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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  • O35.5XX4—

    Maternal care for (suspected) damage to fetus by drugs, fetus 4

  • O35.5XX5—

    Maternal care for (suspected) damage to fetus by drugs, fetus 5

  • O35.5XX9—

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

  • O35.6—

    Maternal care for (suspected) damage to fetus by radiation

  • O35.6XX0—

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

  • O35.6XX1—

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

  • O35.6XX2—

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

  • O35.6XX3—

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

  • O35.6XX4—

    Maternal care for (suspected) damage to fetus by radiation, fetus 4

  • O35.6XX5—

    Maternal care for (suspected) damage to fetus by radiation, fetus 5

  • O35.6XX9—

    Maternal care for (suspected) damage to fetus by radiation, other fetus

  • O35.7—

    Maternal care for (suspected) damage to fetus by other medical procedures

  • O35.7XX0—

    Maternal care for (suspected) damage to fetus by other medical procedures, not applicable or unspecified

  • O35.7XX1—

    Maternal care for (suspected) damage to fetus by other medical procedures, fetus 1

  • O35.7XX2—

    Maternal care for (suspected) damage to fetus by other medical procedures, fetus 2

  • O35.7XX3—

    Maternal care for (suspected) damage to fetus by other medical procedures, fetus 3

  • O35.7XX4—

    Maternal care for (suspected) damage to fetus by other medical procedures, fetus 4

  • O35.7XX5—

    Maternal care for (suspected) damage to fetus by other medical procedures, fetus 5

  • O35.7XX9—

    Maternal care for (suspected) damage to fetus by other medical procedures, other fetus

  • O35.8—

    Maternal care for other (suspected) fetal abnormality and damage

  • O35.8XX0—

    Maternal care for other (suspected) fetal abnormality and damage, not applicable or unspecified

  • O35.8XX1—

    Maternal care for other (suspected) fetal abnormality and damage, fetus 1

  • O35.8XX2—

    Maternal care for other (suspected) fetal abnormality and damage, fetus 2

  • O35.8XX3—

    Maternal care for other (suspected) fetal abnormality and damage, fetus 3

  • O35.8XX4—

    Maternal care for other (suspected) fetal abnormality and damage, fetus 4

  • O35.8XX5—

    Maternal care for other (suspected) fetal abnormality and damage, fetus 5

  • O35.8XX9—

    Maternal care for other (suspected) fetal abnormality and damage, other fetus

  • O35.9—

    Maternal care for (suspected) fetal abnormality and damage, unspecified

  • O35.9XX0—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, not applicable or unspecified

  • O35.9XX1—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, fetus 1

  • O35.9XX2—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, fetus 2

  • O35.9XX3—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, fetus 3

  • O35.9XX4—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, fetus 4

  • O35.9XX5—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, fetus 5

  • O35.9XX9—

    Maternal care for (suspected) fetal abnormality and damage, unspecified, other fetus

  • O35.A—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies

  • O35.AXX0—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, not applicable or unspecified

  • O35.AXX1—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, fetus 1

  • O35.AXX2—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, fetus 2

  • O35.AXX3—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, fetus 3

  • O35.AXX4—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, fetus 4

  • O35.AXX5—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, fetus 5

  • O35.AXX9—

    Maternal care for other (suspected) fetal abnormality and damage, fetal facial anomalies, other fetus

  • O35.B—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies

  • O35.BXX0—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies, not applicable or unspecified

  • O35.BXX1—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies, fetus 1

  • O35.BXX2—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies, fetus 2

  • O35.BXX3—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies, fetus 3

  • O35.BXX4—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies, fetus 4

  • O35.BXX5—

    Maternal care for other (suspected) fetal abnormality and damage, fetal cardiac anomalies, fetus 5

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