ICD-10 Code G54.8 – Other nerve root and plexus disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G54.8 – Other nerve root and plexus disorders
What it is
This code identifies disorders affecting a nerve root or nerve plexus that do not fit a more specific ICD-10 category. Use it when documentation names an unspecified or other plexus/root disorder.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe pain, sensory changes, weakness, or impaired function in a distribution consistent with a nerve root or plexus.
When to use this code
Use G54.8 when the provider documents an “other” nerve root or plexus disorder and does not identify a more specific diagnosis. It may apply when the affected root or plexus is named, but the condition is not listed elsewhere in ICD-10-CM. Check documentation for laterality, cause, and specificity before coding.
Do not use for
Do not use this code for clearly specified nerve root or plexus disorders with a more exact ICD-10 code. Do not use it when the documentation supports radiculopathy, neuropathy, or another defined neurologic condition instead.
Coding tip
Look for the exact provider wording; if a more specific root, plexus, or cause is documented, code that diagnosis instead of G54.8.