| O3481 | Maternal care for other abnormalities of pelvic organs, first trimester |
| O3482 | Maternal care for other abnormalities of pelvic organs, second trimester |
| O3483 | Maternal care for other abnormalities of pelvic organs, third trimester |
| O349 | Maternal care for abnormality of pelvic organ, unspecified |
| O3490 | Maternal care for abnormality of pelvic organ, unspecified, unspecified trimester |
| O3491 | Maternal care for abnormality of pelvic organ, unspecified, first trimester |
| O3492 | Maternal care for abnormality of pelvic organ, unspecified, second trimester |
| O3493 | Maternal care for abnormality of pelvic organ, unspecified, third trimester |
| O35 | Maternal care for known or suspected fetal abnormality and damage |
| O350 | Maternal care for (suspected) central nervous system malformation in fetus |
| O3500 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified |
| O3500X0 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, not applicable or unspecified |
| O3500X1 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 1 |
| O3500X2 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 2 |
| O3500X3 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 3 |
| O3500X4 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 4 |
| O3500X5 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 5 |
| O3500X9 | Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, other fetus |
| O3501 | Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum |
| O3501X0 | Mat care cnsl malf/damag fts, agenesis corpus callosum, unsp Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, not applicable or unspecified |
| O3501X1 | Mat care cnsl malf/damag fts, agenesis corpus callosum, fts1 Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 1 |
| O3501X2 | Mat care cnsl malf/damag fts, agenesis corpus callosum, fts2 Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 2 |
| O3501X3 | Mat care cnsl malf/damag fts, agenesis corpus callosum, fts3 Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 3 |
| O3501X4 | Mat care cnsl malf/damag fts, agenesis corpus callosum, fts4 Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 4 |
| O3501X5 | Mat care cnsl malf/damag fts, agenesis corpus callosum, fts5 Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 5 |
| O3501X9 | Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, other fetus |
| O3502 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly |
| O3502X0 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, not applicable or unspecified |
| O3502X1 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, fetus 1 |
| O3502X2 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, fetus 2 |
| O3502X3 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, fetus 3 |
| O3502X4 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, fetus 4 |
| O3502X5 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, fetus 5 |
| O3502X9 | Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, other fetus |
| O3503 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts |
| O3503X0 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, not applicable or unspecified |
| O3503X1 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, fetus 1 |
| O3503X2 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, fetus 2 |
| O3503X3 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, fetus 3 |
| O3503X4 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, fetus 4 |
| O3503X5 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, fetus 5 |
| O3503X9 | Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts, other fetus |
| O3504 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele |
| O3504X0 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, not applicable or unspecified |
| O3504X1 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, fetus 1 |
| O3504X2 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, fetus 2 |
| O3504X3 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, fetus 3 |
| O3504X4 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, fetus 4 |
| O3504X5 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, fetus 5 |
| O3504X9 | Maternal care for (suspected) central nervous system malformation or damage in fetus, encephalocele, other fetus |