2022 NAICS national industry in sector 62 Health Care and Social Assistance
621492 Kidney Dialysis Centers
NAICS 621492 is the US industry code for kidney dialysis centers. This U.S.
- Code
- 621492 (2022 NAICS)
- Title
- Kidney Dialysis Centers
- Part of
- Other Outpatient Care Centers
- SBA small business limit
- Average annual receipts up to $47 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 outpatient kidney or renal dialysis services.
Activities listed under 621492
The Census index assigns these 4 activities to this code. If your business matches one, this is your code.
- Dialysis centers and clinics
- Hemodialysis centers and clinics
- Kidney dialysis centers and clinics
- Renal dialysis centers and clinics
SBA size standard for 621492
To count as a small business for SBA loans and federal contracts under NAICS 621492, your business (including affiliates) must not exceed $47 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: 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.