Applies from O41 Other disorders of amniotic fluid and membranes
Excludes1 (never code together)
encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
7th character note
One of the following 7th characters is to be assigned to each code under category O41. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O41 that has a 7th character of 1 through 9.
7th character required
0 — not applicable or unspecified
1 — fetus 1
2 — fetus 2
3 — fetus 3
4 — fetus 4
5 — fetus 5
9 — other fetus
Code annotations containing back-references to O41.123
Back-references to O41
Type 1 Excludes: Z03.7 Encounter for suspected maternal and fetal conditions ruled out ("known or suspected fetal anomalies affecting management of mother, not ruled out (O26.-, O35.-, O36.-, O40.-, O41.-)")
Nearby codes
O41.1222 Chorioamnionitis, second trimester, fetus 2
O41.1223 Chorioamnionitis, second trimester, fetus 3
O41.1224 Chorioamnionitis, second trimester, fetus 4
O41.1225 Chorioamnionitis, second trimester, fetus 5
O41.1229 Chorioamnionitis, second trimester, other fetus
O41.123 Chorioamnionitis, third trimester (this code)
O41.1230 Chorioamnionitis, third trimester, not applicable or unspecified
O41.1231 Chorioamnionitis, third trimester, fetus 1
O41.1232 Chorioamnionitis, third trimester, fetus 2
O41.1233 Chorioamnionitis, third trimester, fetus 3
O41.1234 Chorioamnionitis, third trimester, fetus 4