| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 621498 | 621498 | 621498 | Biofeedback centers and clinics, outpatient | |||
| 621498 | 621498 | 621498 | Clinics/centers of health practitioners from more than one industry practicing within the same establishment | |||
| 621498 | 621498 | 621498 | Clinics/centers of health practitioners with multi-industry degrees | |||
| 621498 | 621498 | 621498 | Community health centers and clinics, outpatient | |||
| 621498 | 621498 | 621498 | Freestanding birth centers, outpatient | |||
| 621498 | 621498 | 621498 | Infusion therapy centers and clinics, outpatient | |||
| 621498 | 621498 | 621498 | Pain therapy centers and clinics, outpatient | |||
| 621498 | 621498 | 621498 | Sleep disorder centers and clinics, outpatient |