ICD-10 Code G54.0 – Brachial plexus disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G54.0 – Brachial plexus disorders
What it is
G54.0 identifies disorders affecting the brachial plexus, the nerve network that supplies the shoulder, arm, and hand. Use it when documentation states brachial plexus involvement without a more specific diagnosis.
Clinical signs
Typical findings include arm pain, weakness, numbness, tingling, or reduced reflexes in a brachial plexus distribution. Clinical features vary; refer to documentation.
When to use this code
Use G54.0 when the provider documents brachial plexopathy, plexus injury, or another brachial plexus disorder and no more specific code is available. It may apply after trauma, compression, inflammation, or other nerve pathology. Check documentation for laterality and cause if reported.
Do not use for
Do not use this code for isolated cervical radiculopathy, peripheral neuropathy, or shoulder joint disorders. If the record names a different nerve lesion or a more specific etiology, code that instead.
Coding tip
Query for laterality, cause, and whether the condition is traumatic or nontraumatic before assigning G54.0.