| HSAN | hereditary sensory and autonomic neuropathy |
|---|---|
| HSN | hereditary sensory neuropathy; hospital satellite network |
| HSSCC | hereditary site-specific colon cancer |
| HT | Hashimoto thyroiditis; hearing test; hearing threshold; heart; heart transplantation, heart transpla... |
| LHON | Leber hereditary optic neuropathy |