How are multiple impairments rated?
Convert each to WPI, combine with the Combined Values Chart (CVC), then adjust for DFEC, age, and occupation.
Mnemonic for multiple impairment steps
“C-WAD” — Combine WPI, Adjust DFEC/Age/Occupation, Done.
Why must QME describe objective findings?
Objective deficits are required by AMA Guides; subjective complaints alone cannot support WPI.
What if an impairment doesn’t match AMA chapter?
QME may use Almaraz/Guzman to justify alternate chapter or method with clear rationale.
Can WPI be 0% if patient has symptoms?
Yes — if no objective impairment is found or symptoms don’t meet AMA criteria.
What is the pain add-on limit again?
Up to 3% WPI maximum per Guides when pain adds measurable functional loss.
Why must QME describe ROM (Range of Motion)?
ROM loss is key metric in many body part ratings under AMA Guides.
Mnemonic for ROM rating
“MOTION → %.”
How is spinal impairment usually rated?
By DRE (Diagnosis-Related Estimates) or ROM method if DRE doesn’t fit; must document which method used.
What is DRE category system?
5 categories (I–V) for spinal injuries, each with defined impairment % ranges.
Mnemonic for DRE
“I Mild → V Severe.”
Can QME switch from DRE to ROM?
Yes, if DRE doesn’t fit; must justify using Almaraz/Guzman reasoning.
Why document neurologic deficits?
Radiculopathy or nerve injury can increase WPI and change rating category.
How to rate amputations?
Use AMA tables for specific level; convert regional impairment to WPI, then to PD.
Mnemonic for amputation
“Level → % → WPI → PD.”
What is ankylosis rating?
Fusion/stiff joint is rated using specific AMA impairment tables for that joint.
Why include surgical history in rating?
Surgical changes (fusion, prosthetics) alter impairment level and may increase WPI.
What is assistive device adjustment?
Use of braces, canes, etc. can increase impairment if medically necessary and permanent.
Mnemonic for device impact
“ADDS” — Assistive Device = Disability Shift.
What is Combined Values Chart (CVC) key rule?
Combine, don’t add; prevents exceeding 100% and reflects overlapping functional loss.
Can WPI exceed 100%?
No — maximum whole person impairment is 100%.
Why note dominance (right vs left hand)?
Dominant hand impairment often rated higher due to greater functional impact.
How to handle multiple surgeries on one body part?
Rate final impairment considering all residuals; don’t rate each surgery separately.
Why use exact AMA table numbers?
Allows DEU/judges to verify rating and avoids disputes about methodology.