When would an occupational injury not considered a worksman compensation injury?

Decision by insurer. The treating doctor will give his medical opinion on whether he determines the injury to be connected to the workplace. Then the insurer will make a determination on whether the injury will be covered by the work comp policy. If there are disagreements it is taken to the court system.
Failure to Report. Occupational injury by definition would also be a work comp injury. The only time this would be a problem is if the patient failed to report it in a timely fashion and can not prove that the injury was acquired on the job. This is why all injuries should be reported immediately in order to take advantage of your rights.

Related Questions

Can you tell me what is an occupational incident vs an occupational injury?

One leads to other. An occupational injury occurs as a consequence of an activity or exposure in the workplace. An incident is an occurrence but it doesn't necessarily lead to an injury. Still there has to be an incident before there can be an injury. Read more...

Is there a correlation between seasonal affective disorders (sad) and occupational injuries?

No and Yes. Used to be this case in medical field now we work as a team and cross check each other, have quality management people who review internally we have external audits, computers with smart alerts so it is a lot better. So technically answer is no. But as a spirit if we are functioning without awareness without intension can cause harm. Medicine is team work thank god for that. Read more...
Any depression. Or anxiety could increase risk of occupational injury by effecting concentration, alertness, fatigue, decision making, etc. Much would depend on the severity of the sad and the skills required by the occupation. Read more...
Not directly. Since sad has an impact on a person's level of functioning it is reasonable to assume that other aspects of life would be affected. But there isn't any direct relationship to injuries. Read more...

Can you tell me if there are any studies on seasonal affective disorders (sad) related to occupational injuries?

I have not seen. Any, the disorder seems to be caused by a lack of natural sunlight not injuries. Read more...
Not occupational. SAD is something that results from nutritional and hormone deficiencies. There isn't any established connection to occupational exposures. If you are dealing with SAD you need to look at ultraviolet light therapy, vitamin D supplements, and a real food diet. . Read more...