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ICD-10 Guide
ICD-10 CodesM87.074

M87.074

Billable

Idiopathic aseptic necrosis of right foot

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

Code Description

ICD-10 M87.074 is a billable code used to indicate a diagnosis of idiopathic aseptic necrosis of right foot.

Key Diagnostic Point:

Idiopathic aseptic necrosis of the right foot refers to the death of bone tissue due to a lack of blood supply, specifically affecting the bones in the foot without any identifiable cause. This condition is characterized by the gradual degeneration of bone, leading to pain, swelling, and potential deformity. The right foot is specifically affected, which may involve the talus, calcaneus, or metatarsals. The etiology remains unknown, hence the term 'idiopathic.' Patients may present with symptoms such as localized pain that worsens with weight-bearing activities, tenderness upon palpation, and limited range of motion. Diagnosis typically involves imaging studies such as X-rays or MRI to assess bone integrity and identify areas of necrosis. Treatment options may include conservative management with rest, immobilization, and pain relief, or surgical interventions in more severe cases. Understanding this condition is crucial for proper coding and management, as it can lead to significant orthopedic complications if not addressed appropriately.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Lack of identifiable cause complicates documentation.
  • Differentiation from other types of necrosis or osteomyelitis.
  • Potential for overlapping symptoms with other foot conditions.
  • Need for precise imaging documentation to support diagnosis.

Audit Risk Factors

  • Insufficient documentation of symptoms and clinical findings.
  • Inadequate imaging reports to support diagnosis.
  • Failure to document treatment plans and patient responses.
  • Misclassification with other necrosis or infection codes.

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed clinical notes, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with foot pain, history of trauma, or chronic conditions affecting blood supply.

Billing Considerations

Ensure clear differentiation from osteomyelitis and other bone pathologies.

Radiology

Documentation Requirements

Comprehensive imaging reports detailing findings related to necrosis.

Common Clinical Scenarios

Imaging studies requested for unexplained foot pain or suspected necrosis.

Billing Considerations

Accurate interpretation of imaging is crucial for supporting the diagnosis.

Coding Guidelines

Inclusion Criteria

Use M87.074 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's idiopathic nature
  • Include any relevant imaging studies and treatment plans

Exclusion Criteria

Do NOT use M87.074 When
  • Exclude conditions that may mimic or overlap with aseptic necrosis

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 any imaging findings.

Specialty Considerations

Orthopedic specialists should ensure clear documentation of the patient's condition.

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 patient records and facilitating better treatment planning.

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 patient records and facilitating better treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like idiopathic aseptic necrosis, improving the accuracy of patient records and facilitating better treatment planning.

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 remains unknown, but it is associated with factors such as trauma, corticosteroid use, and certain medical conditions that affect blood flow.