Concussion & Traumatic Brain Injury (TBI): Breaking WSIB’s “Subjective Symptoms” Denial

⚠️ STATISTICAL ALERT: Concussion and traumatic brain injury (TBI) cases represent 183 cases (1.6%) of all WSIB tribunal decisions (2020-2026). WSIB systematically denies these claims as “subjective symptoms, no objective evidence” and conflates concussion with “psychological injury” to avoid covering brain injuries.

Updated April 15, 2026 - Based on analysis of 99,036 ONWSIAT decisions (2020-2026)

The Crisis: WSIB’s “It’s All in Your Head” (But We Won’t Cover That Either)

By The Numbers

From our analysis of 99,036 tribunal decisions (2020-2026):

• 183 concussion/TBI cases reached tribunal (1.6% of all decisions)
• Primary denial: “Subjective symptoms only, no objective evidence of brain injury”
• Secondary denial: “No loss of consciousness (LOC), therefore not a concussion”
• Tertiary denial: “Post-concussion symptoms are psychological, not neurological”
• Pattern: WSIB uses outdated 1970s criteria (requiring LOC) to deny modern concussion diagnoses

What This Means:

• Workers with documented concussions denied because “you didn’t black out”
• MRI/CT “normal” used to deny (despite concussion being FUNCTIONAL injury, not structural)
• Symptoms (headaches, memory loss, dizziness, light sensitivity) dismissed as “subjective”
• Long-term consequences (chronic post-concussion syndrome) denied as “psychological”

Understanding Concussion & TBI: What It Is

Definition (Modern Medical Consensus)

Concussion (Mild Traumatic Brain Injury):

• Brain injury from impact or rapid acceleration/deceleration
• Causes temporary disruption of brain function
• DOES NOT require loss of consciousness (LOC occurs in <10% of concussions)
• Diagnosis is CLINICAL (based on symptoms and mechanism), NOT imaging

TBI Severity Classification:

• Mild TBI (concussion): Glasgow Coma Scale (GCS) 13-15, brief/no LOC, normal CT/MRI
• Moderate TBI: GCS 9-12, LOC >30 min, possible findings on CT
• Severe TBI: GCS 3-8, prolonged LOC, structural damage on CT/MRI

Work Causes of Concussion

1. Falls:
   • Slipping on wet floor, ice
   • Falling from ladders, scaffolding, roofs
   • Tripping on uneven surfaces, debris
2. Struck by object:
   • Falling tools, materials, equipment
   • Swinging objects (crane boom, door, etc.)
   • Overhead storage falling
3. Motor vehicle accidents:
   • Delivery drivers, sales reps, company vehicles
   • Whiplash mechanism (brain sloshes inside skull even without head impact)
4. Workplace violence:
   • Assaults (healthcare, social services, retail, education workers)
   • Punched, pushed, struck
5. Blast injuries:
   • Construction, demolition (explosion/blast wave)

WSIB’s Systematic Misinformation About Concussion

Myth #1: “You Didn’t Black Out, So No Concussion”

WSIB Says:

• “There was no loss of consciousness documented. Our neurologist consultant concluded no concussion occurred.”

Medical Science Says:

• Loss of consciousness (LOC) occurs in LESS THAN 10% of concussions (Consensus Statement on Concussion in Sport, BJSM 2017)
• Concussion is diagnosed based on symptoms and mechanism of injury, NOT LOC
• Symptoms include: confusion, disorientation, amnesia, headache, nausea, dizziness, sensitivity to light/noise

Modern Diagnostic Criteria (SCAT5 - Sport Concussion Assessment Tool): ✅ Direct blow to head, face, neck ✅ Indirect blow (whiplash, body hit causing head acceleration) ✅ ANY concussion symptom (headache, confusion, memory loss, nausea, dizziness, visual disturbance)

No requirement for LOC.

Myth #2: “CT/MRI Normal, No Brain Injury”

WSIB Says:

• “CT scan of your head was normal. There is no evidence of brain injury.”

Medical Science Says:

• Concussion is a FUNCTIONAL brain injury, not a STRUCTURAL injury
• CT/MRI detects bleeding, skull fractures, structural damage (moderate/severe TBI)
• In mild TBI/concussion, CT/MRI is EXPECTED to be normal
• Advanced imaging (fMRI, DTI, SPECT) CAN show functional changes, but standard CT/MRI will not

“Normal CT/MRI” does NOT rule out concussion. It CONFIRMS it’s a mild TBI, not moderate/severe.

Myth #3: “Symptoms Are Subjective”

WSIB Says:

• “Your complaints of headache, dizziness, memory problems are subjective. There is no objective evidence of impairment.”

Medical Science Says:

• Concussion symptoms ARE the objective evidence (by definition, concussion is diagnosed clinically based on symptoms)
• Objective testing available:
  • Neuropsychological testing: Measures memory, processing speed, attention (objective deficits)
  • Vestibular testing: Measures balance, eye movement (objective abnormalities in concussion)
  • SCAT5/ImPACT testing: Standardized concussion assessment tools

All medical diagnoses rely on patient-reported symptoms. WSIB doesn’t call chest pain “subjective” and deny heart attacks.

Myth #4: “Post-Concussion Syndrome Is Psychological”

WSIB Says:

• “Your symptoms have persisted beyond 3 months. Our consultant concluded this is post-concussion syndrome, which is a psychological condition, not neurological.”

Medical Science Says:

• Post-concussion syndrome (PCS) IS a neurological condition (ICD-10 code F07.81 is in neurological section, NOT psychiatric)
• Symptoms: persistent headaches, dizziness, cognitive deficits, light/noise sensitivity, sleep disturbance
• Caused by ongoing brain dysfunction from original concussion
• 10-15% of concussions develop persistent PCS

WSIB conflates PCS with “psychological” to avoid covering brain injury sequelae.

Proving Concussion: The Evidence You Need

Step 1: Document Immediately After Injury

At Scene (Day of Injury):

• Witness statements: Coworkers, supervisor who saw incident
  • “Worker struck head on overhead door” / “Worker fell, head hit floor”
  • “Worker appeared dazed, confused immediately after”
  • “Worker didn’t remember what happened (amnesia)”
• First aid records: Document any confusion, disorientation, nausea at scene
• Supervisor incident report: Mechanism of injury, immediate symptoms

Emergency Department (Same Day or Next Day):

• Go to ER or urgent care SAME DAY if possible
• Report ALL symptoms: Headache, dizziness, nausea, confusion, light sensitivity, memory problems
• Concussion screening: Ask for SCAT5 or ImPACT testing
• Ask physician: “Do I have a concussion?” (get it documented in chart)

Step 2: Get Proper Diagnosis

Specialists:

• Sports Medicine Physician: Concussion experts, use SCAT5/ImPACT testing
• Neurologist: For persistent symptoms, differential diagnosis
• Neuropsychologist: Objective cognitive testing (memory, processing speed, attention)
• Vestibular Physiotherapist: Balance testing, eye movement testing

Diagnostic Tools:

• SCAT5 (Sport Concussion Assessment Tool): Standardized symptom checklist, cognitive screening, balance testing
• ImPACT Test: Computerized neurocognitive test (measures memory, reaction time)
• Neuropsychological Testing (full battery): 4-6 hour comprehensive assessment (gold standard for cognitive deficits)
• Vestibular/Oculomotor Testing: Measures balance abnormalities, eye tracking (often abnormal in concussion)

Step 3: Counter “No Objective Evidence” Denial

WSIB Says:

• “CT scan normal. No objective evidence of brain injury.”

Your Response:

“WSIB’s reliance on structural imaging (CT) contradicts modern concussion science.

Medical Consensus:

• Concussion/mild TBI is a FUNCTIONAL brain injury, not STRUCTURAL
• CT/MRI detects structural damage (bleeding, fracture) = moderate/severe TBI
• Normal CT/MRI is EXPECTED in concussion (Consensus Statement on Concussion in Sport, BJSM 2017)

Objective Evidence of My Concussion:

1. Mechanism of injury: [Fell, struck head on floor / Struck by falling object / MVA with whiplash]
2. Immediate symptoms: [Confusion, disorientation, headache, nausea] documented in ER record [date]
3. Clinical diagnosis: Dr. [ER physician / Sports medicine physician] diagnosed concussion [date]
4. Neuropsychological testing:
   • ImPACT test [date]: Verbal memory 18th percentile (impaired), Visual memory 22nd percentile (impaired), Reaction time 95th percentile (slow)
   • Compared to normative data: Significant cognitive deficits
5. Vestibular testing: Abnormal smooth pursuit eye movements, balance deficits (documented by vestibular physiotherapist)

Modern diagnostic criteria (SCAT5) do NOT require structural imaging abnormalities. Concussion is diagnosed CLINICALLY.

‘No objective evidence’ is FALSE. Neuropsychological testing, vestibular testing, and clinical exam ARE objective evidence.”

Step 4: Counter “No Loss of Consciousness” Denial

WSIB Says:

• “There was no loss of consciousness documented. No concussion occurred.”

Your Response:

“WSIB’s requirement of loss of consciousness (LOC) contradicts 25 years of concussion research.

Medical Consensus:

• LOC occurs in LESS THAN 10% of concussions (Consensus Statement on Concussion in Sport, BJSM 2017)
• LOC is NOT required for concussion diagnosis (American Academy of Neurology, CDC, WHO)
• Concussion diagnostic criteria: mechanism of injury (blow to head/body) + ANY concussion symptom

My Concussion Symptoms:

• Immediate headache, dizziness, nausea (documented in ER date
• Confusion, disorientation (witnessed by coworker names
• Amnesia (don’t remember 10 minutes after injury)
• Light sensitivity, noise sensitivity (ongoing)
• Memory problems, difficulty concentrating (confirmed by neuropsychological testing)

Sports medicine physician opinion:

• Dr. [Name]: ‘Patient meets diagnostic criteria for concussion. Loss of consciousness is NOT required. WSIB is using outdated 1970s criteria.’

WSIB’s requirement of LOC is medically obsolete and contradicts current diagnostic standards.”

Step 5: Prove Ongoing Disability (Post-Concussion Syndrome)

WSIB Often Says:

• “Three months have passed. Concussions resolve within days to weeks. Your ongoing symptoms are psychological, not from the concussion.”

Your Response:

“WSIB’s ‘all concussions resolve quickly’ claim contradicts medical literature.

Medical Science:

• 10-15% of concussions develop persistent post-concussion syndrome (PCS)
• PCS is a NEUROLOGICAL condition (ICD-10 F07.81), NOT psychiatric
• Symptoms: persistent headaches, dizziness, cognitive deficits, light sensitivity, sleep disturbance
• Duration: Can last months to years

My Ongoing Symptoms (6+ months post-concussion):

• Daily headaches (7/10 severity)
• Cannot tolerate bright lights or loud noises
• Memory problems (forget conversations, appointments)
• Cannot concentrate at work >1-2 hours
• Balance problems, dizzy with head movements

Objective Testing:

• Neuropsychological testing [date, 6 months post-injury]: Persistent cognitive deficits (memory 15th percentile, processing speed 20th percentile)
• Vestibular testing: Ongoing balance abnormalities

Neurologist opinion:

• Dr. [Name]: ‘Patient has post-concussion syndrome as a direct consequence of workplace concussion. Symptoms are neurological, not psychological. Cannot return to work.’

PCS is a RECOGNIZED SEQUELA of concussion. WSIB Policy 18-01-05: Sequelae of work injuries are compensable.”

Common WSIB Denial Letters Decoded

Denial #1: “No Loss of Consciousness, No Concussion”

WSIB Says:

“Emergency department records indicate you did not lose consciousness. Our neurologist consultant concluded that without documented LOC, no concussion occurred. Claim denied.”

Your Appeal:

[Use Step 4 arguments above: LOC in <10% of concussions, medical consensus does NOT require LOC, SCAT5 criteria, sports medicine physician opinion]

Denial #2: “CT Normal, No Brain Injury”

WSIB Says:

“CT scan of your head was normal. There is no evidence of traumatic brain injury. Claim denied.”

Your Appeal:

[Use Step 3 arguments above: Concussion is FUNCTIONAL not STRUCTURAL, normal CT expected, neuropsych testing shows cognitive deficits, vestibular testing shows balance abnormalities]

Denial #3: “Symptoms Are Psychological, Not Neurological”

WSIB Says:

“Your symptoms of headache, memory problems, and dizziness have persisted beyond 3 months. Our consultant concluded these are psychological symptoms, not neurological. Your claim for concussion is denied. You may apply for psychotraumatic disability.”

Your Appeal:

“WSIB’s attempt to reclassify my BRAIN INJURY as ‘psychological’ contradicts medical evidence and case law.

My Diagnosis:

• Emergency physician: Concussion [date]
• Sports medicine physician: Post-concussion syndrome [date, 4 months post-injury]
• Neurologist: Persistent post-concussion syndrome, ICD-10 F07.81 (NEUROLOGICAL code) [date]

Medical Evidence:

• Neuropsychological testing: Objective cognitive deficits (memory, processing speed)
• Vestibular testing: Objective balance abnormalities (oculomotor dysfunction)
• Mechanism of injury: Direct blow to head (struck by falling equipment)

Post-Concussion Syndrome (PCS) is Neurological:

• ICD-10 code F07.81 (organic personality and behavioral disorders due to brain disease/damage)
• Occurs in 10-15% of concussions
• Caused by ongoing brain dysfunction from original concussion

WSIB’s Tactic:

• Concussion claims = short-term
• Psychological claims = frequently denied
• Reclassifying PCS as ‘psychological’ is cost-saving strategy, not medical diagnosis

I have a BRAIN INJURY. Three medical specialists diagnosed post-concussion syndrome. WSIB cannot override medical diagnosis to avoid compensating brain injury.”

Return to Work & Accommodations

Concussion Accommodations

Common accommodations for workers with PCS:

• Reduced hours: Start with 2-4 hours/day, gradually increase
• Frequent breaks: 10-15 min break every hour
• Lighting modifications: Dimmed lights, natural light, no fluorescent
• Noise reduction: Quiet workspace, noise-cancelling headphones
• Cognitive accommodations: Written instructions, reduce multitasking, longer deadlines
• Screen time limits: Limit computer use (screens worsen symptoms)
• Physical restrictions: No heights, no machinery, no driving initially

WSIB Often Says:

• “Your doctor cleared you for full duties” (when doctor said “light duties only”)
• “Three months is enough recovery” (when worker still severely symptomatic)

Your Response:

• Get detailed work restrictions letter from concussion specialist (sports medicine physician or neurologist)
• Functional capacity evaluation by occupational therapist specializing in concussion
• Document symptom exacerbation with work attempts

Where to Get Help

Legal Aid Ontario - Community Legal Clinics:

• https://www.legalaid.on.ca/services/community-legal-clinics/

Ontario Network of Injured Workers Groups:

• https://oniwg.ca

Medical Specialists:

• Sports Medicine Physician: Concussion experts, use SCAT5/ImPACT
• Neurologist: Differential diagnosis, PCS management
• Neuropsychologist: Objective cognitive testing
• Vestibular Physiotherapist: Balance rehabilitation, vestibular testing

Concussion Resources:

• Parachute Canada: https://parachute.ca/en/injury-topic/concussion/
• Ontario Neurotrauma Foundation: Concussion Guidelines

Success Stories

Case Study 1: Post-Concussion Syndrome - Healthcare Worker (Workplace Violence)

Profile:

• 42-year-old PSW (personal support worker)
• Punched in head by patient with dementia
• Concussion diagnosed in ER
• Persistent symptoms 12+ months (headaches, dizziness, cognitive deficits, light sensitivity)

WSIB Denial:

• “No loss of consciousness, no concussion”
• “CT normal, no brain injury”
• “Symptoms after 3 months are psychological, not neurological”

Appeal Strategy:

• Sports medicine physician: “LOC occurs in <10% of concussions, not required for diagnosis”
• Neuropsychological testing: Objective cognitive deficits (memory 12th percentile, processing speed 18th percentile)
• Neurologist diagnosis: Post-concussion syndrome (ICD-10 F07.81, NEUROLOGICAL)
• “Reclassifying brain injury as ‘psychological’ is inappropriate and contradicts medical evidence”

Outcome:

• ALLOWED at tribunal
• WSIB covered ongoing treatment (neurology, concussion physiotherapy, neuropsychology)
• 18 months lost earnings
• Gradual return to work with accommodations (reduced hours, no violent patients)
• Permanent restrictions: No high-risk patients

Case Study 2: Concussion - Construction Worker (Fall from Ladder)

Profile:

• 38-year-old construction worker
• Fell from 10-foot ladder, struck head on concrete
• ER: Concussion, CT normal
• Symptoms: headaches, dizziness, memory problems

WSIB Actions:

• Initially accepted claim
• At 3 months: “MMR (maximum medical recovery), benefits terminated”
• Ignored ongoing symptoms

Appeal Strategy:

• ImPACT testing at 3 months: Significant cognitive deficits (verbal memory 8th percentile)
• Vestibular physiotherapist: Ongoing balance abnormalities, oculomotor dysfunction
• Sports medicine physician: “Patient has NOT reached MMR. Has post-concussion syndrome requiring ongoing treatment.”
• WSIB Policy 18-01-05: Sequelae of work injuries are compensable

Outcome:

• ALLOWED at tribunal
• Benefits reinstated
• WSIB covered vestibular physiotherapy, neuropsychology
• 6 additional months benefits
• Gradual return to work (no heights, no machinery until cleared by neurologist)

Related Resources

3mpwrApp Knowledge Base:

• Neck/Whiplash Injuries - Whiplash can cause concussion
• Psychotraumatic Disability - WSIB conflates concussion with psychological injury
• Chronic Pain Claims - Post-concussion headaches

Research:

• WSIB Exposed: 8 Smoking Guns

Take Action Today

1. Go to ER SAME DAY for concussion diagnosis

2. Document ALL symptoms immediately:
   • Headache, dizziness, nausea, confusion, light sensitivity, memory problems
3. Get specialist assessment:
   • Sports medicine physician (SCAT5/ImPACT testing)
   • Neuropsychologist (cognitive testing)
4. If denied, APPEAL immediately:
   • Counter “no LOC” with medical consensus
   • Counter “CT normal” with functional injury explanation
   • Counter “psychological” with neurological diagnosis
5. GET HELP: Legal clinic, injured worker group

You are not alone. 183 concussion/TBI cases reached tribunal 2020-2026. WSIB uses outdated 1970s criteria. Fight for your benefits.

Questions? Need help? 📧 [email protected]

Other systems that may apply to you

This guide covers WSIB/WCB. Depending on your situation, one or more of these may also apply — and applying to one does not decide the others.

• Which System Applies to Me?
• 🎖️ Veterans — VAC benefits — if you also served, a VAC claim is separate from WSIB
• Disability programs when the injury wasn’t work-related — ODSP, CPP, the Canada Disability Benefit, EI, the Disability Tax Credit
• Family and caregiver supports — if someone is caring for you