| T50.1X6A | Underdosing of loop [high-ceiling] diuretics, initial encounter | BILLABLE CODE |
| T50.1X6D | Underdosing of loop [high-ceiling] diuretics, subsequent encounter | BILLABLE CODE |
| T50.1X6S | Underdosing of loop [high-ceiling] diuretics, sequela | BILLABLE CODE |
