| O36.5990 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, not applicable or unspecified | BILLABLE CODE |
| O36.5991 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 1 | BILLABLE CODE |
| O36.5992 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 2 | BILLABLE CODE |
| O36.5993 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 3 | BILLABLE CODE |
| O36.5994 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 4 | BILLABLE CODE |
| O36.5995 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 5 | BILLABLE CODE |
| O36.5999 | Maternal care for other known or suspected poor fetal growth, unspecified trimester, other fetus | BILLABLE CODE |
