NAICS Code 622310 — Specialty (except Psychiatric and Substance Abuse) Hospitals

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 62231 (Specialty (except Psychiatric and Substance Abuse) Hospitals).

Code	622310
Title	Specialty (except Psychiatric and Substance Abuse) Hospitals
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	$47 million in average annual receipts

Official definition (2022 NAICS)

This industry comprises establishments known and licensed as specialty hospitals primarily engaged in providing diagnostic and medical treatment to inpatients with a specific type of disease or medical condition (except psychiatric or substance abuse). Hospitals providing long-term care for the chronically ill and hospitals providing rehabilitation, restorative, and adjustive services to physically challenged or disabled people are included in this industry. These establishments maintain inpatient beds and provide patients with food services that meet their nutritional requirements. They have an organized staff of physicians and other medical staff to provide patient care services. These hospitals may provide other services, such as outpatient services, diagnostic X-ray services, clinical laboratory services, operating room services, physical therapy services, educational and vocational services, and psychological and social work services.

Cross-References.

Is a business under 622310 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 622310 qualifies as a small business if it does not exceed $47 million in average annual receipts. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — receipts are averaged over the latest 5 fiscal years.

Where 622310 sits in the hierarchy

Level	Code	Title
Sector	62	Health Care and Social Assistance
Subsector	622	Hospitals
Industry Group	6223	Specialty (except Psychiatric and Substance Abuse) Hospitals
NAICS Industry	62231	Specialty (except Psychiatric and Substance Abuse) Hospitals
National Industry	622310	Specialty (except Psychiatric and Substance Abuse) Hospitals

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
8069	Specialty Hospitals, Except Psychiatric

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.