All ICD10 Codes
Chapter 15

O00–O9A: Pregnancy, Childbirth and the Puerperium

Pregnancy, Childbirth and the Puerperium diagnostic classification updated for 2026.

Chapter Instructions

Excludes1(Not coded here. Use a different code.)
  • supervision of normal pregnancy (Z34.-)
Excludes2(Not included here. Code separately if applicable.)
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)
Use Additional Code
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
All CodesBillable Only
Internal Codes
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  • 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

  • O45.91|

    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

  • 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

  • O46.013|

    Antepartum hemorrhage with afibrinogenemia, third trimester

  • O46.019|

    Antepartum hemorrhage with afibrinogenemia, unspecified trimester

  • O46.02|

    Antepartum hemorrhage with disseminated intravascular coagulation

  • O46.021|

    Antepartum hemorrhage with disseminated intravascular coagulation, first trimester

  • O46.022|

    Antepartum hemorrhage with disseminated intravascular coagulation, second trimester

  • O46.023|

    Antepartum hemorrhage with disseminated intravascular coagulation, third trimester

  • O46.029|

    Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester

  • O46.09|

    Antepartum hemorrhage with other coagulation defect

  • O46.091|

    Antepartum hemorrhage with other coagulation defect, first trimester

  • O46.092|

    Antepartum hemorrhage with other coagulation defect, second trimester

  • O46.093|

    Antepartum hemorrhage with other coagulation defect, third trimester

  • O46.099|

    Antepartum hemorrhage with other coagulation defect, unspecified trimester

  • O46.8|

    Other antepartum hemorrhage

  • O46.8X|

    Other antepartum hemorrhage

  • O46.8X1|

    Other antepartum hemorrhage, first trimester

  • O46.8X2|

    Other antepartum hemorrhage, second trimester

  • O46.8X3|

    Other antepartum hemorrhage, third trimester

  • O46.8X9|

    Other antepartum hemorrhage, unspecified trimester

  • O46.9|

    Antepartum hemorrhage, unspecified

  • O46.90|

    Antepartum hemorrhage, unspecified, unspecified trimester

  • O46.91|

    Antepartum hemorrhage, unspecified, first trimester

  • O46.92|

    Antepartum hemorrhage, unspecified, second trimester

  • O46.93|

    Antepartum hemorrhage, unspecified, third trimester

  • O47|

    False labor

  • O47.0|

    False labor before 37 completed weeks of gestation

  • O47.00|

    False labor before 37 completed weeks of gestation, unspecified trimester

  • O47.02|

    False labor before 37 completed weeks of gestation, second trimester

  • O47.03|

    False labor before 37 completed weeks of gestation, third trimester

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