O46.91 is the authoritative medical code for Antepartum hemorrhage, unspecified, first trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for antepartum hemorrhage, unspecified, first trimester (ICD-10-CM O46.91), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Antepartum hemorrhage, unspecified, first trimester is a billable ICD-10-CM diagnosis code O46.91. Excludes1 (not coded here): hemorrhage in early pregnancy O20.-; intrapartum hemorrhage NEC O67.-; placenta previa O44.-; premature separation of placenta abruptio placentae.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for O46.91 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- hemorrhage in early pregnancy O20.-
- intrapartum hemorrhage NEC O67.-
- placenta previa O44.-
- premature separation of placenta abruptio placentae
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with O46.91?
Per official ICD-10-CM Excludes1 instructions, O46.91 must not be reported together with: hemorrhage in early pregnancy (O20.-); intrapartum hemorrhage NEC (O67.-); placenta previa (O44.-); premature separation of placenta [abruptio placentae] (O45.-).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to O46.91 in its code family, with their registry titles.
- O46 — Antepartum hemorrhage, not elsewhere classified
- O46.0 — Antepartum hemorrhage with coagulation defect
- O46.00 — Antepartum hemorrhage with coagulation defect, unspecified
- O46.001 — Antepartum hemorrhage with coagulation defect, unspecified, first trimester
- O46.002 — Antepartum hemorrhage with coagulation defect, unspecified, second trimester
- O46.003 — Antepartum hemorrhage with coagulation defect, unspecified, third trimester
- O46.009 — Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester
- O46.01 — Antepartum hemorrhage with afibrinogenemia
- O46.011 — Antepartum hemorrhage with afibrinogenemia, first trimester
- O46.012 — Antepartum hemorrhage with afibrinogenemia, second trimester
View all 32 codes in the O46 family