ICD-10-CM Billable Code

S56.118

Strain of flexor muscle, fascia and tendon of left little finger at forearm level

Clinical Classification Guidelines

Medical Intelligence & Overview

A strain of the flexor muscles, fascia, and tendons in the left little finger involves overstretching or minor tearing of these tissues at the forearm level. This injury usually results from repetitive movements, overuse, or acute trauma such as sudden impact or force. The condition affects the ability to bend or grasp objects with ease and may cause discomfort or pain in the affected area. Recognizing the symptoms and understanding the causes help in managing the condition effectively.

Causes & Symptoms

Clinical Causes: Repetitive gripping, squeezing, or pinching movements involving the little finger Sudden trauma or impact, such as jamming the finger during a fall Overuse during activities like sports, manual labor, or musical instrument playing Poor technique or ergonomics during physical activities or work-related tasks Extended or vigorous use of the finger without adequate rest

Key Symptoms: Pain or tenderness along the inside of the finger or at the forearm Swelling or inflammation around the affected tendons Limited range of motion, making it difficult to bend or straighten the finger Weakness in the grip or difficulty grasping objects A sensation of stiffness or discomfort during finger movement Possible bruising if trauma was recent

Diagnostic & Treatment

Diagnosis Path: Diagnosis typically involves a medical history review and physical examination focusing on the finger and forearm. The healthcare provider may test the strength and flexibility of the flexor tendons and evaluate for swelling or tenderness. In some cases, imaging techniques such as ultrasound or MRI might be recommended to exclude more severe injuries like tears or fractures, and to assess the extent of the strain.

Treatment Protocols: Management of a flexor muscle, fascia, and tendon strain generally includes the following strategies: - Resting the affected hand and avoiding activities that worsen symptoms - Applying ice packs to reduce swelling and pain - Using analgesic or anti-inflammatory medications as advised by a healthcare professional - Elevating the hand to minimize swelling - Gentle stretching and strengthening exercises as part of a rehabilitation program after the initial pain subsides - Using braces, splints, or supports to immobilize the finger during healing - Physical therapy may be recommended to restore strength, flexibility, and function In more severe cases, such as partial tears, a healthcare provider might consider corticosteroid injections or, rarely, surgical repair to fully restore tendon integrity. It’s important to follow medical guidance to promote effective healing and prevent recurrence.

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 S56.118 a billable ICD-10 code?
Yes, S56.118 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report S56.118?
Clinical documentation must specify the nature of Strain of flexor muscle, fascia and tendon of left little finger at forearm level and any associated comorbidities for accurate reporting.

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