Urgent care clinics cater to the immediate medical needs of unscheduled, ambulatory patients experiencing acute or episodic illnesses or injuries. Distinct from hospital emergency rooms, provider offices, or clinics, Urgent Care Centers employ Evaluation and Management (E/M) codes, distinguishing between New Patient and Established Patient encounters. Effective June 1, 2022, services provided in Urgent Care Centers must be billed with POS 20 and Office Visit E/M codes, adhering to American Medical Association (AMA) guidelines. Additional services provided during the visit should be billed separately if distinct from the E/M service.