M
IMEPro
Impairment Rating
Updated March 2026

Pain Add-On

Definition

An additional impairment percentage of up to 3% WPI that may be added to the standard impairment rating when chronic pain results in functional limitations beyond what is captured by the standard rating criteria. The AMA Guides Chapter 18 provides the framework for evaluating pain-related impairment.

Key Facts About Pain Add-On in 2026

QME Physicians in CA

~2,500

Evaluation Fee Range

$2,500-$4,000

Report Deadline

30 days

Avg AI-Assisted Turnaround

14 days

Related Terms

Frequently Asked Questions

What is a Pain Add-On?

An additional impairment percentage of up to 3% WPI that may be added to the standard impairment rating when chronic pain results in functional limitations beyond what is captured by the standard rating criteria. The AMA Guides Chapter 18 provides the framework for evaluating pain-related impairment.

How is pain add-on calculated in California?

Pain Add-On in California workers' compensation is typically determined using the AMA Guides to the Evaluation of Permanent Impairment, 5th Edition (2001). QME and AME physicians use standardized rating methods to ensure consistency across evaluations.