Section 215 ILCS 5/368g - Time-based billing(a) As used in this Section, "CPT code" means the medical billing code set contained in the most recent version of the Current Procedural Terminology code book published by the American Medical Association.(b) A health care plan requiring a health care provider to use a time-based CPT code to bill for health care services shall not apply a time measurement standard that results in fewer units billed than allowed by the CPT code book, except as required by federal law for federally funded patients.Amended by P.A. 102-0558,§ 490, eff. 8/20/2021.Added by P.A. 101-0119,§ 5, eff. 7/22/2019.