| O36.22X0 | Maternal care for hydrops fetalis, second trimester, not applicable or unspecified | BILLABLE CODE |
| O36.22X1 | Maternal care for hydrops fetalis, second trimester, fetus 1 | BILLABLE CODE |
| O36.22X2 | Maternal care for hydrops fetalis, second trimester, fetus 2 | BILLABLE CODE |
| O36.22X3 | Maternal care for hydrops fetalis, second trimester, fetus 3 | BILLABLE CODE |
| O36.22X4 | Maternal care for hydrops fetalis, second trimester, fetus 4 | BILLABLE CODE |
| O36.22X5 | Maternal care for hydrops fetalis, second trimester, fetus 5 | BILLABLE CODE |
| O36.22X9 | Maternal care for hydrops fetalis, second trimester, other fetus | BILLABLE CODE |
