How Justine will model the permanent-impairment rating.

A permanent-disability rating turns on a chain — whole-person impairment, the rating string, adjustments, and apportionment — where one mis-set value moves the award materially. A rating-modeling facet of Justine is designed to build that chain explicitly from the AMA Guides (5th Edition) as California applies it, show every step, and model the apportionment carve-out under Labor Code sections 4663 and 4664. It is built to construct the full rating string, apply the FEC or PDRS adjustment and age and occupational modifiers, and present a range where the medical opinion is contestable — so the attorney argues from a transparent computation, not a black box.

What WC is designed to do.

1. 01

   The facet is designed to assemble the rating string from the impairment number through the standard adjustment, occupational variant, and age — each element shown with the table and section of the Guides it derives from.

2. 02

   Apportionment will be modeled as a visible carve-out: the facet is built to separate industrial from non-industrial causation per the physician’s percentages, then show the award with and without the disputed apportionment so the attorney can weigh the fight.

3. 03

   Where the evaluator’s WPI is soft, the facet is designed to present a defensible range rather than a single number, anchoring each endpoint to the specific Guides language an applicant or defense reading would invoke.

4. 04

   Combined-values handling is the design intent for multi-region injuries — the facet will apply the Combined Values Chart and surface where a contended alternative method, such as adding rather than combining, changes the outcome.

5. 05

   A hypothetical 12% WPI rated to a higher PD figure after occupational and age adjustment, with a 25% non-industrial apportionment argued, is the kind of scenario the facet is built to lay out end to end for the attorney to certify.

The AI reasons; the attorney decides.