HCPCS Level II code G0559 describes a post-operative follow-up visit complexity service provided by a physician or qualified health care professional who did not perform the original procedure (or is not in the same group) and may be of the same or a different specialty; the service is furnished within the 90-day global period, billed once per 90-day global period in addition to an office/outpatient evaluation and management visit, and includes review of the operative report, targeted research about the procedure and expected post-operative course, a focused physical evaluation of the patient’s recovery, and communication with the operating practitioner when concerns arise. The service type is a post-operative evaluation and management consultative visit and the typical site of service is office or outpatient clinic within the procedural 90-day global period.