ICD-10-CM Billable Code

M87.373

Other secondary osteonecrosis, unspecified ankle

Clinical Classification Guidelines

Medical Intelligence & Overview

Osteonecrosis, also known as avascular necrosis, is a condition that occurs when there is a loss of blood supply to the bone tissue. Without adequate blood flow, the bone begins to die, leading to pain, joint dysfunction, and potentially joint collapse. The specific type covered here is 'Other secondary osteonecrosis, unspecified ankle,' which indicates that this condition affects the ankle joint and is secondary, meaning it results from other underlying health issues or factors.

Causes & Symptoms

Clinical Causes: Trauma or injury to the ankle, such as fractures or dislocations Chronic corticosteroid use Excessive alcohol consumption Certain medical conditions like sickle cell disease or lupus Radiation therapy near the ankle Blood disorders that impair blood flow Decompression sickness Use of certain medications or drugs that affect blood supply Prolonged immobilization or reduced mobility

Key Symptoms: Persistent ankle pain that worsens with activity Swelling and tenderness around the ankle joint Reduced range of motion or stiffness Weakness or instability in the ankle Potential the development of a limp In advanced cases, joint collapse and deformity

Diagnostic & Treatment

Diagnosis Path: Diagnosis involves a combination of medical history, physical examination, and imaging tests. Typically, this includes:

Treatment Protocols: Treatment aims to relieve symptoms, preserve joint function, and prevent further bone damage. Approaches can include:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is M87.373 a billable ICD-10 code?
Yes, M87.373 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report M87.373?
Clinical documentation must specify the nature of Other secondary osteonecrosis, unspecified ankle and any associated comorbidities for accurate reporting.

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