Premature separation of placenta [abruptio placentae] (O45) ICD-10-CM
The O45 code range covers premature separation of placenta [abruptio placentae] with 33 ICD-10-CM diagnosis codes. 24 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the O45 Range 33 codes · 24 billable
- O45 Premature separation of placenta [abruptio placentae]Non-billable
- O45.0 Premature separation of placenta with coagulation defectNon-billable
- O45.00 Premature separation of placenta with coagulation defect, unspecifiedNon-billable
- 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 afibrinogenemiaNon-billable
- 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 coagulationNon-billable
- 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 defectNon-billable
- 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 placentaNon-billable
- O45.8X Other premature separation of placentaNon-billable
- 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, unspecifiedNon-billable
- O45.90 Premature separation of placenta, unspecified, unspecified trimester
- O45.91 Premature separation of placenta, unspecified, first trimester
- O45.92 Premature separation of placenta, unspecified, second trimester
- O45.93 Premature separation of placenta, unspecified, third trimester
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the O45 range.
Abruptio Placentae
Premature separation of the normally implanted PLACENTA from the UTERUS. Signs of varying degree of severity include UTERINE BLEEDING, uterine MUSCLE HYPERTONIA, and FETAL DISTRESS or FETAL DEATH.
Placental Abruption
Placental separation from the uterus with bleeding (concealed or vaginal) before fetal birth, with or without maternal/fetal compromise. (reVITALize)
About the O45 Code Range
Placental abruption means the placenta separates from the uterus before birth, with bleeding that may be hidden or vaginal.
O45 separates cases with a blood-clotting problem from other cases and cases where the type is unspecified. O45.0 further distinguishes unspecified, named, and other clotting problems. O45.8 identifies other premature separations, while O45.9 leaves the type unspecified. Each branch also distinguishes the first, second, third, or unspecified trimester.
Questions About This Page
How many billable codes are in the O45 range?
Of the 33 codes in this range, 24 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the O45 range classify?
The range classifies premature separation of placenta [abruptio placentae]. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
