O36.8320 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, not applicable or unspecified | BILLABLE CODE |
O36.8321 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, fetus 1 | BILLABLE CODE |
O36.8322 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, fetus 2 | BILLABLE CODE |
O36.8323 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, fetus 3 | BILLABLE CODE |
O36.8324 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, fetus 4 | BILLABLE CODE |
O36.8325 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, fetus 5 | BILLABLE CODE |
O36.8329 | Maternal care for abnormalities of the fetal heart rate or rhythm, second trimester, other fetus | BILLABLE CODE |