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S39.012A Other
Updated March 2026

Strain of muscle, fascia and tendon of lower back, initial encounter

ICD-10 Code: S39.012A · Body Part: Lumbar Spine

QME Evaluation Process

Lumbar ROM testing, palpation for spasm/tenderness. Most common initial diagnosis for lifting injuries. DRE Category I-II typically. Many resolve completely.

Typical Impairment Rating

0-8% WPI; DRE Category I (0%) if resolved, Category II (5-8%) if persistent

AMA Guides Edition

5th Edition

Common Treatments

+ Physical therapy
+ NSAIDs
+ Muscle relaxants
+ Activity modification

Related Conditions

Body Part Guide

Lumbar Spine Evaluation Guide

Impairment rating methods, common conditions, and QME evaluation protocols

View Guide →

QME Specialties for Strain of muscle, fascia and tendon of lower back, initial encounter

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Browse QME-certified physicians who evaluate strain of muscle, fascia and tendon of lower back, initial encounter and related lumbar spine conditions in California.

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Frequently Asked Questions

What is Strain of muscle, fascia and tendon of lower back, initial encounter (S39.012A)?

Strain of muscle, fascia and tendon of lower back, initial encounter is an ICD-10 diagnosis code (S39.012A) classified under Other 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 S39.012A rated for impairment?

The typical whole person impairment (WPI) range for Strain of muscle, fascia and tendon of lower back, initial encounter is 0-8% WPI; DRE Category I (0%) if resolved, Category II (5-8%) if persistent. 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 S39.012A?

Lumbar ROM testing, palpation for spasm/tenderness. Most common initial diagnosis for lifting injuries. DRE Category I-II typically. Many resolve completely.

What treatments are common for Strain of muscle, fascia and tendon of lower back, initial encounter?

Common treatments for Strain of muscle, fascia and tendon of lower back, initial encounter include Physical therapy, NSAIDs, Muscle relaxants, Activity modification. Treatment appropriateness and outcomes are considered during the QME evaluation when determining permanent and stationary status and apportionment.