2017 NAICS Definition

T = Canadian, Mexican, and United States industries are comparable.

621493 Freestanding Ambulatory Surgical and Emergency Centers

This U.S. industry comprises establishments with physicians and other medical staff primarily engaged in (1) providing surgical services (e.g., orthoscopic and cataract surgery) on an outpatient basis or (2) providing emergency care services (e.g., setting broken bones, treating lacerations, or tending to patients suffering injuries as a result of accidents, trauma, or medical conditions necessitating immediate medical care) on an outpatient basis. Outpatient surgical establishments have specialized facilities, such as operating and recovery rooms, and specialized equipment, such as anesthetic or X-ray equipment.

Illustrative Examples:

Freestanding ambulatory surgical centers and clinics
Freestanding trauma centers (except hospitals)
Freestanding emergency medical centers and clinics
Urgent medical care centers and clinics (except hospitals)


Cross-References.

• Physician walk-in centers are classified in U.S. Industry 621111, Offices of Physicians (except Mental Health Specialists); and
• Establishments known and licensed as hospitals that also perform ambulatory surgery and emergency room services are classified in Subsector 622, Hospitals.

2007 NAICS		2012 NAICS		2017 NAICS		Corresponding Index Entries
621493		621493		621493		Ambulatory surgical centers and clinics, freestanding
621493		621493		621493		Emergency medical centers and clinics, freestanding
621493		621493		621493		Freestanding ambulatory surgical centers and clinics
621493		621493		621493		Freestanding emergency medical centers and clinics
621493		621493		621493		Laser surgery centers, freestanding
621493		621493		621493		Trauma centers (except hospitals), freestanding
621493		621493		621493		Urgent medical care centers and clinics (except hospitals), freestanding