• Menu
  • Skip to right header navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Before Header

  • Facebook
  • Instagram
  • LinkedIn
  • TikTok
Call us | Montreal: (514) 526-2378 (LAMBERT) | Quebec: 418 526-2378 (LAMBERT) | 24h / 7 days in case of arrest

LAMBERT AVOCATS

Avocats SAAQ, Responsabilité civile, Recours collectifs à Montréal et les environs

  • About
        • Services
          • Class Actions
          • Civil Liability
          • Medical Liability
          • Car Accidents
          • Work Accidents
          • Victims of Criminal Offence
          • Retraite Québec
          • Social Welfare
          • Disability Insurance
          • Criminal Law
          • Penal Law
          • Disciplinary Law
        • Philosophy
          • Protection of your rights
          • Personalized service
          • Trust
        • Distinctions
          • Consumer Choice
          • Three Best Rated
        • Legal Fees
          • Percentage
          • Fixed
          • Hourly rate
          • Legal Aid
          • Legal Insurance
        • Press
          • Class Actions
          • Civil Liability
          • Administrative Law
          • Disability Insurance
  • Team
        • Lawyers / Representatives
          • Mtre Jimmy Ernst Jr. L. Lambert
          • Mtre Benjamin W. Polifort
          • Mtre Loran-Antuan King
          • Mtre Yahia Belhaddad
          • Mtre Felicia Rotaru
          • Mtre Sandra H. Kim
          • Mtre Olivier Hankins-Meilleur
          • Mtre Bo Chi Zhang
          • Mtre Philippe Brault
          • Daphné McConnell
        • Assistants
          • Jeannie Nguyen
          • Céline Slamani
          • Rubi Barboza Gomez
          • Emilie Leblanc
        • Bar Students / Interns
          • Mtre Mégane Rousseau
          • Sandrine Puchin
        • Students
  • Administrative Law
        • Car Accidents (SAAQ)
          • Your SAAQ file
            • Challenging a SAAQ decision
            • Application for administrative review to the SAAQ
            • SAAQ Administrative Review Decision
            • Recourse to the Tribunal administratif du Québec
            • Conciliation at the Tribunal administratif du Québec
            • Trial at the Tribunal administratif du Québec
            • Review of the judgment of the Tribunal administratif du Québec
            • Recourse to the Superior Court
          • Dispute period
          • Income replacement indemnity claim
          • Compensation for bodily injury
          • Compensation for psychological damage
          • Determined employment and return to work
          • Relapse, recurrence or aggravation
          • Causal link
          • Personal assistance at home
          • Request for reimbursement
        • Work Accidents (CNESST)
          • Contestation of a CNESST file
          • Income replacement indemnity
          • Employment
          • Compensation for relapse
          • Civil action for a work accident
        • Victims of Criminal Offence (IVAC)
          • Criminal acts covered by the IVAC
          • Criminal Compensation Lawyer
          • Victims of physical assault
          • Compensation for unemployed victims
          • Fault of the victim
          • Rehabilitation
        • Retraite Québec
          • Refusal of a request
          • Work income
          • Family allowances
          • Surviving spouse's pension
          • Supplement for disabled children
          • Progress of the file
        • Social Welfare
          • Marital life
          • Misrepresentation or fraud
          • Investigation
  • Civil Law
        • Civil Liability
          • How to prove the damage
          • Assessment of civil damage
          • Compensation for bodily injury
          • Injuries caused by a fall
          • Injuries caused by the ruin of a building
          • Liability of the city in case of lack of maintenance
          • Responsibility of the school
          • Fact of the goods
        • Medical Liability
          • Remedies for compensation
          • Medical negligence and unnecessary treatment
          • Surgical errors and early discharge from hospital
          • Misdiagnosis
          • Malfunction of medical devices
          • Code of Ethics of Physicians
        • Prosecuting your aggressor in civil proceedings
          • Criminal vs. civil hearing
          • Prescription
        • Contractual Law
          • Claim for damages
          • Letter of formal notice
        • Disability Insurance
          • Disability Insurance
        • Hidden Defects
  • Class Actions
        • Ongoing Class Actions
          • Coloplast
          • Canada Post
          • Nintendo
          • Samsung
          • Videotron
          • Car dealers
          • GoFundMe
          • Fever
          • Hyundai (paint)
          • Brewers
          • SAQ
          • Psycom
          • Volkswagen (water leak)
          • "Alcohol-free” products
          • Ticketmaster
          • Diocese of Gaspé
          • Diocese of Rimouski
          • Diocese of Rouyn-Noranda
          • Social media
          • Bread recall
          • Kia (paint)
          • Audi (oil)
          • Tequila
          • STM
          • DoorDash (tips)
          • Lafontaine Tunnel
          • Public Storage
          • Volkswagen (ID.4)
          • Nissan (paint)
          • Nissan (roof)
          • Nordik Spa
        • Completed Class Actions
          • Metro Metro Festival
          • Cogeco
          • DoorDash
          • Ironman
          • StockX
          • Croisières AML
          • Web Hosting Canada
          • UberEats
          • UberEats (Service Fees)
          • Laurentian Bank
        • Frequently asked questions
          • What are the steps of a class action?
          • How do I become a class member in a class action?
          • How to make a claim?
          • How much to receive as compensation?
          • When to receive compensation?
  • Criminal Law
        • Offences
          • Assault
          • Assault on a peace officer
          • Break and enter
          • Criminal negligence
          • Dangerous driving
          • Fraud
          • Hit-and-run
          • Impaired driving (DUI)
          • Mischief
          • Murder and attempted murder
          • Obstruction of justice
          • Possession of drugs and other substances
          • Possession of firearms
          • Sexual assault
          • Theft and possession of stolen goods
          • Threats
        • Procedure
          • Rights and freedoms in the event of arrest
          • Interim release
          • Elements of a criminal offence
          • Sentencing
          • Application for a record suspension
        • Charter Rights
          • Right to be informed of the reasons for arrest and right to counsel
          • Right to silence
          • Presumption of innocence
          • Right to be free from arbitrary detention or imprisonment
          • Right to be secure against unreasonable search or seizure
        • Defence
          • Coercion and necessity
          • Error of fact
          • Ignorance of the law
          • Intoxication
          • Self-defence
          • Not criminally responsible
          • Provocation
  • Penal Law
  • Disciplinary Law
    • Dentists
    • Engineers
    • Judges
    • Notaries
    • Nurses
    • Opticians
    • Optometrists
    • Psychologists
    • Real Estate Brokers
    • Veterinarians
  • Housing Law
    • Tenant Representation
      • Abandonment of housing
      • Pets and Rental Housing
      • Rent increase
      • Request for Deposit
      • Deposit: Illegal or Not?
      • Rodent infestation
      • Housing unfit for habitation
      • Obligations of delivery, maintenance, and fitness of the property
      • Repairs in the home
      • Neighbourhood disturbances
      • Validity of the lease
      • Sale of housing
    • Landlord Representation
      • Hidden defect lawyers
      • Death of the tenant
      • Eviction
      • Non-payment of rent and frequent delays
      • Repossession of accommodation
      • Termination, Sublease and Assignment of Lease
  • Aviation Lawyers
        • Passenger Rights
          • Travel insurance
          • Right to assistance
          • Right to compensation
          • Right to information
          • Right to care
          • Disclaimer
          • Carrier’s Obligations
          • Additional obligations of airlines
          • Penalties
        • Laws and regulations
          • Air Passenger Compensation
          • The Montreal Convention
          • International Civil Aviation Organization (ICAO)
          • European Regulation
        • Complaints procedure
          • Relevant documents and information to keep
          • Claim Form
          • Small claims claim
        • Special situations
          • Cessation of an airline’s activities
          • Rights of passengers with special needs
          • Denied boarding
  • Legal Capsules
        • General
          • Prescription
          • Guide to writing a letter of formal notice
          • Small Claims Court
          • Representing yourself in court without a lawyer
          • Recording a conversation
        • Civil Liability
          • Aquatic accidents
          • Boat accidents
          • Skiing accidents and other winter sports
          • Accidents during a hunting activity
          • Recreation
          • Burns caused by aesthetic care
          • Transmission of an STI
          • Dog bite or attack
          • Responsibility of a babysitter or daycare
          • Bullying at school
          • Defamation
        • Consumer Law
          • Unfair term in terms of membership
          • Punitive damages
          • Misrepresentation in advertisements
          • Cancellation fees
          • Extended warranty
          • Illegal pricing practice
            • Price Accuracy Policy
            • Additional fees in consumer contracts
          • Abusive loans
          • Flight delay, cancellation or overbooking
          • Telecommunications companies
            • Complaint to the Commission for Complaints for Telecom-television Services (CCTS)
            • Termination fees for telecommunications contracts
        • Car Accidents
          • After a car accident: the impact on victims
          • Compensation for an accident that occurred while using a vehicle
          • Accident with a snow removal vehicle
          • Injuries sustained in an automobile accident outside Quebec
          • Compensation by the SAAQ for personal assistance at home
          • The SAAQ’s no-fault regime
          • Simulation
        • Work Accidents
          • Accidents at work while working from home
          • Civil action for a work accident
          • Accident at work outside working hours
          • Presumption of occupational diseases
          • De Quervain’s tendinitis
          • Cannabis use in the workplace
          • Guide for victims of psychological harassment at work
        • Victims of Criminal Offence
          • Psychotherapy for the victim of criminal offence
  • Career
  • Reach us
  • English
    • Français
  • About
    • Services
      • Class Actions
      • Civil Liability
      • Medical Liability
      • Car Accidents
      • Work Accidents
      • Victims of Criminal Offence
      • Retraite Québec
      • Social Welfare
      • Disability Insurance
      • Criminal Law
      • Penal Law
      • Disciplinary Law
    • Philosophy
      • Protection of your rights
      • Personalized service
      • Trust
    • Legal Fees
      • Percentage
      • Fixed
      • Hourly rate
      • Legal Aid
      • Legal Insurance
    • Distinctions
      • Consumer Choice
      • Three Best Rated
    • Press
      • Class Actions
      • Civil Liability
      • Administrative Law
      • Disability Insurance
  • Team
    • Lawyers / Representatives
      • Mtre Jimmy Ernst Jr. L. Lambert
      • Mtre Benjamin W. Polifort
      • Mtre Loran-Antuan King
      • Mtre Yahia Belhaddad
      • Mtre Felicia Rotaru
      • Mtre Sandra H. Kim
      • Mtre Olivier Hankins-Meilleur
      • Mtre Bo Chi Zhang
      • Mtre Philippe Brault
      • Daphné McConnell
    • Assistants
      • Jeannie Nguyen
      • Céline Slamani
      • Rubi Barboza Gomez
      • Emilie Leblanc
    • Bar Students / Interns
      • Mtre Mégane Rousseau
      • Sandrine Puchin
    • Students
  • Administrative Law
    • Car Accidents (SAAQ)
      • Your SAAQ file
        • Challenging a SAAQ decision
        • Application for administrative review to the SAAQ
        • SAAQ Administrative Review Decision
        • Recourse to the Tribunal administratif du Québec
        • Conciliation at the Tribunal administratif du Québec
        • Trial at the Tribunal administratif du Québec
        • Review of the judgment of the Tribunal administratif du Québec
        • Recourse to the Superior Court
      • Dispute period
      • Income replacement indemnity claim
      • Compensation for bodily injury
      • Compensation for psychological damage
      • Determined employment and return to work
      • Relapse, recurrence or aggravation
      • Causal link
      • Personal assistance at home
      • Request for reimbursement
    • Work Accidents (CNESST)
      • Contestation of a CNESST file
      • Income replacement indemnity
      • Employment
      • Compensation for relapse
      • Civil action for a work accident
    • Victims of Criminal Offence (IVAC)
      • Criminal acts covered by the IVAC
      • Criminal Compensation Lawyer
      • Victims of physical assault
      • Compensation for unemployed victims
      • Fault of the victim
      • Rehabilitation
    • Retraite Québec
      • Refusal of a request
      • Work income
      • Family allowances
      • Surviving spouse’s pension
      • Supplement for disabled children
      • Progress of the file
    • Social Welfare
      • Marital life
      • Misrepresentation or fraud
      • Investigation
  • Civil Law
    • Civil Liability
      • How to prove the damage
      • Assessment of civil damage
      • Compensation for bodily injury
      • Injuries caused by a fall
      • Injuries caused by the ruin of a building
      • Liability of the city in case of lack of maintenance
      • Responsibility of the school
      • Fact of the goods
    • Medical Liability
      • Remedies for compensation
      • Medical negligence and unnecessary treatment
      • Surgical errors and early discharge from hospital
      • Misdiagnosis
      • Malfunction of medical devices
      • Code of Ethics of Physicians
    • Prosecuting your aggressor in civil proceedings
      • Criminal vs. civil hearing
      • Prescription
    • Contractual Law
      • Claim for damages
      • Letter of formal notice
    • Disability Insurance
      • Disability Insurance
    • Hidden Defects
  • Class Actions
    • Ongoing Class Actions
      • Coloplast
      • Canada Post
      • Nintendo
      • Samsung
      • Videotron
      • Car dealers
      • GoFundMe
      • Fever
      • Hyundai (paint)
      • Brewers
      • SAQ
      • Psycom
      • Volkswagen (water leak)
      • “Alcohol-free” products
      • Ticketmaster
      • Diocese of Gaspé
      • Diocese of Rimouski
      • Diocese of Rouyn-Noranda
      • Social media
      • Bread recall
      • Kia (paint)
      • Audi (oil)
      • Tequila
      • STM
      • DoorDash (tips)
      • Lafontaine Tunnel
      • Public Storage
      • Volkswagen (ID.4)
      • Nissan (paint)
      • Nissan (roof)
      • Nordik Spa
    • Completed Class Actions
      • Metro Metro Festival
      • Cogeco
      • DoorDash
      • Ironman
      • StockX
      • Croisières AML
      • Web Hosting Canada
      • UberEats
      • UberEats (Service Fees)
      • Laurentian Bank
    • Frequently asked questions
      • What are the steps of a class action?
      • How do I become a class member in a class action?
      • How to make a claim?
      • How much to receive as compensation?
      • When to receive compensation?
  • Criminal Law
    • Offences
      • Assault
      • Assault on a peace officer
      • Break and enter
      • Criminal negligence
      • Dangerous driving
      • Fraud
      • Hit-and-run
      • Impaired driving (DUI)
      • Mischief
      • Murder and attempted murder
      • Obstruction of justice
      • Possession of drugs and other substances
      • Possession of firearms
      • Sexual assault
      • Theft and possession of stolen goods
      • Threats
    • Procedure
      • Rights and freedoms in the event of arrest
      • Interim release
      • Elements of a criminal offence
      • Sentencing
      • Application for a record suspension
    • Charter Rights
      • Right to be informed of the reasons for arrest and right to counsel
      • Right to silence
      • Presumption of innocence
      • Right to be free from arbitrary detention or imprisonment
      • Right to be secure against unreasonable search or seizure
    • Defence
      • Coercion and necessity
      • Error of fact
      • Ignorance of the law
      • Intoxication
      • Self-defence
      • Not criminally responsible
      • Provocation
  • Penal Law
  • Disciplinary Law
    • Dentists
    • Engineers
    • Judges
    • Notaries
    • Nurses
    • Opticians
    • Optometrists
    • Psychologists
    • Real Estate Brokers
    • Veterinarians
  • Housing Law
    • Tenant Representation
      • Abandonment of housing
      • Pets and Rental Housing
      • Rent increase
      • Request for Deposit
      • Deposit: Illegal or Not?
      • Rodent infestation
      • Housing unfit for habitation
      • Obligations of delivery, maintenance, and fitness of the property
      • Repairs in the home
      • Neighbourhood disturbances
      • Validity of the lease
      • Sale of housing
    • Landlord Representation
      • Hidden defect lawyers
      • Death of the tenant
      • Eviction
      • Non-payment of rent and frequent delays
      • Repossession of accommodation
      • Termination, Sublease and Assignment of Lease
  • Aviation Lawyers
    • Passenger Rights
      • Travel insurance
      • Right to assistance
      • Right to compensation
      • Right to information
      • Right to care
      • Disclaimer
      • Carrier’s Obligations
      • Additional obligations of airlines
      • Penalties
    • Laws and regulations
      • Air Passenger Compensation
      • The Montreal Convention
      • International Civil Aviation Organization (ICAO)
      • European Regulation
    • Complaints procedure
      • Relevant documents and information to keep
      • Claim Form
      • Small claims claim
    • Special situations
      • Cessation of an airline’s activities
      • Rights of passengers with special needs
      • Denied boarding
  • Legal Capsules
    • General
      • Prescription
      • Guide to writing a letter of formal notice
      • Small Claims Court
      • Representing yourself in court without a lawyer
      • Recording a conversation
    • Civil Liability
      • Aquatic accidents
      • Boat accidents
      • Skiing accidents and other winter sports
      • Accidents during a hunting activity
      • Recreation
      • Burns caused by aesthetic care
      • Transmission of an STI
      • Dog bite or attack
      • Responsibility of a babysitter or daycare
      • Bullying at school
      • Defamation
    • Consumer Law
      • Unfair term in terms of membership
      • Punitive damages
      • Misrepresentation in advertisements
      • Cancellation fees
      • Extended warranty
      • Illegal pricing practice
        • Price Accuracy Policy
        • Additional fees in consumer contracts
      • Abusive loans
      • Flight delay, cancellation or overbooking
      • Telecommunications companies
        • Complaint to the Commission for Complaints for Telecom-television Services (CCTS)
        • Termination fees for telecommunications contracts
    • Car Accidents
      • After a car accident: the impact on victims
      • Compensation for an accident that occurred while using a vehicle
      • Accident with a snow removal vehicle
      • Injuries sustained in an automobile accident outside Quebec
      • Compensation by the SAAQ for personal assistance at home
      • The SAAQ’s no-fault regime
      • Simulation
    • Work Accidents
      • Accidents at work while working from home
      • Civil action for a work accident
      • Accident at work outside working hours
      • Presumption of occupational diseases
      • De Quervain’s tendinitis
      • Cannabis use in the workplace
      • Guide for victims of psychological harassment at work
    • Victims of Criminal Offence
      • Psychotherapy for the victim of criminal offence
  • Career
  • Reach us
  • English
    • Français

Presumption of occupational diseases

You are here: Home / CNESST / Presumption of occupational diseases

In this legal capsule, Me Lambert informs you about the legislation and jurisprudence dealing with the presumption of occupational diseases.

In order to have a medical condition recognized as an occupational disease, it must first be proven that the disease was contracted or developed during the work performed by the employee. The worker must also satisfy the court that his illness is associated with the type of work performed or the risks associated with it. Expert testimonials are usually necessary in order to build a good case and increase your chances of success.

However, the legislator provides, in the Act respecting industrial accidents and occupational diseases, a presumption of occupational disease in order to increase the chances of success for the worker making a claim.

relapse-back pain

Thus, a list of various diseases and conditions characteristic of several types of work is annexed at the end of this law. A worker suffering from a disease listed in the Annex need only prove the diagnosis and demonstrate that he was performing the type of work with which the disease is associated in order to trigger the presumption of occupational disease.

This list is divided into five categories.

Diseases caused by toxic substances

This category deals with several types of poisoning caused by exposure to metals, halogen or organic and inorganic matter of a toxic nature to humans.

Thus, a day labourer responsible for stripping paint containing lead on old windows can claim the presumption of occupational disease if the latter develops lead poisoning.

Diseases caused by infectious agents

In this category are several diseases and infections such as tuberculosis, parasite contraction and viral hepatitis. In general, they are associated with trades requiring contact with animals, animal products or humans.

For example, in one case, a nurse in a position in the hematology department in a hospital was often called upon to handle infected blood substances. A few years after retiring, she was diagnosed with hepatitis C. Medical evidence shows that she contracted this disease while still working in the hospital. The court therefore decided to apply the presumption of occupational disease and accepted the worker’s claim.

Skin diseases caused by non-infectious agents

This category includes several skin diseases such as dermatitis and dermatoses that are usually caused by the contact of irritants such as solvents or acids. Also recognized are skin diseases caused by contact with an abrasive surface creating friction and pressure on the skin as well as with allergenic products such as chromium.

Diseases caused by physical agents

This category includes illnesses caused by the physical strains that workers experience, either because of the tasks they have to perform or because of the work environment in which they operate. For example, hearing impairment, such as deafness, caused by exposure to excessive noise will be recognized as occupational diseases.

Thus, diseases caused by exposure to excessive temperature, vibration or compressed air will be considered occupational diseases.

This section also deals with diseases acquired through exposure to radiation that can lead to the development of cataracts or even cancer.

Finally, there are also musculoskeletal diseases caused by work involving repetitive movements. Among these recognized diseases are bursitis and tendonitis. To learn more, we recommend that you read our article on this topic.

Lung diseases caused by organic and inorganic dust

This category deals with lung diseases such as asthma or lung cancer that can be caused by substances harmful to humans such as asbestos. Note that the duration of intensity and exposure is not a determining factor for your declaration. The mere presence of toxic substances is sufficient for the presumption to apply.

That said, it is always important to properly document your file; medical evidence, testimonials and photographs are strongly suggested to increase the chances of success regarding your claim.

If you have more questions or a decision to challenge, do not hesitate to contact our firm for more information.

Related posts:

  1. De Quervain’s tendinitis: an occupational disease
  2. The presumption of responsibility: the fact of the goods
  3. Civil action for a work accident
  4. Accidents at work while working from home
Previous Post: « Prescription
Next Post: The obligation to minimize damage »

Primary Sidebar

Our office

best-law-firm-montreal
6 time winner of the Consumer Choice Award in the “Law firms” category in the Greater Montréal area.

Lambert-avocats-2025

4 time winner of the Three Best Rated awards in the “Personal Injury Lawyers” and “Medical Malpractice Lawyers” categories in the Greater Montréal area.

Fields of expertise

  • Road Accidents (SAAQ)
  • Work Accidents (CNESST)
  • Crime Victims (IVAC)
  • Québec Pension Plan
  • Social Assistance
  • Civil Liability
  • Class Actions
  • Criminal Law
  • Penal Law
  • Disciplinary Law
  • Housing Law
  • Aviation Law
  • Compensation delayed flights

Search

loader

Subscribe to our newsletter

Email Address*

Name

Footer

On the Web

  • Quebec Bar
  • Quebec Legal Network
  • Forbes
  • Facebook
  • Instagram
  • LinkedIn
  • TikTok

Specialities

  • Criminal lawyer
  • Lawyer for landlords – housing law
  • Lawyer for tenants – housing law
  • CNESST lawyer
  • Civil liability lawyer
  • Legal aid lawyer
  • Lawyer for flight cancellation compensation

Our office

1200, McGill College avenue, #1800, Montréal (QC) H3B 4G7

MONTRÉAL: (514) 526-2378 (LAMBERT)

QUÉBEC: (418) 526-2378 (LAMBERT)

TOLL-FREE: 1-855-331-1010

E-MAIL: info@lambertavocats.ca

Site Footer

Notice: Please note that the information on this site is provided for informational purposes only, without warranty. It does not constitute legal advice and does not establish an attorney-client relationship.

To obtain a legal advice from a lawyer, please contact us by contact form or by phone at (514) 526-2378 (514-LAMBERT).

Copyright © 2025

Sitemap · Legal Notice – SEO agency