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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  • O36.5920—

    Maternal care for other known or suspected poor fetal growth, second trimester, not applicable or unspecified

  • O36.5921—

    Maternal care for other known or suspected poor fetal growth, second trimester, fetus 1

  • O36.5922—

    Maternal care for other known or suspected poor fetal growth, second trimester, fetus 2

  • O36.5923—

    Maternal care for other known or suspected poor fetal growth, second trimester, fetus 3

  • O36.5924—

    Maternal care for other known or suspected poor fetal growth, second trimester, fetus 4

  • O36.5925—

    Maternal care for other known or suspected poor fetal growth, second trimester, fetus 5

  • O36.5929—

    Maternal care for other known or suspected poor fetal growth, second trimester, other fetus

  • O36.593—

    Maternal care for other known or suspected poor fetal growth, third trimester

  • O36.5930—

    Maternal care for other known or suspected poor fetal growth, third trimester, not applicable or unspecified

  • O36.5931—

    Maternal care for other known or suspected poor fetal growth, third trimester, fetus 1

  • O36.5932—

    Maternal care for other known or suspected poor fetal growth, third trimester, fetus 2

  • O36.5933—

    Maternal care for other known or suspected poor fetal growth, third trimester, fetus 3

  • O36.5934—

    Maternal care for other known or suspected poor fetal growth, third trimester, fetus 4

  • O36.5935—

    Maternal care for other known or suspected poor fetal growth, third trimester, fetus 5

  • O36.5939—

    Maternal care for other known or suspected poor fetal growth, third trimester, other fetus

  • O36.599—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester

  • O36.5990—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, not applicable or unspecified

  • O36.5991—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 1

  • O36.5992—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 2

  • O36.5993—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 3

  • O36.5994—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 4

  • O36.5995—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, fetus 5

  • O36.5999—

    Maternal care for other known or suspected poor fetal growth, unspecified trimester, other fetus

  • O36.60—

    Maternal care for excessive fetal growth, unspecified trimester

  • O36.60X0—

    Maternal care for excessive fetal growth, unspecified trimester, not applicable or unspecified

  • O36.60X1—

    Maternal care for excessive fetal growth, unspecified trimester, fetus 1

  • O36.60X2—

    Maternal care for excessive fetal growth, unspecified trimester, fetus 2

  • O36.60X3—

    Maternal care for excessive fetal growth, unspecified trimester, fetus 3

  • O36.60X4—

    Maternal care for excessive fetal growth, unspecified trimester, fetus 4

  • O36.60X5—

    Maternal care for excessive fetal growth, unspecified trimester, fetus 5

  • O36.60X9—

    Maternal care for excessive fetal growth, unspecified trimester, other fetus

  • O36.61—

    Maternal care for excessive fetal growth, first trimester

  • O36.61X0—

    Maternal care for excessive fetal growth, first trimester, not applicable or unspecified

  • O36.61X1—

    Maternal care for excessive fetal growth, first trimester, fetus 1

  • O36.61X2—

    Maternal care for excessive fetal growth, first trimester, fetus 2

  • O36.61X3—

    Maternal care for excessive fetal growth, first trimester, fetus 3

  • O36.61X4—

    Maternal care for excessive fetal growth, first trimester, fetus 4

  • O36.61X5—

    Maternal care for excessive fetal growth, first trimester, fetus 5

  • O36.61X9—

    Maternal care for excessive fetal growth, first trimester, other fetus

  • O36.62—

    Maternal care for excessive fetal growth, second trimester

  • O36.62X0—

    Maternal care for excessive fetal growth, second trimester, not applicable or unspecified

  • O36.62X1—

    Maternal care for excessive fetal growth, second trimester, fetus 1

  • O36.62X2—

    Maternal care for excessive fetal growth, second trimester, fetus 2

  • O36.62X3—

    Maternal care for excessive fetal growth, second trimester, fetus 3

  • O36.62X4—

    Maternal care for excessive fetal growth, second trimester, fetus 4

  • O36.62X5—

    Maternal care for excessive fetal growth, second trimester, fetus 5

  • O36.62X9—

    Maternal care for excessive fetal growth, second trimester, other fetus

  • O36.63—

    Maternal care for excessive fetal growth, third trimester

  • O36.63X0—

    Maternal care for excessive fetal growth, third trimester, not applicable or unspecified

  • O36.63X1—

    Maternal care for excessive fetal growth, third trimester, fetus 1

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