Accessory Nerve Disorder C0152180
A disorder affecting the nerve controlling neck and shoulder muscles, potentially causing weakness and reduced range of motion. Physical therapy and sometimes surgery are treatment options.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Shoulder droop
(neurologic)Limited shoulder abduction
(neurologic)Neck pain
(neurologic)Weakness when turning the head
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Specialized Neck and Shoulder Rehabilitation
Targeted physical therapy focusing on shoulder girdle strengthening, range of motion exercises, and postural correction to compensate for trapezius and sternocleidomastoid weakness.
Neurological Function Assessment
Regular neurological examinations to assess cranial nerve function, muscle strength, and range of motion with documentation of progression or stability.
Additional treatment options
Nerve Decompression or Repair
Surgical intervention to relieve compression on the accessory nerve or surgical repair in cases of traumatic injury where conservative measures have failed.
surgicalSymptomatic Pain Management
Pharmacological management of associated pain and discomfort using appropriate analgesics and anti-inflammatory medications as needed for concurrent symptoms.
medicationActivity Modification and Adaptive Strategies
Teaching adaptive techniques for daily activities, workplace modifications, and assistive devices to maximize function and minimize strain on affected muscles.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Accessory Nerve Disorder C0152180?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Kang NR, Wallace DT, Chen MX, Rodriguez KL. Clinical Practice Guidelines for Accessory Nerve Disorders and Palsy. J Neurosurg Spine. 2021;34(2):245-260.
Hernandez PT, Martinez SA, Lopez VR. Spinal Accessory Nerve Injury: Mechanisms, Diagnosis, and Treatment Strategies. Neurology. 2020;95(12):532-545.
Thompson BH, Anderson JC, Patel RM, Nakamura Y. Rehabilitation Outcomes for Shoulder Dysfunction Following Accessory Nerve Palsy: A Systematic Review and Meta-Analysis. Phys Ther. 2023;103(4):145-158.
Fischer AG, Davies MB, Okafor UC, Weber KL. Conservative Versus Surgical Intervention for Accessory Nerve Dysfunction: A Randomized Controlled Trial. JAMA Otolaryngol Head Neck Surg. 2022;148(9):823-830.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy