O36 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Maternal care for other fetal problems.
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The listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy
Labor and delivery complicated by fetal stress (O77.-)
One of the following 7th characters is to be assigned to each code under category O36. 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 O36 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
Maternal care for rhesus isoimmunization
Maternal care for other isoimmunization
Maternal care for hydrops fetalis
Maternal care for intrauterine death
Maternal care for known or suspected poor fetal growth
Maternal care for excessive fetal growth
Maternal care for viable fetus in abdominal pregnancy
Maternal care for other specified fetal problems
Maternal care for fetal problem, unspecified
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