2022 NAICS national industry in sector 62 Health Care and Social Assistance
621498 All Other Outpatient Care Centers
NAICS 621498 is the US industry code for all other outpatient care centers. This U.S.
- Code
- 621498 (2022 NAICS)
- Title
- All Other Outpatient Care Centers
- Part of
- Other Outpatient Care Centers
- SBA small business limit
- Average annual receipts up to $25.5 million
- Closest UK SIC
- 86900 (details)
Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.
Official definition
This U.S. industry comprises establishments with medical staff primarily engaged in providing general or specialized outpatient care (except family planning centers, outpatient mental health and substance abuse centers, HMO medical centers, kidney dialysis centers, and freestanding ambulatory surgical and emergency centers). Centers or clinics of health practitioners with different degrees from more than one industry practicing within the same establishment (e.g., Doctor of Medicine and Doctor of Dental Medicine) are included in this industry.
Examples Census gives
- Outpatient biofeedback centers and clinics
- Outpatient pain therapy centers and clinics
- Outpatient community health centers and clinics
- Outpatient sleep disorder centers and clinics
When to use a different code
Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:
- Centers and clinics of health practitioners from the same industry primarily engaged in the independent practice of their profession are classified in Industry 62111, Offices of Physicians; Industry 621210, Offices of Dentists; and Industry Group 6213, Offices of Other Health Practitioners.
- Family planning centers are classified in Industry 621410, Family Planning Centers.
- Outpatient mental health and substance abuse centers are classified in Industry 621420, Outpatient Mental Health and Substance Abuse Centers.
- HMO medical centers are classified in U.S. Industry 621491, HMO Medical Centers.
- Dialysis centers are classified in U.S. Industry 621492, Kidney Dialysis Centers.
- Freestanding ambulatory surgical and emergency centers are classified in U.S. Industry 621493, Freestanding Ambulatory Surgical and Emergency Centers.
Activities listed under 621498
The Census index assigns these 8 activities to this code. If your business matches one, this is your code.
- Biofeedback centers and clinics, outpatient
- Clinics/centers of health practitioners from more than one industry practicing within the same establishment
- Clinics/centers of health practitioners with multi-industry degrees
- Community health centers and clinics, outpatient
- Freestanding birth centers, outpatient
- Infusion therapy centers and clinics, outpatient
- Pain therapy centers and clinics, outpatient
- Sleep disorder centers and clinics, outpatient
SBA size standard for 621498
To count as a small business for SBA loans and federal contracts under NAICS 621498, your business (including affiliates) must not exceed $25.5 million in average annual receipts. Check your business.
Source: SBA table of size standards, effective March 17, 2023.
Closest UK SIC 2007 codes
There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 8620, 8690), so treat them as a starting point and check the definition.
Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.
Similar codes to compare
Data last changed November 14, 2026. How this page is built.