The worker appealed a decision setting September 20, 2007, as the date of accident for their occupational asthma claim, arguing it should be adjusted to October 26, 2001, when they first sought medical attention for breathing concerns.
The Appeals Resolution Officer found that while the worker experienced symptoms earlier, there was no objective medical evidence or confirmed diagnosis of occupational asthma prior to September 20, 2007, when pulmonary function tests were ordered.
The worker's pre-existing conditions, including a long history of smoking and allergies, complicated the medical continuity.
The appeal was denied, and the date of accident was upheld.