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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  • O36.1199|

    Maternal care for Anti-A sensitization, unspecified trimester, other fetus

  • O36.19|

    Maternal care for other isoimmunization

  • O36.191|

    Maternal care for other isoimmunization, first trimester

  • O36.1910|

    Maternal care for other isoimmunization, first trimester, not applicable or unspecified

  • O36.1911|

    Maternal care for other isoimmunization, first trimester, fetus 1

  • O36.1912|

    Maternal care for other isoimmunization, first trimester, fetus 2

  • O36.1913|

    Maternal care for other isoimmunization, first trimester, fetus 3

  • O36.1914|

    Maternal care for other isoimmunization, first trimester, fetus 4

  • O36.1915|

    Maternal care for other isoimmunization, first trimester, fetus 5

  • O36.1919|

    Maternal care for other isoimmunization, first trimester, other fetus

  • O36.192|

    Maternal care for other isoimmunization, second trimester

  • O36.1920|

    Maternal care for other isoimmunization, second trimester, not applicable or unspecified

  • O36.1921|

    Maternal care for other isoimmunization, second trimester, fetus 1

  • O36.1922|

    Maternal care for other isoimmunization, second trimester, fetus 2

  • O36.1923|

    Maternal care for other isoimmunization, second trimester, fetus 3

  • O36.1924|

    Maternal care for other isoimmunization, second trimester, fetus 4

  • O36.1925|

    Maternal care for other isoimmunization, second trimester, fetus 5

  • O36.1929|

    Maternal care for other isoimmunization, second trimester, other fetus

  • O36.193|

    Maternal care for other isoimmunization, third trimester

  • O36.1930|

    Maternal care for other isoimmunization, third trimester, not applicable or unspecified

  • O36.1931|

    Maternal care for other isoimmunization, third trimester, fetus 1

  • O36.1932|

    Maternal care for other isoimmunization, third trimester, fetus 2

  • O36.1933|

    Maternal care for other isoimmunization, third trimester, fetus 3

  • O36.1934|

    Maternal care for other isoimmunization, third trimester, fetus 4

  • O36.1935|

    Maternal care for other isoimmunization, third trimester, fetus 5

  • O36.1939|

    Maternal care for other isoimmunization, third trimester, other fetus

  • O36.199|

    Maternal care for other isoimmunization, unspecified trimester

  • O36.1990|

    Maternal care for other isoimmunization, unspecified trimester, not applicable or unspecified

  • O36.1991|

    Maternal care for other isoimmunization, unspecified trimester, fetus 1

  • O36.1992|

    Maternal care for other isoimmunization, unspecified trimester, fetus 2

  • O36.1993|

    Maternal care for other isoimmunization, unspecified trimester, fetus 3

  • O36.1994|

    Maternal care for other isoimmunization, unspecified trimester, fetus 4

  • O36.1995|

    Maternal care for other isoimmunization, unspecified trimester, fetus 5

  • O36.1999|

    Maternal care for other isoimmunization, unspecified trimester, other fetus

  • O36.2|

    Maternal care for hydrops fetalis

  • O36.20|

    Maternal care for hydrops fetalis, unspecified trimester

  • O36.20X0|

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

  • O36.20X1|

    Maternal care for hydrops fetalis, unspecified trimester, fetus 1

  • O36.20X2|

    Maternal care for hydrops fetalis, unspecified trimester, fetus 2

  • O36.20X3|

    Maternal care for hydrops fetalis, unspecified trimester, fetus 3

  • O36.20X4|

    Maternal care for hydrops fetalis, unspecified trimester, fetus 4

  • O36.20X5|

    Maternal care for hydrops fetalis, unspecified trimester, fetus 5

  • O36.20X9|

    Maternal care for hydrops fetalis, unspecified trimester, other fetus

  • O36.21|

    Maternal care for hydrops fetalis, first trimester

  • O36.21X0|

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

  • O36.21X1|

    Maternal care for hydrops fetalis, first trimester, fetus 1

  • O36.21X2|

    Maternal care for hydrops fetalis, first trimester, fetus 2

  • O36.21X3|

    Maternal care for hydrops fetalis, first trimester, fetus 3

  • O36.21X4|

    Maternal care for hydrops fetalis, first trimester, fetus 4

  • O36.21X5|

    Maternal care for hydrops fetalis, first trimester, fetus 5

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