O41.129 Chorioamnionitis, unspecified trimester

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Chorioamnionitis, unspecified trimester is O41.129 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
O30-O48: Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
Category O41
33 codes (24 billable)
FY2026 Status
Stable since FY2024

References

Related Codes

Parent Code

O41 Other disorders of amniotic fluid and membranes

Related Codes in O41

O41 Other disorders of amniotic fluid and membranes O41.0 Oligohydramnios O41.00 Oligohydramnios, unspecified trimester O41.01 Oligohydramnios, first trimester O41.02 Oligohydramnios, second trimester O41.03 Oligohydramnios, third trimester O41.1 Infection of amniotic sac and membranes O41.10 Infection of amniotic sac and membranes, unspecified O41.101 Infection of amniotic sac and membranes, unspecified, first trimester O41.102 Infection of amniotic sac and membranes, unspecified, second trimester O41.103 Infection of amniotic sac and membranes, unspecified, third trimester O41.109 Infection of amniotic sac and membranes, unspecified, unspecified trimester O41.12 Chorioamnionitis O41.121 Chorioamnionitis, first trimester O41.122 Chorioamnionitis, second trimester O41.123 Chorioamnionitis, third trimester O41.14 Placentitis O41.141 Placentitis, first trimester O41.142 Placentitis, second trimester O41.143 Placentitis, third trimester
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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