Maryland Code, Health-General § 19-355

(a) In this section, “gender identity” and “sexual orientation” have the meanings stated in § 20-101 of the State Government Article.

(b) This section does not prohibit a hospital or related institution that is licensed or otherwise regulated by the Department or a unit of the Department from refusing, withholding from, or denying any person services for failure to conform to the usual and regular requirements, standards, and regulations imposed by the licensed or regulated hospital or related institution, unless the refusal, withholding, or denial is based on discrimination on the grounds of race, color, religion, sex, age, national origin, marital status, sexual orientation, gender identity, or disability.

(c) A hospital or related institution may not discriminate against any individual with respect to the individual's medical care because of the race, color, religion, sex, age, national origin, marital status, sexual orientation, gender identity, or disability of the individual.

(d) The Commission on Civil Rights shall enforce this section as provided in Title 20 of the State Government Article.