This code system http://hl7.org/fhir/ex-revenue-center defines the following codes:

CodeDisplayDefinition
0370AnaesthesiaAnaesthesia.
0420Physical TherapyPhysical Therapy.
0421Physical Therapy - Physical Therapy - visit charge.
0440Speech-Language PathologySpeech-Language Pathology.
0441Speech-Language Pathology - VisitSpeech-Language Pathology- visit charge
0450Emergency RoomEmergency Room
0451Emergency Room - EM/EMTALAEmergency Room - EM/EMTALA
0452Emergency Room - beyond EMTALAEmergency Room - beyond EMTALA
0010Vision ClinicVision Clinic