2022 NAICS national industry in sector 62 Health Care and Social Assistance
621310 Offices of Chiropractors
NAICS 621310 is the US industry code for offices of chiropractors. It covers establishments of health practitioners having the degree of D.C.
- Code
- 621310 (2022 NAICS)
- Title
- Offices of Chiropractors
- Part of
- Offices of Other Health Practitioners
- SBA small business limit
- Average annual receipts up to $9 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 industry comprises establishments of health practitioners having the degree of D.C. (Doctor of Chiropractic) primarily engaged in the independent practice of chiropractic. These practitioners provide diagnostic and therapeutic treatment of neuromusculoskeletal and related disorders through the manipulation and adjustment of the spinal column and extremities, and 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.
Businesses that use this code
Activities listed under 621310
The Census index assigns these 3 activities to this code. If your business matches one, this is your code.
- Chiropractors' offices (e.g., centers, clinics)
- DCs' (doctors of chiropractic) offices (e.g., centers, clinics)
- Doctors of chiropractic (DCs) offices (e.g., centers, clinics)
SBA size standard for 621310
To count as a small business for SBA loans and federal contracts under NAICS 621310, your business (including affiliates) must not exceed $9 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.