICD-10 Codes

Related CPT Codes

23470CPT Code

Arthroscopy, shoulder, surgical

Clinical Scenario

Used when surgical intervention is required for necrosis.

Documentation Requirements

Pre-operative assessment, imaging results, and surgical notes.

Specialty Considerations

Orthopedic documentation must clearly outline the necessity for surgery.

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 data accuracy and patient care tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like idiopathic aseptic necrosis, improving data accuracy and patient care tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like idiopathic aseptic necrosis, improving data accuracy and patient care tracking.

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 often unknown, but factors such as corticosteroid use, alcohol consumption, and certain medical conditions may contribute.