What type of rider would an insurer use to limit or exclude coverage for an applicant's health condition?

The correct choice is the impairment rider. This type of rider is specifically designed to exclude coverage for certain pre-existing health conditions that an applicant may possess at the time of application. By attaching an impairment rider to the policy, the insurer can limit their risk regarding the applicant's specific health issues, offering coverage that does not include those excluded conditions. This helps protect the insurer from potential financial loss while still providing coverage for other aspects of the applicant's health.

The accidental death rider typically provides additional benefits if the insured dies from an accident, which does not relate to limiting or excluding health conditions. The waiver of premium rider allows insured individuals to skip premium payments under certain conditions, such as disability, and does not exclude or limit health coverage. The accelerated death benefit rider permits the insured to receive a portion of the death benefit while still alive in the event of a terminal illness, which also does not serve the purpose of limiting coverage for health conditions.