| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 622310 | 622310 | 622310 | Cancer hospitals | |||
| 622310 | 622310 | 622310 | Children's hospitals, specialty (except psychiatric, substance abuse) | |||
| 622310 | 622310 | 622310 | Chronic disease hospitals | |||
| 622310 | 622310 | 622310 | Extended care hospitals (except mental, substance abuse) | |||
| 622310 | 622310 | 622310 | Eye, ear, nose, and throat hospitals | |||
| 622310 | 622310 | 622310 | Hospitals, specialty (except psychiatric, substance abuse) | |||
| 622310 | 622310 | 622310 | Leprosy hospitals | |||
| 622310 | 622310 | 622310 | Maternity hospitals | |||
| 622310 | 622310 | 622310 | Neurological hospitals | |||
| 622310 | 622310 | 622310 | Obstetrical hospital | |||
| 622310 | 622310 | 622310 | Orthopedic hospitals | |||
| 622310 | 622310 | 622310 | Physical rehabilitation hospitals | |||
| 622310 | 622310 | 622310 | Rehabilitation hospitals (except alcoholism, drug addiction) | |||
| 622310 | 622310 | 622310 | Tuberculosis and other respiratory illness hospitals |