ICD-10 CM Code O41.123
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O41 Other disorders of amniotic fluid and membranes
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O41.1 Infection of amniotic sac and membranes
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O41.12 Chorioamnionitis
O41.123
Chorioamnionitis, third trimester
Excludes Type 1
- encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
7th Character
- 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.
- 0 - not applicable or unspecified
- 1 - fetus 1
- 2 - fetus 2
- 3 - fetus 3
- 4 - fetus 4
- 5 - fetus 5
- 9 - other fetus
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