Medical adjudication

Consulting services

What is meant by medical adjudication?

This refers to circumstances where an employee with health issues requires important decisions (“judgements”) to be made, impacting their work.

Three scenarios that may warrant the opinion of an occupational medicine specialist include:

  • Complex cases of medical fitness to work (eg a vocational driver with a complex neurological disorder)
  • Complex cases of possible occupational disease (eg a worker with a possible allergy to a biological agent, or cases of possible occupational cancer)
  • Complex cases of incapacity/disability (eg where there are disputes about the medical evidence or the process followed)

What is meant by medical fitness to work?

An employee is medically fit to work when the employee has no physical or mental impairments that adversely impact the employee’s ability to perform the inherent task requirements of the job safely, and to the required standard, within the working conditions associated with the job.

See illustrative image below:

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What is meant by occupational disease?

An occupational disease is an impairment of the normal structure or function of a body part or system that is manifested by symptoms and/or signs, and which is attributed to (caused by) exposure to a workplace hazard, either entirely or in part.

Since the COIDA amendments took effect on 23 January 2026, post-traumatic stress disorder (PTSD) has been expressly recognised as an occupational disease.

These causal links may be:

  • Contributory (eg COAD: Smoking + dust)
  • Aggravation of a pre-existing disorder (eg asthma or eczema).

To determine the presence of an occupational disease, consider: (this step is called case investigation and is conducted by the OH team)

  • Is there exposure to a known cause of the illness (Hazard x Exposure = Risk)?
  • Is the timing + disease onset appropriate?
  • Is there an improvement on removal from exposure?
  • Have you excluded known non-occupational causes of the illness?

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If a clinical diagnosis of an occupational disease is made, the following must happen:

Investigation

The employer must initiate an incident investigation, the purpose being to determine the root cause for the incident, so as to implement corrective actions (a legal requirement)!

If the incident investigation confirms the presence of an occupational disease, line management shall seek ways to reduce the exposures by implementing the hierarchy of controls, as applicable – namely:

  • Hazard substitution or elimination
  • Engineering Solutions (isolation & ventilation)
  • Administrative Solutions (job rotation, safe work procedures, hazard communication, etc.)
  • Training and education
  • Personal Protective Equipment

OHN shall initiate measures to identify employees from similar exposure profiles that may also have acquired the occupational disease.

Communication

The medical team shall communicate the results of the medical screen to:

  • The affected employee (feedback form)
  • The employer (certificate of fitness)
  • The Department of Employment and Labour (Annexure 1 of the General Administrative Regulations)

All three of these are required by law (sections 24 and 25 of the OHS Act, and regulation 8(4) of the General Administrative Regulations).

Compensation

If a compensable disease is diagnosed, the OHN & OMP shall complete the forms required for submission to the Compensation Commissioner. These include the following basic set (others are applicable depending upon the circumstances):

  • The attending doctor completes WCL 22, 26, and parts of WCL 14.
  • The employer completes WCL 1, and parts of WCL 14.

The OHN shall coordinate the submission of these forms to the COID offices.

Under the amended COIDA, notifications and claims go to the Compensation Commissioner, and the period for lodging a claim is now three years (previously 12 months). Late reporting now attracts administrative penalties, so timely submission matters.

Re-Integration

The OMP shall conduct a “return to work assessment” on the affected employee before their return to work. This is done cognisant of the requirements of the job to which the employee is returning, ensuring they are fit for duty, thereby not endangering their own or others’ health and safety.

The amended COIDA now makes rehabilitation and return to work a statutory obligation (Chapter VIIA), supported by new regulations on return-to-work and rehabilitation programmes. Employers need a documented process, not an informal one.

Note:

This step ends with a return to work fitness assessment, to ensure that the employee with an occupational disease is suitable to return to their previous job.

Employee care:

  • If necessary, remove employee from ongoing exposure
  • If necessary, provide necessary medical therapy and rehabilitation
  • Establish a follow-up schedule to monitor the employee’s progress into the future

Occupational disease reporting:

  • Should an employee be found to be suffering from an occupational disease, (or even suspected of suffering from an occupational disease), it is required that the attending practitioner (nurse or doctor) notify the employee directly, the employer and the Department of Employment and Labour (as prescribed by Section 25 in the Occupational Health and Safety Act).
  • This should be done regardless of whether or not the case is deemed to be compensable.

The diagram below summarises the legal triggers for action and reporting for the most common occupational disease, noise-induced hearing loss, updated for the Noise Exposure Regulations, 2024 and SANS 10083:2023.

OHS Act s24* & s25Prevention · 1993
  • Action based on the diagnosis of (or suspicion of) an occupational disease
  • Report to the Chief Inspector, with details as set out in GAR 8(4)
General Administrative Regulations 8(1)(b)* & 8(4)Prevention · 2003
  • Action based on the diagnosis of an occupational disease as contemplated in sections 24 and 25 of the OHS Act
  • Report to the Chief Inspector within 14 days of diagnosis
COIDA Instruction 171Compensation · November 2001
  • The presence of “disablement”, determined by PLH calculated from losses at 0.5, 1, 2, 3 and 4 kHz
  • Action based on a PLH shift >10% from baseline
Noise Exposure Regulations (Code of Practice 13.3 & 13.4)Prevention · 2024
  • STS >25 from audiometric zero
  • PLH shift >10% from baseline (submit a compensation claim)
  • Employer or OMP reports to the Chief Inspector
SANS 10083:2023Prevention & compensation · 2023
  • Referral threshold shift (0.5–8 kHz, >15 dB vs the most recent test) → intervention (cl. 18.5)
  • PLH shift >10% from baseline → retest and diagnostic referral (cl. 18.6)
Mine Health and Safety ActPrevention · 1996
  • Action based on a PLH shift of ≥5%
  • Action based on standard threshold shifts (STS) at 2, 3 and 4 kHz against audiometric zero (milestone baseline)

* Section 24 places an additional duty on the employer to report an occupational disease if the employee “becomes ill to such a degree that he or she is likely either to die or to suffer a permanent physical defect”, and to notify the Provincial Director forthwith.

The Noise Exposure Regulations, 2024 replaced the Noise-Induced Hearing Loss Regulations, 2003 on 6 September 2026. Read more in my article: The Grace Period Is Over: what the Physical Agents and Noise Exposure Regulations mean for SA employers.

How I can help with medical adjudication

I provide independent specialist opinions on complex cases of fitness to work, possible occupational disease, and incapacity or disability, including cases where the medical evidence or the process followed is disputed. I review the records against the inherent requirements of the job, assess the employee where needed, and give a clear, reasoned report that employers, employees, treating doctors and, where necessary, the Compensation Fund or an arbitration can rely on.