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  • Businesses
    • Registration and coverage
      • Overview
      • Do you need to register with us?
      • Information you need to register your business
      • Employer Classification Manual (ECM)
      • Optional insurance
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      • New employers - what you need to know
      • Mandatory coverage in the construction industry
      • Meeting your responsibilities
    • Premiums and payment
      • Overview
      • 2023 Premium Rates
      • Rates from past years
      • How to report and pay your premiums
      • Understanding your rate
      • How to calculate your premium and insurable earnings
      • Premiums and payment FAQs
      • Reconciliation
      • Clearances
      • Business audits
      • Schedule 2
      • Experience rating programs
      • Surplus rebate
    • Account maintenance
      • Overview - Managing your account
      • Account balance and statements
      • Ownership changes
      • Changes to your business
      • Business activity change
      • Buying or selling your business
      • Authorizing a business representative
      • How to communicate with the WSIB by email
      • Closing your account
    • Claims
      • Overview
      • Injury or illness reporting
      • COVID-19 FAQs for business accounts
      • Occupational disease and workplace health hazards
      • Benefits provided to people with claims
      • Administrative Practice Documents
    • Return to work
      • Overview
      • Return-to-work responsibilities
      • Getting help
      • Co-operating in the return-to-work process
      • Return to work and disability resources
      • Service providers
    • Appeals
      • Overview
      • Objecting to a WSIB decision
      • Employer account operations decision
      • Review of claim file
      • Formal appeal
      • Representation
      • Appeal is registered
      • The oral hearing
      • Withdrawals
      • Appeals decision
      • Disagreeing with a decision of the ARO
      • Appeals: Common definitions
    • Small business
      • Overview
      • Benefits and programs
    • Health and safety
      • Overview
      • Health and Safety Excellence program
      • Training
      • Health and safety community
      • Your health and safety rights and responsibilities
      • Safety Check
    • Forms: Businesses
      • Overview
    • Resources
      • Overview
      • Your Guide: Services and Responsibilities – Business Edition
  • Injured or ill people
    • Claims
      • Overview
      • Report an injury or illness
      • Making a claim for occupational disease
      • Making a claim for noise-induced hearing loss
      • Making a claim for COVID-19
      • Make a claim for work-related mental stress
      • Online services for your claim
      • Benefits
      • Occupational disease and survivors benefits program
      • Meeting your responsibilities
      • Administrative Practice Documents
    • Return to work
      • Overview
      • Responsibilities for workers
      • Getting help with work reintegration for workers
      • Co-operating in the return-to-work process
      • Return to work and disability resources
      • Service providers
    • Appeals
      • Overview
      • Objecting to a WSIB decision
      • Employer account operations decision
      • Review of claim file
      • Formal appeal
      • Representation
      • Appeal is registered
      • The oral hearing
      • Withdrawals
      • Appeals decision
      • Disagreeing with a decision of the ARO
    • Health and safety
      • Overview
      • Health and safety community
      • Your health and safety rights and responsibilities
      • Training programs
    • Forms: Injured or ill people
      • Overview
    • Resources for injured or ill people
      • Overview
      • Programs of care
      • Community Mental Health Program
      • Your Guide: Benefits, Services and Responsibilities – Worker Edition
  • Health care providers
    • Provider information
      • Overview
      • Reporting requirements
      • Meeting your responsibilities
    • Provider fees
      • Overview
      • Health practitioner fees
      • Guidelines
    • Preferred suppliers
      • Overview
      • Health care equipment and supplies
      • Information about hearing devices
    • Occupational disease
      • List of occupational diseases adjudicated by WSIB
    • Programs
      • Overview
      • Community Mental Health Program
      • Programs of Care
      • Occupational health assessment program
      • Specialty programs
      • Drug benefit program
      • Serious injury program
    • Forms
      • Overview
    • Resources
      • Overview
      • Health care practitioners & the WSIA
      • Physician learning modules
      • Operational policy manual

Operational Policy Manual

  • OPM Home
  • User guide
    • User guide
  • Decision Making
    • Adjudication Principles
    • Types of Claims
  • Coverage
    • Employer Coverage
    • Independent Operators
    • Optional Insurance
    • Special Cases (Worker Coverage)
  • Safety and Prevention
    • Experience Rating
  • Employer Obligations
    • Employer Classification
    • Employer Accounts
    • Employer Billing
    • Employer Collections
    • Accident Cost Adjustments
  • Claims
    • Reporting an Injury/Disease
    • Work Relatedness
    • In the Course of and Arising Out of
    • Disabilities/Impairments Resulting from Accidents
    • Secondary Conditions
    • Special Circumstances
  • Long Term Exposures
    • Disablements
    • Occupational Diseases
  • Health Care
    • General
    • Reports
    • Treatment Fees
    • Examinations
    • Independent Living
    • Prosthetic and Assistive Devices
  • Benefit Payments
    • General
    • Average Earnings
    • Loss of Earnings (LOE) (Accidents from 1998)
    • Future Economic Loss (FEL) (Accidents from 1990-1997)
    • Non-Economic Loss (NEL) (Accidents from 1990)
    • Temporary Disability Benefits (Accidents before 1998)
    • Permanent Disability Benefits (Accidents before 1990)
  • Return to Work
    • Return To Work (RTW)
    • Re-employment in the Construction Industry
  • Survivors
    • General
    • Services for Survivors
    • Benefits for Survivors
  • Confidentiality
    • Access to Information - Employers
    • Access to Claim File Information
  • Compliance
    • Compliance
  • Occupational Diseases
    • Acute Exposures
    • Chronic Exposures
  • Appendix
    • Appendix

Work Relatedness

  • Definition of an Accident (15-02-01)
  • Accident in the Course of Employment (15-02-02)
  • Pre-existing Conditions (15-02-03)
  • Aggravation Basis (15-02-04)
  • Recurrences (15-02-05)
  • Day of Mourning
  • Contact us
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  • Land acknowledgement
  • Open Data
  • Health and Safety Index
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Fatal or catastrophic injuries
Report online or call us at 1-800-387-0750

Contact us
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© 2023, Workplace Safety and Insurance Board

  • Businesses
    • Registration and coverage
      • Overview
      • Do you need to register with us?
      • Information you need to register your business
      • Employer Classification Manual (ECM)
      • Optional insurance
      • Independent operators
      • Registration FAQs
      • New employers - what you need to know
      • Mandatory coverage in the construction industry
      • Meeting your responsibilities
    • Premiums and payment
      • Overview
      • 2023 Premium Rates
      • Rates from past years
      • How to report and pay your premiums
      • Understanding your rate
      • How to calculate your premium and insurable earnings
      • Premiums and payment FAQs
      • Reconciliation
      • Clearances
      • Business audits
      • Schedule 2
      • Experience rating programs
      • Surplus rebate
    • Account maintenance
      • Overview - Managing your account
      • Account balance and statements
      • Ownership changes
      • Changes to your business
      • Business activity change
      • Buying or selling your business
      • Authorizing a business representative
      • How to communicate with the WSIB by email
      • Closing your account
    • Claims
      • Overview
      • Injury or illness reporting
      • COVID-19 FAQs for business accounts
      • Occupational disease and workplace health hazards
      • Benefits provided to people with claims
      • Administrative Practice Documents
    • Return to work
      • Overview
      • Return-to-work responsibilities
      • Getting help
      • Co-operating in the return-to-work process
      • Return to work and disability resources
      • Service providers
    • Appeals
      • Overview
      • Objecting to a WSIB decision
      • Employer account operations decision
      • Review of claim file
      • Formal appeal
      • Representation
      • Appeal is registered
      • The oral hearing
      • Withdrawals
      • Appeals decision
      • Disagreeing with a decision of the ARO
      • Appeals: Common definitions
    • Small business
      • Overview
      • Benefits and programs
    • Health and safety
      • Overview
      • Health and Safety Excellence program
      • Training
      • Health and safety community
      • Your health and safety rights and responsibilities
      • Safety Check
    • Forms: Businesses
      • Overview
    • Resources
      • Overview
      • Your Guide: Services and Responsibilities – Business Edition
  • Injured or ill people
    • Claims
      • Overview
      • Report an injury or illness
      • Making a claim for occupational disease
      • Making a claim for noise-induced hearing loss
      • Making a claim for COVID-19
      • Make a claim for work-related mental stress
      • Online services for your claim
      • Benefits
      • Occupational disease and survivors benefits program
      • Meeting your responsibilities
      • Administrative Practice Documents
    • Return to work
      • Overview
      • Responsibilities for workers
      • Getting help with work reintegration for workers
      • Co-operating in the return-to-work process
      • Return to work and disability resources
      • Service providers
    • Appeals
      • Overview
      • Objecting to a WSIB decision
      • Employer account operations decision
      • Review of claim file
      • Formal appeal
      • Representation
      • Appeal is registered
      • The oral hearing
      • Withdrawals
      • Appeals decision
      • Disagreeing with a decision of the ARO
    • Health and safety
      • Overview
      • Health and safety community
      • Your health and safety rights and responsibilities
      • Training programs
    • Forms: Injured or ill people
      • Overview
    • Resources for injured or ill people
      • Overview
      • Programs of care
      • Community Mental Health Program
      • Your Guide: Benefits, Services and Responsibilities – Worker Edition
  • Health care providers
    • Provider information
      • Overview
      • Reporting requirements
      • Meeting your responsibilities
    • Provider fees
      • Overview
      • Health practitioner fees
      • Guidelines
    • Preferred suppliers
      • Overview
      • Health care equipment and supplies
      • Information about hearing devices
    • Occupational disease
      • List of occupational diseases adjudicated by WSIB
    • Programs
      • Overview
      • Community Mental Health Program
      • Programs of Care
      • Occupational health assessment program
      • Specialty programs
      • Drug benefit program
      • Serious injury program
    • Forms
      • Overview
    • Resources
      • Overview
      • Health care practitioners & the WSIA
      • Physician learning modules
      • Operational policy manual
  • About us
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  • Contact us