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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  • O41.93|

    Disorder of amniotic fluid and membranes, unspecified, third trimester

  • O41.93X0|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, not applicable or unspecified

  • O41.93X1|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 1

  • O41.93X2|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 2

  • O41.93X3|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 3

  • O41.93X4|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 4

  • O41.93X5|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, fetus 5

  • O41.93X9|

    Disorder of amniotic fluid and membranes, unspecified, third trimester, other fetus

  • O42|

    Premature rupture of membranes

  • O42.0|

    Premature rupture of membranes, onset of labor within 24 hours of rupture

  • O42.00|

    Premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified weeks of gestation

  • O42.01|

    Preterm premature rupture of membranes, onset of labor within 24 hours of rupture

  • O42.011|

    Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, first trimester

  • O42.012|

    Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, second trimester

  • O42.013|

    Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, third trimester

  • O42.019|

    Preterm premature rupture of membranes, onset of labor within 24 hours of rupture, unspecified trimester

  • O42.02|

    Full-term premature rupture of membranes, onset of labor within 24 hours of rupture

  • O42.1|

    Premature rupture of membranes, onset of labor more than 24 hours following rupture

  • O42.10|

    Premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified weeks of gestation

  • O42.11|

    Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture

  • O42.111|

    Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, first trimester

  • O42.112|

    Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, second trimester

  • O42.113|

    Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, third trimester

  • O42.119|

    Preterm premature rupture of membranes, onset of labor more than 24 hours following rupture, unspecified trimester

  • O42.12|

    Full-term premature rupture of membranes, onset of labor more than 24 hours following rupture

  • O42.9|

    Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

  • O42.90|

    Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation

  • O42.91|

    Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

  • O42.911|

    Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, first trimester

  • O42.912|

    Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, second trimester

  • O42.913|

    Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, third trimester

  • O42.919|

    Preterm premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified trimester

  • O42.92|

    Full-term premature rupture of membranes, unspecified as to length of time between rupture and onset of labor

  • O43|

    Placental disorders

  • O43.0|

    Placental transfusion syndromes

  • O43.01|

    Fetomaternal placental transfusion syndrome

  • O43.011|

    Fetomaternal placental transfusion syndrome, first trimester

  • O43.012|

    Fetomaternal placental transfusion syndrome, second trimester

  • O43.013|

    Fetomaternal placental transfusion syndrome, third trimester

  • O43.019|

    Fetomaternal placental transfusion syndrome, unspecified trimester

  • O43.02|

    Fetus-to-fetus placental transfusion syndrome

  • O43.021|

    Fetus-to-fetus placental transfusion syndrome, first trimester

  • O43.022|

    Fetus-to-fetus placental transfusion syndrome, second trimester

  • O43.023|

    Fetus-to-fetus placental transfusion syndrome, third trimester

  • O43.029|

    Fetus-to-fetus placental transfusion syndrome, unspecified trimester

  • O43.1|

    Malformation of placenta

  • O43.10|

    Malformation of placenta, unspecified

  • O43.101|

    Malformation of placenta, unspecified, first trimester

  • O43.102|

    Malformation of placenta, unspecified, second trimester

  • O43.103|

    Malformation of placenta, unspecified, third trimester

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