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Medical Terminology
Updated March 2026

Reasonable Medical Probability

Definition

The standard of proof required for medical opinions in workers' compensation, meaning the physician's opinion is based on a likelihood of more than 50% — more probable than not. Medical opinions expressed as mere possibility are insufficient and may be rejected as lacking substantial medical evidence.

Related Terms

Frequently Asked Questions

What is a Reasonable Medical Probability?

The standard of proof required for medical opinions in workers' compensation, meaning the physician's opinion is based on a likelihood of more than 50% — more probable than not. Medical opinions expressed as mere possibility are insufficient and may be rejected as lacking substantial medical evidence.

Why is reasonable medical probability important in workers' compensation?

Reasonable Medical Probability 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.