| HHHH | hereditary hemihypotrophy-hemiparesis-hemiathetosis [syndrome] |
|---|---|
| HHRH | hereditary hypophosphatemic rickets with hypercalciuria; hypothalamic hypophysiotropic releasing hor... |
| HHS | [Department of] Health and Human Services; Hearing Handicap Scale; hereditary hemolytic syndrome; hu... |
| HHT | head halter traction; hereditary hemorrhagic telangiectasia; heterotopic heart transplantation; homo... |
| HMN | hereditary motor neuropathy |