ICD-10-CM Billable Code

M65.1

Other infective (teno)synovitis

Clinical Classification Guidelines

Medical Intelligence & Overview

Other infective (teno)synovitis refers to an infection that affects the synovial membrane of a tendon sheath, leading to inflammation. This condition is a subset of synovitis, which involves swelling and irritation of the synovial tissue. When caused by an infectious agent, it can result in significant pain, swelling, and impaired movement of the affected limb. Recognizing and treating infective tenosynovitis promptly is essential to prevent complications such as tissue damage or spread of infection.

Causes & Symptoms

Clinical Causes: Bacterial infections, such as Staphylococcus aureus or Streptococcus species Fungal infections in immunocompromised individuals Spread from adjacent infected tissues or skin lesions Direct trauma introducing infectious agents into the tendon sheath Hematogenous dissemination of bacteria through the bloodstream

Key Symptoms: Pain along the affected tendon or wrist Swelling and warmth over the affected area Tenderness to touch Limited range of motion or difficulty moving the affected finger, wrist, or ankle Redness and inflammation of the overlying skin Possible fever or signs of systemic infection in severe cases

Diagnostic & Treatment

Diagnosis Path: Physical assessment to evaluate swelling, tenderness, and range of motion Imaging studies such as ultrasound or MRI to visualize inflammation or fluid accumulation in the tendon sheath Laboratory tests including blood work to identify signs of infection Aspiration and analysis of synovial or tendon sheath fluid to identify infectious organisms

Treatment Protocols: Antibiotic therapy tailored to the specific infective agent, often administered intravenously or orally Immobilization of the affected limb to minimize movement and support healing Drainage of any abscess or excess fluid accumulated within the tendon sheath Surgical intervention in cases where infection is severe or does not respond to antibiotics Supportive care, including pain management and elevation of the affected limb

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 M65.1 a billable ICD-10 code?
Yes, M65.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report M65.1?
Clinical documentation must specify the nature of Other infective (teno)synovitis and any associated comorbidities for accurate reporting.

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