ICD-10 Code G55 – Nerve root and plexus compressions in diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G55 – Nerve root and plexus compressions in diseases classified elsewhere
What it is
G55 identifies compression of a nerve root or plexus when the underlying cause is a disease classified elsewhere. Use this code when the neurologic compression is secondary to another documented condition, not a primary nerve disorder.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include pain, numbness, weakness, or sensory changes in a nerve root or plexus distribution, with the source condition documented separately.
When to use this code
Use G55 when the record states nerve root or plexus compression caused by another disease, such as a systemic or structural condition documented elsewhere in the chart. You should code the underlying disease first when instructed by the record and coding guidelines. Confirm that the provider links the compression to that cause.
Do not use for
Do not use G55 for primary radiculopathy, plexopathy, or nerve compression without an identified underlying disease. Check documentation if the cause is unclear or if the condition is better described by a code for the primary disorder.
Coding tip
Verify the causal condition in the note and code it in addition to G55 when appropriate.