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IMEPro
M54.42 Musculoskeletal
Updated March 2026

Lumbago with sciatica, left side

ICD-10 Code: M54.42 · Body Part: Lumbar Spine

QME Evaluation Process

Lumbar ROM testing, straight leg raise, neurological examination, imaging review. DRE method preferred.

Typical Impairment Rating

10-25% WPI per DRE Category II-IV

AMA Guides Edition

5th Edition

Common Treatments

+ Physical therapy
+ Epidural steroid injections
+ NSAIDs

Related Conditions

Body Part Guide

Lumbar Spine Evaluation Guide

Impairment rating methods, common conditions, and QME evaluation protocols

View Guide →

QME Specialties for Lumbago with sciatica, left side

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Browse QME-certified physicians who evaluate lumbago with sciatica, left side and related lumbar spine conditions in California.

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Frequently Asked Questions

What is Lumbago with sciatica, left side (M54.42)?

Lumbago with sciatica, left side is an ICD-10 diagnosis code (M54.42) classified under Musculoskeletal conditions. It affects the Lumbar Spine and is commonly encountered in California workers' compensation claims. QME physicians evaluate this condition using AMA Guides 5th Edition protocols.

How is M54.42 rated for impairment?

The typical whole person impairment (WPI) range for Lumbago with sciatica, left side is 10-25% WPI per DRE Category II-IV. 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 M54.42?

Lumbar ROM testing, straight leg raise, neurological examination, imaging review. DRE method preferred.

What treatments are common for Lumbago with sciatica, left side?

Common treatments for Lumbago with sciatica, left side include Physical therapy, Epidural steroid injections, NSAIDs. Treatment appropriateness and outcomes are considered during the QME evaluation when determining permanent and stationary status and apportionment.