Answer:
Within six months of effective date of coverage.
Step-by-step explanation:
the Medicare supplement Insurance minimum standards- regulation 33 states that the issuer may not apply pre-existing condition limitations for those diseases that are prevalent for more than six months and are covered by the exchanged health policy. Health Insurance Portability and Accountability Act (HIPAA) allows insurers to refuse coverage for 12 months within six months of the pre-existing condition and does not need to add benefits in the given previous plan.