S04.7
Injury of accessory nerve
Clinical Classification Guidelines
Inclusion Terms
- Injury of 11th cranial nerve
Medical Intelligence & Overview
Injury of the accessory nerve, also known as the 11th cranial nerve, involves damage to a nerve that plays a key role in controlling certain neck and shoulder muscles. This nerve is responsible for muscle movements that help with shoulder shrugging and turning the head. An injury to this nerve can result from trauma, surgical procedures, or other medical conditions, leading to weakness or paralysis in specific muscles. Recognizing the causes, symptoms, diagnosis, and treatment options is important for managing this condition effectively.
Causes & Symptoms
Clinical Causes: Trauma or blunt injury to the neck or shoulder area Surgical procedures involving the neck, chest, or shoulders, such as lymph node removal or artery repair Neck tumors or malignancies pressing on or invading the nerve Inflammatory conditions or infections affecting the nerve Radiation therapy in the neck area Compression due to hematoma or swelling
Key Symptoms: Weakness in the sternocleidomastoid and trapezius muscles Difficulty turning the head to the opposite side Inability to elevate the shoulder or shrug effectively Asymmetry in shoulder height or contour Neck or shoulder pain Limited range of neck and shoulder movement
Diagnostic & Treatment
Diagnosis Path: To diagnose a nerve injury, healthcare providers typically perform a thorough physical examination focusing on muscle strength and movement. Imaging tests such as MRI or CT scans can help visualize any structural damage, tumors, or other abnormalities affecting the nerve. Electromyography (EMG) may be used to assess nerve function and pinpoint the location and extent of nerve damage. A detailed medical history, including recent surgeries or trauma, aids in diagnosis.
Treatment Protocols: Treatment approaches aim to restore nerve function and manage symptoms. Options may include: - Rest and activity modification to prevent further injury - Physical therapy to strengthen muscles and improve movement - Pain management with medications if necessary - Surgical intervention in cases of nerve compression or extensive damage - Monitoring and supportive care during nerve healing Recovery times can vary depending on the severity of the injury, with some patients experiencing significant improvement over months, while others may have persistent deficits.
Clinical Advice & FAQs
Billing Guidance
Is S04.7 a billable ICD-10 code?
Yes, S04.7 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report S04.7?
Clinical documentation must specify the nature of Injury of accessory nerve and any associated comorbidities for accurate reporting.
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