Md. Code, Correctional Services § 2–118

(a) This section applies to incarcerated individuals in a State correctional facility.

(b) (1) Except as provided in paragraph (2) of this subsection, the Secretary shall assess a reasonable fee not to exceed $4 for each visit by an incarcerated individual to a medical unit, physician, dentist, or optometrist for health care services.

(2) The Secretary may not assess a fee for health care services that are:

(i) required as a part of the intake process;

(ii) required for an initial physical examination;

(iii) due to a referral by a nurse or physician’s assistant;

(iv) provided during a follow–up visit that is initiated by a medical professional from the correctional facility;

(v) required for necessary treatment; or

(vi) initiated by a medical or mental health staff member of the correctional facility.

(c) The Secretary shall adopt regulations to implement and collect the fees required by this section.