O45.91 is the authoritative medical code for Premature separation of placenta, unspecified, first trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for premature separation of placenta, unspecified, first trimester (ICD-10-CM O45.91), 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
Premature separation of placenta, unspecified, first trimester is a billable ICD-10-CM diagnosis code O45.91.
Codes in This Family (31)
Official ICD-10-CM classifications in the same code family as O45.91, with their registry titles.
- O45 — Premature separation of placenta [abruptio placentae]
- O45.0 — Premature separation of placenta with coagulation defect
- O45.001 — Premature separation of placenta with coagulation defect, unspecified, first trimester
- O45.002 — Premature separation of placenta with coagulation defect, unspecified, second trimester
- O45.003 — Premature separation of placenta with coagulation defect, unspecified, third trimester
- O45.009 — Premature separation of placenta with coagulation defect, unspecified, unspecified trimester
- O45.01 — Premature separation of placenta with afibrinogenemia
- O45.011 — Premature separation of placenta with afibrinogenemia, first trimester
- O45.012 — Premature separation of placenta with afibrinogenemia, second trimester
- O45.013 — Premature separation of placenta with afibrinogenemia, third trimester
- O45.019 — Premature separation of placenta with afibrinogenemia, unspecified trimester
- O45.02 — Premature separation of placenta with disseminated intravascular coagulation
- O45.021 — Premature separation of placenta with disseminated intravascular coagulation, first trimester
- O45.022 — Premature separation of placenta with disseminated intravascular coagulation, second trimester
- O45.023 — Premature separation of placenta with disseminated intravascular coagulation, third trimester
- O45.029 — Premature separation of placenta with disseminated intravascular coagulation, unspecified trimester
- O45.09 — Premature separation of placenta with other coagulation defect
- O45.091 — Premature separation of placenta with other coagulation defect, first trimester
- O45.092 — Premature separation of placenta with other coagulation defect, second trimester
- O45.093 — Premature separation of placenta with other coagulation defect, third trimester
- O45.099 — Premature separation of placenta with other coagulation defect, unspecified trimester
- O45.8 — Other premature separation of placenta
- O45.8X — Other premature separation of placenta
- O45.8X1 — Other premature separation of placenta, first trimester
- O45.8X2 — Other premature separation of placenta, second trimester
- O45.8X3 — Other premature separation of placenta, third trimester
- O45.8X9 — Other premature separation of placenta, unspecified trimester
- O45.9 — Premature separation of placenta, unspecified
- O45.90 — Premature separation of placenta, unspecified, unspecified trimester
- O45.92 — Premature separation of placenta, unspecified, second trimester
- O45.93 — Premature separation of placenta, unspecified, third trimester
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code O41.91
Disorder of amniotic fluid and membranes, unspecified, first trimester
ICD Code O42.91
Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor