Missouri Revised Statutes Title XXIV. Business and Financial Institutions § 376.821. Insurers may not cancel health or dental insurance solely because the insured is incarcerated--insurer, defined

1. As used in this section, the term “insurer” means any person, reciprocal exchange, interinsurer, Lloyds insurer, fraternal benefit society, and any other legal entity engaged in the business of insurance, including agents, brokers, adjusters and third-party administrators. “Insurer” also includes health services corporations, health maintenance organizations, prepaid limited health care service plans, dental, optometric and other similar health service plans. For purposes of sections 375.930 to 375.948, such entities shall be deemed to be engaged in the business of insurance. “Insurer” shall also include all companies organized, incorporated or doing business under the provisions of chapters 325, 375, 376, 377, 378, 379, 381, and 383.

2. No insurer shall cancel or deny coverage on a contract or policy of health insurance or dental insurance to any person solely on the grounds that the person is incarcerated under authority of law.