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All terms
Shared conceptIncidents and health

Work-related ill health

Any physical or mental health condition that is caused or made worse by work. The scope of what constitutes work-related ill health differs between frameworks but all three impose duties to prevent it.

Also known as

occupational diseasework-related disease

By jurisdiction

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UK HSE

“work-related ill health”Shared

HSWA 1974 section 1 refers to securing the health, safety and welfare of persons at work, including protection against risks to health arising from or in connection with the activities of persons at work. MHSWR 1999 requires risk assessment to cover both safety and health risks. RIDDOR 2013 requires reporting of specific occupational diseases.

StatutoryHealth and Safety at Work etc. Act 1974, sections 1 and 2; MHSWR 1999, regulation 3Source
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Irish HSA

“work-related ill health”Shared

The Safety, Health and Welfare at Work Act 2005 section 8 requires employers to manage risks to health. Work-related ill health is a broad category encompassing occupational disease, work-related stress, musculoskeletal disorders and other conditions caused or worsened by work.

StatutorySafety, Health and Welfare at Work Act 2005, section 8Source
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US OSHA

“occupational illness”Shared

Under 29 CFR 1904.5, a work-related illness is one where an event or exposure at work is a discernible cause or aggravating factor. Occupational illnesses are a recordable category on the OSHA 300 log. The OSH Act section 5(a) requires protection against recognised hazards including health hazards.

Jurisdiction note: OSHA uses occupational illness as the parallel term. Recordability under 29 CFR 1904.5 determines whether a case is captured in OSHA logs.
Regulatory29 CFR 1904.5; OSH Act section 5(a)(1)Source

Practitioner note: Health effects accumulate quietly and surface late. Health surveillance, not accident statistics, is what detects them.

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