W. Va. Code § 33-20D-2: Definitions.

As used in this article:

(a) "Tail insurance" means insurance which covers a professional insured once a claims made malpractice insurance policy is cancelled, not renewed or terminated and covers claims made after such cancellation or termination for acts occurring during the period the prior malpractice insurance was in effect.

(b) "Claims made malpractice insurance policy" means a policy which covers claims which are reported during the policy period, meet the provisions specified by the policy, and are for an incident which occurred during the policy period, or occurred prior to the policy period, as is specified by the policy.