40 Pa. Stat. § 991.1107
The definition of the term "preexisting condition" under section 1105(c) does not prohibit an insurer from using an application form designed to elicit the complete health history of the applicant and, on the basis of the answers on that application, from underwriting in accordance with that insurer's established underwriting standards. Unless otherwise provided in the policy or certificate, a preexisting condition, regardless of whether it is disclosed on the application, need not be covered until the waiting period described insection 1105(c)(2) expires. No long-term care insurance policy or certificate may exclude or use waivers or riders of any kind to exclude, limit or reduce coverage or benefits for specifically named or described preexisting diseases or physical conditions beyond the waiting period described in section 1105(c)(2).
40 P.S. § 991.1107