Md. Code, Labor and Employment § 9–655

This Part VIII of this subtitle does not apply to:

(1) a temporary partial disability;

(2) a temporary total disability; or

(3) a disability where the combined effects resulting from a previous impairment that meets the requirements of § 9-802(b)(1) of this title and a subsequent accidental personal injury or occupational disease result in a permanent disability exceeding 50% of the body as a whole.