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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