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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  • O35.14X2|

    Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, fetus 2

  • O35.14X3|

    Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, fetus 3

  • O35.14X4|

    Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, fetus 4

  • O35.14X5|

    Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, fetus 5

  • O35.14X9|

    Maternal care for (suspected) chromosomal abnormality in fetus, Turner Syndrome, other fetus

  • O35.15|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality

  • O35.15X0|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, not applicable or unspecified

  • O35.15X1|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, fetus 1

  • O35.15X2|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, fetus 2

  • O35.15X3|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, fetus 3

  • O35.15X4|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, fetus 4

  • O35.15X5|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, fetus 5

  • O35.15X9|

    Maternal care for (suspected) chromosomal abnormality in fetus, sex chromosome abnormality, other fetus

  • O35.19|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality

  • O35.19X0|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, not applicable or unspecified

  • O35.19X1|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, fetus 1

  • O35.19X2|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, fetus 2

  • O35.19X3|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, fetus 3

  • O35.19X4|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, fetus 4

  • O35.19X5|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, fetus 5

  • O35.19X9|

    Maternal care for (suspected) chromosomal abnormality in fetus, other chromosomal abnormality, other fetus

  • O35.2|

    Maternal care for (suspected) hereditary disease in fetus

  • O35.2XX0|

    Maternal care for (suspected) hereditary disease in fetus, not applicable or unspecified

  • O35.2XX1|

    Maternal care for (suspected) hereditary disease in fetus, fetus 1

  • O35.2XX2|

    Maternal care for (suspected) hereditary disease in fetus, fetus 2

  • O35.2XX3|

    Maternal care for (suspected) hereditary disease in fetus, fetus 3

  • O35.2XX4|

    Maternal care for (suspected) hereditary disease in fetus, fetus 4

  • O35.2XX5|

    Maternal care for (suspected) hereditary disease in fetus, fetus 5

  • O35.2XX9|

    Maternal care for (suspected) hereditary disease in fetus, other fetus

  • O35.3|

    Maternal care for (suspected) damage to fetus from viral disease in mother

  • O35.3XX0|

    Maternal care for (suspected) damage to fetus from viral disease in mother, not applicable or unspecified

  • O35.3XX1|

    Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 1

  • O35.3XX2|

    Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 2

  • O35.3XX3|

    Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 3

  • O35.3XX4|

    Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 4

  • O35.3XX5|

    Maternal care for (suspected) damage to fetus from viral disease in mother, fetus 5

  • O35.3XX9|

    Maternal care for (suspected) damage to fetus from viral disease in mother, other fetus

  • O35.4|

    Maternal care for (suspected) damage to fetus from alcohol

  • O35.4XX0|

    Maternal care for (suspected) damage to fetus from alcohol, not applicable or unspecified

  • O35.4XX1|

    Maternal care for (suspected) damage to fetus from alcohol, fetus 1

  • O35.4XX2|

    Maternal care for (suspected) damage to fetus from alcohol, fetus 2

  • O35.4XX3|

    Maternal care for (suspected) damage to fetus from alcohol, fetus 3

  • O35.4XX4|

    Maternal care for (suspected) damage to fetus from alcohol, fetus 4

  • O35.4XX5|

    Maternal care for (suspected) damage to fetus from alcohol, fetus 5

  • O35.4XX9|

    Maternal care for (suspected) damage to fetus from alcohol, other fetus

  • O35.5|

    Maternal care for (suspected) damage to fetus by drugs

  • O35.5XX0|

    Maternal care for (suspected) damage to fetus by drugs, not applicable or unspecified

  • O35.5XX1|

    Maternal care for (suspected) damage to fetus by drugs, fetus 1

  • O35.5XX2|

    Maternal care for (suspected) damage to fetus by drugs, fetus 2

  • O35.5XX3|

    Maternal care for (suspected) damage to fetus by drugs, fetus 3

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