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Medical Terminology
Updated March 2026

Aggravation

Legal basis: LC §4663

Definition

The worsening of a pre-existing condition as a result of an industrial injury or work-related activities. In California workers' compensation, if work aggravates a pre-existing condition beyond its natural progression, the aggravation itself is compensable and subject to apportionment analysis.

Related Terms

Frequently Asked Questions

What is a Aggravation?

The worsening of a pre-existing condition as a result of an industrial injury or work-related activities. In California workers' compensation, if work aggravates a pre-existing condition beyond its natural progression, the aggravation itself is compensable and subject to apportionment analysis.

What is the legal basis for Aggravation in California workers' compensation?

Aggravation is governed by LC §4663 under California workers' compensation law. This statute defines the requirements, procedures, and standards for aggravation in the workers' compensation system as of 2026.

Why is aggravation important in workers' compensation?

Aggravation is a key medical concept in workers' compensation evaluations. Understanding this term helps physicians document findings accurately and helps attorneys and adjusters evaluate the medical aspects of a claim.