ICD-10 Code G58.7 – Mononeuritis multiplex (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G58.7 – Mononeuritis multiplex
What it is
Mononeuritis multiplex is a pattern of peripheral nerve injury affecting two or more separate nerves in different areas. It usually reflects an underlying disorder rather than a single isolated nerve problem.
Clinical signs
Clinical features vary; refer to documentation. Typical findings include asymmetric sensory loss, weakness, pain, or foot drop affecting multiple individual nerves, often with a patchy distribution.
When to use this code
Use G58.7 when the provider documents mononeuritis multiplex or multiple isolated peripheral neuropathies in a noncontiguous pattern. Code it when the diagnosis is established and the record supports nerve involvement beyond one single nerve. Check documentation if the cause is specified, because the underlying condition may also need coding.
Do not use for
Do not use this code for generalized polyneuropathy, a single mononeuropathy, or radiculopathy. If the chart only says “neuropathy” without a clear pattern, check documentation.
Coding tip
Confirm that more than one distinct peripheral nerve is involved before assigning G58.7.