NAICS Code 621330 — Offices of Mental Health Practitioners (except Physicians)

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 62133 (Offices of Mental Health Practitioners (except Physicians)).

Code	621330
Title	Offices of Mental Health Practitioners (except Physicians)
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	$9 million in average annual receipts

Official definition (2022 NAICS)

This industry comprises establishments of independent mental health practitioners (except physicians) primarily engaged in (1) the diagnosis and treatment of mental, emotional, and behavioral disorders and/or (2) the diagnosis and treatment of individual or group social dysfunction brought about by such causes as mental illness, alcohol and substance abuse, physical and emotional trauma, or stress. These practitioners operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers.

Cross-References.

Is a business under 621330 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 621330 qualifies as a small business if it does not exceed $9 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 621330 sits in the hierarchy

Level	Code	Title
Sector	62	Health Care and Social Assistance
Subsector	621	Ambulatory Health Care Services
Industry Group	6213	Offices of Other Health Practitioners
NAICS Industry	62133	Offices of Mental Health Practitioners (except Physicians)
National Industry	621330	Offices of Mental Health Practitioners (except Physicians)

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
8049	Offices and Clinics of Health Practitioners, Not Elsewhere Classified

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.