55 Pa. Code § 1126.2
The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
ASC-Ambulatory surgical center-A facility licensed by the Department of Health which provides outpatient surgical treatment. The term does not include individual or group practice offices of private physicians or dentists, unless the offices have a distinct part used solely for outpatient surgical treatment on a regular and organized basis.
SPU-Short procedure unit-A unit of a hospital organized for the delivery of ambulatory surgical, diagnostic or medical services.
Same day surgical services-Specified surgical, diagnostic and medical treatment provided to patients who do not require hospitalization, but who require constant medical supervision for a limited amount of time following the procedure performed.
55 Pa. Code § 1126.2