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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  • O33.6XX5|

    Maternal care for disproportion due to hydrocephalic fetus, fetus 5

  • O33.6XX9|

    Maternal care for disproportion due to hydrocephalic fetus, other fetus

  • O33.7|

    Maternal care for disproportion due to other fetal deformities

  • O33.7XX0|

    Maternal care for disproportion due to other fetal deformities, not applicable or unspecified

  • O33.7XX1|

    Maternal care for disproportion due to other fetal deformities, fetus 1

  • O33.7XX2|

    Maternal care for disproportion due to other fetal deformities, fetus 2

  • O33.7XX3|

    Maternal care for disproportion due to other fetal deformities, fetus 3

  • O33.7XX4|

    Maternal care for disproportion due to other fetal deformities, fetus 4

  • O33.7XX5|

    Maternal care for disproportion due to other fetal deformities, fetus 5

  • O33.7XX9|

    Maternal care for disproportion due to other fetal deformities, other fetus

  • O33.8|

    Maternal care for disproportion of other origin

  • O33.9|

    Maternal care for disproportion, unspecified

  • O34|

    Maternal care for abnormality of pelvic organs

  • O34.0|

    Maternal care for congenital malformation of uterus

  • O34.00|

    Maternal care for unspecified congenital malformation of uterus, unspecified trimester

  • O34.01|

    Maternal care for unspecified congenital malformation of uterus, first trimester

  • O34.02|

    Maternal care for unspecified congenital malformation of uterus, second trimester

  • O34.03|

    Maternal care for unspecified congenital malformation of uterus, third trimester

  • O34.1|

    Maternal care for benign tumor of corpus uteri

  • O34.10|

    Maternal care for benign tumor of corpus uteri, unspecified trimester

  • O34.11|

    Maternal care for benign tumor of corpus uteri, first trimester

  • O34.12|

    Maternal care for benign tumor of corpus uteri, second trimester

  • O34.13|

    Maternal care for benign tumor of corpus uteri, third trimester

  • O34.2|

    Maternal care due to uterine scar from previous surgery

  • O34.21|

    Maternal care for scar from previous cesarean delivery

  • O34.211|

    Maternal care for low transverse scar from previous cesarean delivery

  • O34.212|

    Maternal care for vertical scar from previous cesarean delivery

  • O34.218|

    Maternal care for other type scar from previous cesarean delivery

  • O34.219|

    Maternal care for unspecified type scar from previous cesarean delivery

  • O34.22|

    Maternal care for cesarean scar defect (isthmocele)

  • O34.29|

    Maternal care due to uterine scar from other previous surgery

  • O34.3|

    Maternal care for cervical incompetence

  • O34.30|

    Maternal care for cervical incompetence, unspecified trimester

  • O34.31|

    Maternal care for cervical incompetence, first trimester

  • O34.32|

    Maternal care for cervical incompetence, second trimester

  • O34.33|

    Maternal care for cervical incompetence, third trimester

  • O34.4|

    Maternal care for other abnormalities of cervix

  • O34.40|

    Maternal care for other abnormalities of cervix, unspecified trimester

  • O34.41|

    Maternal care for other abnormalities of cervix, first trimester

  • O34.42|

    Maternal care for other abnormalities of cervix, second trimester

  • O34.43|

    Maternal care for other abnormalities of cervix, third trimester

  • O34.5|

    Maternal care for other abnormalities of gravid uterus

  • O34.51|

    Maternal care for incarceration of gravid uterus

  • O34.511|

    Maternal care for incarceration of gravid uterus, first trimester

  • O34.512|

    Maternal care for incarceration of gravid uterus, second trimester

  • O34.513|

    Maternal care for incarceration of gravid uterus, third trimester

  • O34.519|

    Maternal care for incarceration of gravid uterus, unspecified trimester

  • O34.52|

    Maternal care for prolapse of gravid uterus

  • O34.521|

    Maternal care for prolapse of gravid uterus, first trimester

  • O34.522|

    Maternal care for prolapse of gravid uterus, second trimester

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