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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  • O36.91|

    Maternal care for fetal problem, unspecified, first trimester

  • O36.91X0|

    Maternal care for fetal problem, unspecified, first trimester, not applicable or unspecified

  • O36.91X1|

    Maternal care for fetal problem, unspecified, first trimester, fetus 1

  • O36.91X2|

    Maternal care for fetal problem, unspecified, first trimester, fetus 2

  • O36.91X3|

    Maternal care for fetal problem, unspecified, first trimester, fetus 3

  • O36.91X4|

    Maternal care for fetal problem, unspecified, first trimester, fetus 4

  • O36.91X5|

    Maternal care for fetal problem, unspecified, first trimester, fetus 5

  • O36.91X9|

    Maternal care for fetal problem, unspecified, first trimester, other fetus

  • O36.92|

    Maternal care for fetal problem, unspecified, second trimester

  • O36.92X0|

    Maternal care for fetal problem, unspecified, second trimester, not applicable or unspecified

  • O36.92X1|

    Maternal care for fetal problem, unspecified, second trimester, fetus 1

  • O36.92X2|

    Maternal care for fetal problem, unspecified, second trimester, fetus 2

  • O36.92X3|

    Maternal care for fetal problem, unspecified, second trimester, fetus 3

  • O36.92X4|

    Maternal care for fetal problem, unspecified, second trimester, fetus 4

  • O36.92X5|

    Maternal care for fetal problem, unspecified, second trimester, fetus 5

  • O36.92X9|

    Maternal care for fetal problem, unspecified, second trimester, other fetus

  • O36.93|

    Maternal care for fetal problem, unspecified, third trimester

  • O36.93X0|

    Maternal care for fetal problem, unspecified, third trimester, not applicable or unspecified

  • O36.93X1|

    Maternal care for fetal problem, unspecified, third trimester, fetus 1

  • O36.93X2|

    Maternal care for fetal problem, unspecified, third trimester, fetus 2

  • O36.93X3|

    Maternal care for fetal problem, unspecified, third trimester, fetus 3

  • O36.93X4|

    Maternal care for fetal problem, unspecified, third trimester, fetus 4

  • O36.93X5|

    Maternal care for fetal problem, unspecified, third trimester, fetus 5

  • O36.93X9|

    Maternal care for fetal problem, unspecified, third trimester, other fetus

  • O40|

    Polyhydramnios

  • O40.1|

    Polyhydramnios, first trimester

  • O40.1XX0|

    Polyhydramnios, first trimester, not applicable or unspecified

  • O40.1XX1|

    Polyhydramnios, first trimester, fetus 1

  • O40.1XX2|

    Polyhydramnios, first trimester, fetus 2

  • O40.1XX3|

    Polyhydramnios, first trimester, fetus 3

  • O40.1XX4|

    Polyhydramnios, first trimester, fetus 4

  • O40.1XX5|

    Polyhydramnios, first trimester, fetus 5

  • O40.1XX9|

    Polyhydramnios, first trimester, other fetus

  • O40.2|

    Polyhydramnios, second trimester

  • O40.2XX0|

    Polyhydramnios, second trimester, not applicable or unspecified

  • O40.2XX1|

    Polyhydramnios, second trimester, fetus 1

  • O40.2XX2|

    Polyhydramnios, second trimester, fetus 2

  • O40.2XX3|

    Polyhydramnios, second trimester, fetus 3

  • O40.2XX4|

    Polyhydramnios, second trimester, fetus 4

  • O40.2XX5|

    Polyhydramnios, second trimester, fetus 5

  • O40.2XX9|

    Polyhydramnios, second trimester, other fetus

  • O40.3|

    Polyhydramnios, third trimester

  • O40.3XX0|

    Polyhydramnios, third trimester, not applicable or unspecified

  • O40.3XX1|

    Polyhydramnios, third trimester, fetus 1

  • O40.3XX2|

    Polyhydramnios, third trimester, fetus 2

  • O40.3XX3|

    Polyhydramnios, third trimester, fetus 3

  • O40.3XX4|

    Polyhydramnios, third trimester, fetus 4

  • O40.3XX5|

    Polyhydramnios, third trimester, fetus 5

  • O40.3XX9|

    Polyhydramnios, third trimester, other fetus

  • O40.9|

    Polyhydramnios, unspecified trimester

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