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ICD-10 Guide
ICD-10 CodesM87.076

M87.076

Billable

Idiopathic aseptic necrosis of unspecified foot

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

Code Description

ICD-10 M87.076 is a billable code used to indicate a diagnosis of idiopathic aseptic necrosis of unspecified foot.

Key Diagnostic Point:

Idiopathic aseptic necrosis of the foot 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 significant pain, limited mobility, and potential deformity of the foot. The etiology is often unknown, hence the term 'idiopathic.' Aseptic necrosis can occur in various bones of the foot, including the talus, navicular, and metatarsals. Patients may present with symptoms such as localized pain, swelling, and tenderness, particularly during weight-bearing activities. 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 measures like rest, immobilization, and physical therapy, or surgical interventions in more severe cases. Understanding the nuances of this condition is crucial for accurate coding and appropriate management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for imaging studies for accurate diagnosis
  • Differentiation from other types of bone necrosis and infections
  • Potential for co-morbid conditions affecting treatment

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify the affected bone in the foot
  • Misclassification with osteomyelitis or other infections
  • 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 foot pain, history of trauma, or chronic conditions affecting blood supply.

Billing Considerations

Ensure clear documentation of the idiopathic nature and exclusion of other causes of necrosis.

Physical Medicine and Rehabilitation

Documentation Requirements

Functional assessments and rehabilitation plans should be documented.

Common Clinical Scenarios

Patients requiring rehabilitation post-surgery or conservative management for foot necrosis.

Billing Considerations

Document the impact on mobility and functional status to support therapy needs.

Coding Guidelines

Inclusion Criteria

Use M87.076 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's idiopathic nature

Exclusion Criteria

Do NOT use M87.076 When
  • Exclude codes for osteomyelitis or other infections unless they are present

Related ICD-10 Codes

Related CPT Codes

20610CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used when joint aspiration is performed to relieve pain associated with necrosis.

Documentation Requirements

Document the indication for aspiration and any findings.

Specialty Considerations

Orthopedic specialists should ensure clear documentation of the procedure and its necessity.

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 M87.076, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like M87.076, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like M87.076, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management 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 often unknown, but it can be associated with factors such as trauma, corticosteroid use, and certain medical conditions that affect blood flow.