M20.02
Boutonnière deformity
Clinical Classification Guidelines
Medical Intelligence & Overview
Boutonnière deformity is a condition affecting the fingers, characterized by a specific deformity that impacts finger movement and function. It typically results from an injury or underlying disease that damages the tendons and joints of the finger, leading to a distinct bend in the middle joint with an adjacent hyperextension at the outer joint. Recognized under ICD-10 code M20.02, this deformity can affect daily activities and requires appropriate management to restore function and reduce discomfort.
Causes & Symptoms
Clinical Causes: Trauma or injury to the finger, such as a laceration or jam injury, which damages the central slip of the extensor tendon Rheumatoid arthritis, leading to chronic inflammation and weakening of the tendons and joints Other inflammatory or degenerative joint diseases Repeated stress or overuse of the finger joints
Key Symptoms: A noticeable bend (flexion) at the middle joint of the finger (PIP joint) Extension or hyperextension of the outer joint (DIP joint) Pain or tenderness around the affected finger joint Swelling and warmth in the affected area Difficulty in straightening or fully extending the finger Limited range of motion and stiffness in the finger joints
Diagnostic & Treatment
Diagnosis Path: Diagnosis primarily involves a physical examination by a healthcare provider, who assesses the finger's shape, range of motion, and tenderness. Imaging tests like X-rays may be used to evaluate joint damage, rule out fractures, or identify arthritis. A detailed medical history including recent injuries or underlying health conditions helps in confirming the diagnosis of boutonnière deformity.
Treatment Protocols: Treatment options focus on restoring finger function, reducing pain, and preventing progression. They may include: - Splinting or buddy taping to keep the finger in a correct position and allow healing - Anti-inflammatory medications to reduce swelling and discomfort - Physical therapy exercises to improve mobility and strengthen the finger - Corticosteroid injections in cases of inflammation - Surgical intervention in severe cases, especially if there is significant joint damage or persistent deformity Recovery times vary depending on the severity of the deformity and the treatment approach, often requiring several weeks of dedicated care.
Clinical Advice & FAQs
Billing Guidance
Is M20.02 a billable ICD-10 code?
Yes, M20.02 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M20.02?
Clinical documentation must specify the nature of Boutonnière deformity and any associated comorbidities for accurate reporting.
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