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ICD-10 Guide
ICD-10 CodesM87.063

M87.063

Billable

Idiopathic aseptic necrosis of unspecified tibia

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

Code Description

ICD-10 M87.063 is a billable code used to indicate a diagnosis of idiopathic aseptic necrosis of unspecified tibia.

Key Diagnostic Point:

Idiopathic aseptic necrosis of the tibia is a condition characterized by the death of bone tissue due to a lack of blood supply, without an identifiable cause. This condition can lead to significant pain, swelling, and functional impairment of the affected limb. The tibia, being a weight-bearing bone, is particularly susceptible to the effects of osteonecrosis, which can result in joint dysfunction and long-term disability if not addressed promptly. Patients may present with symptoms such as localized pain that worsens with activity, tenderness on palpation, and possible swelling. Diagnosis typically involves imaging studies, including X-rays and MRI, which can reveal changes in bone density and structure indicative of necrosis. Treatment options may vary from conservative management, such as physical therapy and pain relief, to surgical interventions like core decompression or osteotomy, depending on the severity of the condition and the patient's overall health. Understanding the idiopathic nature of this condition is crucial, as it often requires a multidisciplinary approach for effective management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Lack of identifiable cause complicates diagnosis.
  • Differentiation from other bone conditions is necessary.
  • Requires comprehensive documentation of symptoms and imaging.
  • Potential for overlapping codes with osteomyelitis and other necrosis types.

Audit Risk Factors

  • Insufficient documentation of the idiopathic nature.
  • Inadequate imaging reports to support diagnosis.
  • Failure to document conservative treatment attempts.
  • Misclassification with osteomyelitis or other necrosis codes.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with knee or ankle pain, history of trauma, or chronic pain without clear etiology.

Billing Considerations

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

Physical Medicine and Rehabilitation

Documentation Requirements

Functional assessments, treatment goals, and progress notes.

Common Clinical Scenarios

Rehabilitation following surgical intervention for necrosis or conservative management.

Billing Considerations

Document functional limitations and response to therapy to support ongoing treatment.

Coding Guidelines

Inclusion Criteria

Use M87.063 When
  • According to ICD
  • 10 guidelines, M87
  • 063 should be used when the necrosis is confirmed as idiopathic and no other underlying conditions are present
  • It is important to document the absence of trauma or other identifiable causes

Exclusion Criteria

Do NOT use M87.063 When
  • Exclusion criteria include conditions like osteomyelitis, which should be coded separately if present

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 effusion.

Documentation Requirements

Document the indication for the procedure and any imaging 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 idiopathic aseptic necrosis, improving the accuracy of data collection and reimbursement processes. This specificity helps in better tracking of treatment 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 helps in better tracking of treatment outcomes and resource allocation.

Reimbursement & Billing Impact

reimbursement processes. This specificity helps in better tracking of treatment 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 believed to involve a disruption of blood supply to the bone, leading to necrosis without any identifiable underlying condition.