But this against the basic coverage rules of PA.
What is the meaning of "Personal Accident" in legal insurance terminology?
Personal Accident is defined as an accident due to external, violent and visible means in legal insurance terminology.

What does 'External' mean with regards to personal accident insurance policies?
With reference to personal accident insurance policies, 'External' is any impact that is outward and on the exterior. Internal impact like diseases and natural causes of sickness or heart attack is not covered under this policy.

What does 'violent' mean with reference to personal accident policies?
The force of the impact that caused injury in relation to the compensation claimed can be termed as 'violent' when referring to personal accident policies

What does 'visible' signify with reference to personal accident policies?
With respect to personal accident policies, 'visible' is denoted by the result of the impact, which caused the injury. The injury must be either physically or clinically visible.

Source - policywala.com