Absolutely. Both the employer or the insurance company can deny a claim for a number of reasons. Some of the common reasons for a refusal are:
The accident didn’t happen during working hours.
The employee did not receive medical attention.
There was a pre-existing condition that caused the injury.
The employee was irresponsible at the time of the accident.
There are a lot of reasons why a claim might be disputed. If you feel that your claim was wrongfully denied, call a lawyer.