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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  • O41.1490—

    Placentitis, unspecified trimester, not applicable or unspecified

  • O41.1491—

    Placentitis, unspecified trimester, fetus 1

  • O41.1492—

    Placentitis, unspecified trimester, fetus 2

  • O41.1493—

    Placentitis, unspecified trimester, fetus 3

  • O41.1494—

    Placentitis, unspecified trimester, fetus 4

  • O41.1495—

    Placentitis, unspecified trimester, fetus 5

  • O41.1499—

    Placentitis, unspecified trimester, other fetus

  • O41.8X1—

    Other specified disorders of amniotic fluid and membranes, first trimester

  • O41.8X10—

    Other specified disorders of amniotic fluid and membranes, first trimester, not applicable or unspecified

  • O41.8X11—

    Other specified disorders of amniotic fluid and membranes, first trimester, fetus 1

  • O41.8X12—

    Other specified disorders of amniotic fluid and membranes, first trimester, fetus 2

  • O41.8X13—

    Other specified disorders of amniotic fluid and membranes, first trimester, fetus 3

  • O41.8X14—

    Other specified disorders of amniotic fluid and membranes, first trimester, fetus 4

  • O41.8X15—

    Other specified disorders of amniotic fluid and membranes, first trimester, fetus 5

  • O41.8X19—

    Other specified disorders of amniotic fluid and membranes, first trimester, other fetus

  • O41.8X2—

    Other specified disorders of amniotic fluid and membranes, second trimester

  • O41.8X20—

    Other specified disorders of amniotic fluid and membranes, second trimester, not applicable or unspecified

  • O41.8X21—

    Other specified disorders of amniotic fluid and membranes, second trimester, fetus 1

  • O41.8X22—

    Other specified disorders of amniotic fluid and membranes, second trimester, fetus 2

  • O41.8X23—

    Other specified disorders of amniotic fluid and membranes, second trimester, fetus 3

  • O41.8X24—

    Other specified disorders of amniotic fluid and membranes, second trimester, fetus 4

  • O41.8X25—

    Other specified disorders of amniotic fluid and membranes, second trimester, fetus 5

  • O41.8X29—

    Other specified disorders of amniotic fluid and membranes, second trimester, other fetus

  • O41.8X3—

    Other specified disorders of amniotic fluid and membranes, third trimester

  • O41.8X30—

    Other specified disorders of amniotic fluid and membranes, third trimester, not applicable or unspecified

  • O41.8X31—

    Other specified disorders of amniotic fluid and membranes, third trimester, fetus 1

  • O41.8X32—

    Other specified disorders of amniotic fluid and membranes, third trimester, fetus 2

  • O41.8X33—

    Other specified disorders of amniotic fluid and membranes, third trimester, fetus 3

  • O41.8X34—

    Other specified disorders of amniotic fluid and membranes, third trimester, fetus 4

  • O41.8X35—

    Other specified disorders of amniotic fluid and membranes, third trimester, fetus 5

  • O41.8X39—

    Other specified disorders of amniotic fluid and membranes, third trimester, other fetus

  • O41.8X9—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester

  • O41.8X90—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, not applicable or unspecified

  • O41.8X91—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 1

  • O41.8X92—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 2

  • O41.8X93—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 3

  • O41.8X94—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 4

  • O41.8X95—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, fetus 5

  • O41.8X99—

    Other specified disorders of amniotic fluid and membranes, unspecified trimester, other fetus

  • O41.90—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester

  • O41.90X0—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, not applicable or unspecified

  • O41.90X1—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 1

  • O41.90X2—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 2

  • O41.90X3—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 3

  • O41.90X4—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 4

  • O41.90X5—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, fetus 5

  • O41.90X9—

    Disorder of amniotic fluid and membranes, unspecified, unspecified trimester, other fetus

  • O41.91—

    Disorder of amniotic fluid and membranes, unspecified, first trimester

  • O41.91X0—

    Disorder of amniotic fluid and membranes, unspecified, first trimester, not applicable or unspecified

  • O41.91X1—

    Disorder of amniotic fluid and membranes, unspecified, first trimester, fetus 1

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