ICD-10-CM Billable Code

S46.21

Strain of muscle, fascia and tendon of other parts of biceps

Clinical Classification Guidelines

Medical Intelligence & Overview

The ICD-10 code S46.21 refers to a strain involving the muscle, fascia, and tendon of parts of the biceps that are not specified elsewhere. This type of injury typically results from overstretching or tearing of these tissues in the upper arm, leading to pain, swelling, and limited movement. The biceps muscle plays a crucial role in arm movements such as lifting and pulling, making injuries here significant for daily activities.

Causes & Symptoms

Clinical Causes: Sudden excessive force or overexertion during lifting or pulling activities Sports injuries, especially during activities involving throwing, lifting, or rapid arm movements Accidental falls or trauma impacting the upper arm Repetitive strain from overuse, leading to microtears in the muscle or tendons Poor technique during physical activities or weight training Age-related degeneration weakening the tissues

Key Symptoms: Sudden onset of arm pain localized to the biceps region Swelling or bruising in the upper arm Tenderness upon touch or movement Limited range of motion in the affected arm Weakness in arm strength, especially during lifting or flexing A popping or tearing sensation at the time of injury in some cases

Diagnostic & Treatment

Diagnosis Path: Diagnosis generally involves a physical examination where a healthcare provider assesses pain, swelling, tenderness, and the range of motion. Imaging tests like ultrasound or MRI can be used to confirm the diagnosis, determine the extent of the injury, and rule out other issues such as complete tears or rupture.

Treatment Protocols: Treatment focuses on minimizing pain, reducing swelling, and restoring function. Common approaches may 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 S46.21 a billable ICD-10 code?
Yes, S46.21 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report S46.21?
Clinical documentation must specify the nature of Strain of muscle, fascia and tendon of other parts of biceps and any associated comorbidities for accurate reporting.

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