Catastrophic Impairment

Catastrophic Impairment Assessments (SABS, Ontario)

Multidisciplinary catastrophic-impairment determinations under the Statutory Accident Benefits Schedule, Section 3.1 — using AMA Guides 4th edition, Glasgow Coma Scale, Glasgow Outcome Scale Extended, ASIA standards and Class 4 / Class 5 mental and behavioural impairment frameworks.

When a catastrophic determination matters

Under SABS, a catastrophic designation moves the claimant from a $65,000 Non-MIG benefit pool to a $1,000,000 benefit pool for life, plus attendant care up to $6,000 per month. The determination is binary — either the criteria are met or they are not — but the file behind it is rarely simple. We provide the multidisciplinary work-up that supports a defensible determination either way.

SABS criteria we assess against

  • Criterion 1 — Paraplegia or tetraplegia. ASIA-based.
  • Criterion 2 — Severe impairment of ambulatory mobility / use of upper limb. Distance, time and assistive-device thresholds.
  • Criterion 3 — Amputation or other loss of use. Defined functional thresholds.
  • Criterion 4 — Loss of vision. Best corrected, both eyes.
  • Criterion 5 — Traumatic brain injury (adult and paediatric pathways). GCS, GOS-E, neuroimaging.
  • Criterion 6 — Mental or behavioural impairment with Class 4 marked impairment in one area or Class 5 extreme impairment. Standardised psychological assessment.
  • Criterion 7 — 55% whole-person impairment combining physical and mental. AMA Guides 4th edition.
  • Criterion 8 — Combined Criterion 6 + 7.

Our multidisciplinary CAT panel

A defensible CAT report typically requires three to seven assessors. We assemble the panel from our roster and a network of consulting specialists:

  • Physiatrist (lead assessor on most files)
  • Neuropsychologist (Criteria 5, 6, 7, 8)
  • Psychiatrist or Psychologist (Criterion 6)
  • Orthopaedic / Neurological consultants where indicated
  • Occupational Therapist (functional impact, attendant care)
  • Physiotherapist (mobility, ambulation, ASIA)

Process and turnaround

Step 1 — referral and file review (2–3 business days). Step 2 — examinations scheduled with each panel member; typically 3–6 weeks depending on availability and claimant scheduling. Step 3 — integrated report from the lead assessor within 10 business days of the final examination.

What you receive

  • Individual discipline reports per AMA Guides 4th ed. / SABS criteria
  • Integrated CAT report with combined whole-person impairment calculation
  • Defensible methodology section with traceable scoring
  • Functional impact narrative supporting the determination
  • Attendant-care Form 1 recommendation where applicable

Frequently asked questions

Yes. We follow FSRA conflict-of-interest expectations.

Section 25 caps assessment costs; we work within the cap and provide a written fee estimate at referral.

Yes, with appropriately trained neuropsychology assessors.