| HHSSA | Home Health Services and Staffing Association |
|---|---|
| HRS | Hamilton Rating Scale; Hamman-Rich syndrome; health and rehabilitative services; hepatorenal syndrom... |
| HRSA | Health Resources and Services Administration |
| HSA | Hazardous Substances Act; Health Services Administration; health systems agency; hereditary siderobl... |
| HSDO | health services delivery organization |