Is O41.121 a billable code?
No. O41.121 is a header code that groups 7 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O41.121: Chorioamnionitis, first trimester
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O41.121 groups related diagnoses under chorioamnionitis, first trimester. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O41.121
- O41.1210Chorioamnionitis, first trimester, not applicable or unspecified
- O41.1211Chorioamnionitis, first trimester, fetus 1
- O41.1212Chorioamnionitis, first trimester, fetus 2
- O41.1213Chorioamnionitis, first trimester, fetus 3
- O41.1214Chorioamnionitis, first trimester, fetus 4
- O41.1215Chorioamnionitis, first trimester, fetus 5
- O41.1219Chorioamnionitis, first trimester, other fetus
Other codes in O41.12 Chorioamnionitis
O41.121 questions
What does O41.121 mean?
O41.121 is the ICD-10-CM code for Chorioamnionitis, first trimester. It is in chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.