Texas Insurance Code - INS § 1364.053. Prohibition

(a) Except as provided by Subsection (b), an insurer may not cancel during the term of a group health insurance policy or contract an individual's coverage provided by the policy or contract because the individual:

(b) The insurer may cancel the coverage provided by the policy or contract for fraud or misrepresentation in the obtaining of coverage by failure to disclose a diagnosis of AIDS or an HIV-related condition.