Occupational diseases are those diseases which are sustained by the worker during the course of their work. Schedule III of the Workmen Compensation Act provides the list of occupational diseases. This schedule is divided into three parts, the diseases in Part A & B are excluded from coverage.

Workmen compensation insurance companies also offer an add-on coverage for compressed air disease and Part C diseases in the schedule of WC act.

Here is the Part C of Schedule III of WC Act covered under workmen compensation insurance:

Part A

  1. Diseases which are Infectious and parasitic, contracted in an occupation where there is a contamination risk
  2. Diseases caused by work in compressed air
  3. Diseases caused by lead or its toxic compounds
  4. Poisoning by nitrous fumes
  5. Poisoning by organophosphorus compounds

Part B

  1. Diseases caused by:
    • Phosphorus or its toxic compounds
    • Mercury or its toxic compounds
    • Benzene or its toxic homologues
    • Nitro and amino toxic derivatives of benzine or its homologues
    • Chromium, or its toxic compounds
    • Arsenic or its toxic compounds
    • Radioactive substances or radiations
    • Carbon disulphide
    • Beryllium or its toxic compounds
    • Cadmium or its toxic compounds
    • Fluorine or its toxic compounds
    • Nitroglycerine or other nitric acid esters
    • Alcohols and ketones
    • Asphyxiants carbon monoxide, its toxic derivatives and  hydrogen sulfide
  2. Primary epitheliomatous cancer of the skin which may be caused by tar, pitch, bitumen, mineral oil, anthracene, or the compound products and residues of these substances
  3. Disease caused by the toxic halogen derivatives of hydrocarbons (of the aliphatic and aromatic series)
  4. Occupational cataract due to infra-red radiations manganese or its toxic compounds
  5. Skin diseases caused by physical, chemical or biological agents 
  6. Hearing impairment caused by noise
  7. Poisoning by dinitrophenol or a homologue or by substituted dinitrophenol or by the salts of such substances
  8. Occupational asthma caused by recognized sensitizing agents inherent to the work process
  9. Lung cancer and mesotheliomas caused by asbestos
  10. Primary neoplasm of the epithelial lining of the urinary bladder or the kidney or the ureter
  11. Snow blindness in snow bound areas
  12. Disease due to effect of cold in extreme cold climate

Part C Diseases

  1. Pneumoconiosis caused by sclerogenic mineral dust (silicosis, anthracosilicosis, asbestosis) and silico-tuberculosis if silicosis is an essential factor in causing the resultant incapacity or death
  2. Bagassosis
  3. Bronchopulmonary diseases caused by cotton, flax hemp and sisal dust (Byssinosis)
  4. Extrinsic allergic alveolitis caused by the inhalation of organic dust
  5. Bronchopulmonary diseases caused by hard metals
  6. Acute Pulmonary Oedema of High Altitude

Case Study

KLMI Consultant had recently relocated its office to a new location. The new place had large bay areas, and the new wallpaper was placed, the area was painted, and new carpet was also laid. Now employees worked in cubicles. However, within a month of shifting, one of its employees, Rahul Sharma complained of skin allergy.

At the new workplace, Rahul’s cubicle was situated in an interior with no windows. A photocopy machine was adjacent to his cubicle. Since his shifting, he was complaining of unpleasant odors, a feeling of excessive tiredness and mild irritation in eyes, nose, and throat. Also, some paint boxes were kept at the office which were still not removed. He complained about the increasing noise and distraction in the new workplace.

The rashes which started a week ago with itching and redness now turned into vesicular lesions and spread from the initial location of the hand to the volar surfaces of the wrists. Due to his allergic condition, Rahul had to visit a doctor who advised him to avoid going out. As Rahul had to incur expenses on visiting the doctor and medicines, he approached his employer for the compensation. 

KLMI consultant had covered all its employees under WC insurance policy. Considering Rahul’s case as an occupational disease case, the employer approached the workmen compensation insurance company for covering its legal liability and paid compensation to Rahul.

After scrutinizing all the documents submitted by Rahul, the insurer considered it as an occupational ailment and agreed to settle the claim. The insurer also covered medical expenses incurred by Rahul on his treatment.