Is it legal for an employer to stop paying health insurance if you are out of work on Workers Compensation?

Employer is located in NY, Injury occured while at work doing normal daily job, have been out of work since end of August, awaiting workers comp approval for surgery
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Since the employee continues on the rolls of the organization and his lien over the job subsists even when he is on leave on account of injury ,the employer cannot stop payment to health insurance
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