O41.1232
Chorioamnionitis, third trimester, fetus 2
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 6 never code together
O00-O9Achapter
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 7
0 not applicable or unspecified
1 fetus 1
2 fetus 2 this code
3 fetus 3
4 fetus 4
5 fetus 5
9 other fetus
Instructional notes 7
O00-O9Achapter
Notes
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Use additional code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.Z3A
Index entries leading here 4
Alongside this code 6 same parent — O41.123
O41.1230 Chorioamnionitis, third trimester, not applicable or unsp O41.1231 Chorioamnionitis, third trimester, fetus 1 O41.1233 Chorioamnionitis, third trimester, fetus 3 O41.1234 Chorioamnionitis, third trimester, fetus 4 O41.1235 Chorioamnionitis, third trimester, fetus 5 O41.1239 Chorioamnionitis, third trimester, other fetus
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.