M
IMEPro
G58.9 Neurological
Updated March 2026

Mononeuropathy, unspecified

ICD-10 Code: G58.9 · Body Part: Wrist/Hand

QME Evaluation Process

Neurological examination, EMG/NCS for diagnosis and localization. Impairment per specific nerve involved using peripheral nerve tables.

Typical Impairment Rating

5-25% depending on nerve and severity

AMA Guides Edition

5th Edition

Common Treatments

+ Treatment per specific nerve involved
+ Physical therapy
+ Surgical decompression

Related Conditions

Body Part Guide

Wrist/Hand Evaluation Guide

Impairment rating methods, common conditions, and QME evaluation protocols

View Guide →

QME Specialties for Mononeuropathy, unspecified

Find a QME Specialist

Browse QME-certified physicians who evaluate mononeuropathy, unspecified and related wrist/hand conditions in California.

Browse Physical Medicine & Rehabilitation Physicians →

Frequently Asked Questions

What is Mononeuropathy, unspecified (G58.9)?

Mononeuropathy, unspecified is an ICD-10 diagnosis code (G58.9) classified under Neurological conditions. It affects the Wrist/Hand and is commonly encountered in California workers' compensation claims. QME physicians evaluate this condition using AMA Guides 5th Edition protocols.

How is G58.9 rated for impairment?

The typical whole person impairment (WPI) range for Mononeuropathy, unspecified is 5-25% depending on nerve and severity. The exact rating depends on clinical findings, imaging, and the evaluation method (DRE or ROM) chosen by the QME physician per AMA Guides 5th Edition.

What is the QME evaluation process for G58.9?

Neurological examination, EMG/NCS for diagnosis and localization. Impairment per specific nerve involved using peripheral nerve tables.

What treatments are common for Mononeuropathy, unspecified?

Common treatments for Mononeuropathy, unspecified include Treatment per specific nerve involved, Physical therapy, Surgical decompression. Treatment appropriateness and outcomes are considered during the QME evaluation when determining permanent and stationary status and apportionment.