| Value | Code Name | Code | Code System | Code Description |
|---|---|---|---|---|
| Central alpha agonists (clonidine) | Central alpha agonists (clonidine) | Central alpha agonists (clonidine) | ||
| Alpha-blockers (prazosin, terazosin) | Alpha-blockers (prazosin, terazosin) | Alpha-blockers (prazosin, terazosin) | ||
| Vasodilator: minoxidil | Vasodilator: minoxidil | Vasodilator: minoxidil | ||
| Vasodilator: hydralazine | Vasodilator: hydralazine | Vasodilator: hydralazine | ||
| Other antihypertensive, specify | Other antihypertensive, specify | Other antihypertensive, specify |