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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  • O34.523—

    Maternal care for prolapse of gravid uterus, third trimester

  • O34.529—

    Maternal care for prolapse of gravid uterus, unspecified trimester

  • O34.53—

    Maternal care for retroversion of gravid uterus

  • O34.531—

    Maternal care for retroversion of gravid uterus, first trimester

  • O34.532—

    Maternal care for retroversion of gravid uterus, second trimester

  • O34.533—

    Maternal care for retroversion of gravid uterus, third trimester

  • O34.539—

    Maternal care for retroversion of gravid uterus, unspecified trimester

  • O34.59—

    Maternal care for other abnormalities of gravid uterus

  • O34.591—

    Maternal care for other abnormalities of gravid uterus, first trimester

  • O34.592—

    Maternal care for other abnormalities of gravid uterus, second trimester

  • O34.593—

    Maternal care for other abnormalities of gravid uterus, third trimester

  • O34.599—

    Maternal care for other abnormalities of gravid uterus, unspecified trimester

  • O34.6—

    Maternal care for abnormality of vagina

  • O34.60—

    Maternal care for abnormality of vagina, unspecified trimester

  • O34.61—

    Maternal care for abnormality of vagina, first trimester

  • O34.62—

    Maternal care for abnormality of vagina, second trimester

  • O34.63—

    Maternal care for abnormality of vagina, third trimester

  • O34.7—

    Maternal care for abnormality of vulva and perineum

  • O34.70—

    Maternal care for abnormality of vulva and perineum, unspecified trimester

  • O34.71—

    Maternal care for abnormality of vulva and perineum, first trimester

  • O34.72—

    Maternal care for abnormality of vulva and perineum, second trimester

  • O34.73—

    Maternal care for abnormality of vulva and perineum, third trimester

  • O34.8—

    Maternal care for other abnormalities of pelvic organs

  • O34.80—

    Maternal care for other abnormalities of pelvic organs, unspecified trimester

  • O34.81—

    Maternal care for other abnormalities of pelvic organs, first trimester

  • O34.82—

    Maternal care for other abnormalities of pelvic organs, second trimester

  • O34.83—

    Maternal care for other abnormalities of pelvic organs, third trimester

  • O34.9—

    Maternal care for abnormality of pelvic organ, unspecified

  • O34.90—

    Maternal care for abnormality of pelvic organ, unspecified, unspecified trimester

  • O34.91—

    Maternal care for abnormality of pelvic organ, unspecified, first trimester

  • O34.92—

    Maternal care for abnormality of pelvic organ, unspecified, second trimester

  • O34.93—

    Maternal care for abnormality of pelvic organ, unspecified, third trimester

  • O35—

    Maternal care for known or suspected fetal abnormality and damage

  • O35.0—

    Maternal care for (suspected) central nervous system malformation in fetus

  • O35.00—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified

  • O35.00X0—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, not applicable or unspecified

  • O35.00X1—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 1

  • O35.00X2—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 2

  • O35.00X3—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 3

  • O35.00X4—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 4

  • O35.00X5—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, fetus 5

  • O35.00X9—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, unspecified, other fetus

  • O35.01—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum

  • O35.01X0—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, not applicable or unspecified

  • O35.01X1—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 1

  • O35.01X2—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 2

  • O35.01X3—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 3

  • O35.01X4—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 4

  • O35.01X5—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 5

  • O35.01X9—

    Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, other fetus

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