What is 'guaranteed renewable' in a health insurance policy?

Guaranteed renewable is a policy provision that obligates the insurer to renew the policy each year if the insured pays the premium, regardless of changes in the insured's health or claims experience. However, the insurer can raise premiums for the entire class of policyholders (not for individuals). Common in individual disability income and long-term care policies. Stronger protection — 'non-cancelable' — means the insurer cannot raise rates either, only renew at the same rate; this is a key feature of premium disability income policies. Weaker protection — 'optionally renewable' — means the insurer can decline to renew at the end of any term. Health insurance under ACA is essentially guaranteed renewable in the individual market regardless of policy language.