Definition of Diagnostic Services

90.5 - Definition of Diagnostic Services (Rev. 1, 10-01-03) HO-350.E A service is “diagnostic” if it is an examination or procedure to which the patient is subjected, or which is performed on materials derived from a hospital outpatient to obtain information to aid in the assessment of a medical condition or the identification of a disease. Among these examinations and tests are diagnostic laboratory services such as hematology and chemistry, diagnostic x-rays, isotope studies, EKGs, pulmonary function tests, psychological tests, and other tests given to determine the nature and severity of an ailment or injury. Hospitals may determine whether services are diagnostic from their internal systems as appropriate.