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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  • O36.21X9|

    Maternal care for hydrops fetalis, first trimester, other fetus

  • O36.22|

    Maternal care for hydrops fetalis, second trimester

  • O36.22X0|

    Maternal care for hydrops fetalis, second trimester, not applicable or unspecified

  • O36.22X1|

    Maternal care for hydrops fetalis, second trimester, fetus 1

  • O36.22X2|

    Maternal care for hydrops fetalis, second trimester, fetus 2

  • O36.22X3|

    Maternal care for hydrops fetalis, second trimester, fetus 3

  • O36.22X4|

    Maternal care for hydrops fetalis, second trimester, fetus 4

  • O36.22X5|

    Maternal care for hydrops fetalis, second trimester, fetus 5

  • O36.22X9|

    Maternal care for hydrops fetalis, second trimester, other fetus

  • O36.23|

    Maternal care for hydrops fetalis, third trimester

  • O36.23X0|

    Maternal care for hydrops fetalis, third trimester, not applicable or unspecified

  • O36.23X1|

    Maternal care for hydrops fetalis, third trimester, fetus 1

  • O36.23X2|

    Maternal care for hydrops fetalis, third trimester, fetus 2

  • O36.23X3|

    Maternal care for hydrops fetalis, third trimester, fetus 3

  • O36.23X4|

    Maternal care for hydrops fetalis, third trimester, fetus 4

  • O36.23X5|

    Maternal care for hydrops fetalis, third trimester, fetus 5

  • O36.23X9|

    Maternal care for hydrops fetalis, third trimester, other fetus

  • O36.4|

    Maternal care for intrauterine death

  • O36.4XX0|

    Maternal care for intrauterine death, not applicable or unspecified

  • O36.4XX1|

    Maternal care for intrauterine death, fetus 1

  • O36.4XX2|

    Maternal care for intrauterine death, fetus 2

  • O36.4XX3|

    Maternal care for intrauterine death, fetus 3

  • O36.4XX4|

    Maternal care for intrauterine death, fetus 4

  • O36.4XX5|

    Maternal care for intrauterine death, fetus 5

  • O36.4XX9|

    Maternal care for intrauterine death, other fetus

  • O36.5|

    Maternal care for known or suspected poor fetal growth

  • O36.51|

    Maternal care for known or suspected placental insufficiency

  • O36.511|

    Maternal care for known or suspected placental insufficiency, first trimester

  • O36.5110|

    Maternal care for known or suspected placental insufficiency, first trimester, not applicable or unspecified

  • O36.5111|

    Maternal care for known or suspected placental insufficiency, first trimester, fetus 1

  • O36.5112|

    Maternal care for known or suspected placental insufficiency, first trimester, fetus 2

  • O36.5113|

    Maternal care for known or suspected placental insufficiency, first trimester, fetus 3

  • O36.5114|

    Maternal care for known or suspected placental insufficiency, first trimester, fetus 4

  • O36.5115|

    Maternal care for known or suspected placental insufficiency, first trimester, fetus 5

  • O36.5119|

    Maternal care for known or suspected placental insufficiency, first trimester, other fetus

  • O36.512|

    Maternal care for known or suspected placental insufficiency, second trimester

  • O36.5120|

    Maternal care for known or suspected placental insufficiency, second trimester, not applicable or unspecified

  • O36.5121|

    Maternal care for known or suspected placental insufficiency, second trimester, fetus 1

  • O36.5122|

    Maternal care for known or suspected placental insufficiency, second trimester, fetus 2

  • O36.5123|

    Maternal care for known or suspected placental insufficiency, second trimester, fetus 3

  • O36.5124|

    Maternal care for known or suspected placental insufficiency, second trimester, fetus 4

  • O36.5125|

    Maternal care for known or suspected placental insufficiency, second trimester, fetus 5

  • O36.5129|

    Maternal care for known or suspected placental insufficiency, second trimester, other fetus

  • O36.513|

    Maternal care for known or suspected placental insufficiency, third trimester

  • O36.5130|

    Maternal care for known or suspected placental insufficiency, third trimester, not applicable or unspecified

  • O36.5131|

    Maternal care for known or suspected placental insufficiency, third trimester, fetus 1

  • O36.5132|

    Maternal care for known or suspected placental insufficiency, third trimester, fetus 2

  • O36.5133|

    Maternal care for known or suspected placental insufficiency, third trimester, fetus 3

  • O36.5134|

    Maternal care for known or suspected placental insufficiency, third trimester, fetus 4

  • O36.5135|

    Maternal care for known or suspected placental insufficiency, third trimester, fetus 5

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