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ICD-10-CM · FY 2026 APRIL UPDATE

O41.1

Infection of amniotic sac and membranes

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
O41.10Infection of amniotic sac and membranes, unspecifiedCategory
O41.101Infection of amniotic sac and membranes, unspecified, first trimesterCategory
O41.1010Infection of amniotic sac and membranes, unspecified, first trimester, not applicable or unspecifiedBillable
O41.1011Infection of amniotic sac and membranes, unspecified, first trimester, fetus 1Billable
O41.1012Infection of amniotic sac and membranes, unspecified, first trimester, fetus 2Billable
O41.1013Infection of amniotic sac and membranes, unspecified, first trimester, fetus 3Billable
O41.1014Infection of amniotic sac and membranes, unspecified, first trimester, fetus 4Billable
O41.1015Infection of amniotic sac and membranes, unspecified, first trimester, fetus 5Billable
O41.1019Infection of amniotic sac and membranes, unspecified, first trimester, other fetusBillable
O41.102Infection of amniotic sac and membranes, unspecified, second trimesterCategory
O41.1020Infection of amniotic sac and membranes, unspecified, second trimester, not applicable or unspecifiedBillable
O41.1021Infection of amniotic sac and membranes, unspecified, second trimester, fetus 1Billable
O41.1022Infection of amniotic sac and membranes, unspecified, second trimester, fetus 2Billable
O41.1023Infection of amniotic sac and membranes, unspecified, second trimester, fetus 3Billable
O41.1024Infection of amniotic sac and membranes, unspecified, second trimester, fetus 4Billable
O41.1025Infection of amniotic sac and membranes, unspecified, second trimester, fetus 5Billable
O41.1029Infection of amniotic sac and membranes, unspecified, second trimester, other fetusBillable
O41.103Infection of amniotic sac and membranes, unspecified, third trimesterCategory
O41.1030Infection of amniotic sac and membranes, unspecified, third trimester, not applicable or unspecifiedBillable
O41.1031Infection of amniotic sac and membranes, unspecified, third trimester, fetus 1Billable
O41.1032Infection of amniotic sac and membranes, unspecified, third trimester, fetus 2Billable
O41.1033Infection of amniotic sac and membranes, unspecified, third trimester, fetus 3Billable
O41.1034Infection of amniotic sac and membranes, unspecified, third trimester, fetus 4Billable
O41.1035Infection of amniotic sac and membranes, unspecified, third trimester, fetus 5Billable
O41.1039Infection of amniotic sac and membranes, unspecified, third trimester, other fetusBillable
O41.109Infection of amniotic sac and membranes, unspecified, unspecified trimesterCategory
O41.1090Infection of amniotic sac and membranes, unspecified, unspecified trimester, not applicable or unspecifiedBillable
O41.1091Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 1Billable
O41.1092Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 2Billable
O41.1093Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 3Billable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.