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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  • O46.099—

    Antepartum hemorrhage with other coagulation defect, unspecified trimester

  • O46.8X1—

    Other antepartum hemorrhage, first trimester

  • O46.8X2—

    Other antepartum hemorrhage, second trimester

  • O46.8X3—

    Other antepartum hemorrhage, third trimester

  • O46.8X9—

    Other antepartum hemorrhage, unspecified trimester

  • O46.90—

    Antepartum hemorrhage, unspecified, unspecified trimester

  • O46.91—

    Antepartum hemorrhage, unspecified, first trimester

  • O46.92—

    Antepartum hemorrhage, unspecified, second trimester

  • O46.93—

    Antepartum hemorrhage, unspecified, third trimester

  • O47.00—

    False labor before 37 completed weeks of gestation, unspecified trimester

  • O47.02—

    False labor before 37 completed weeks of gestation, second trimester

  • O47.03—

    False labor before 37 completed weeks of gestation, third trimester

  • O47.1—

    False labor at or after 37 completed weeks of gestation

  • O47.9—

    False labor, unspecified

  • O48.0—

    Post-term pregnancy

  • O48.1—

    Prolonged pregnancy

  • O60.00—

    Preterm labor without delivery, unspecified trimester

  • O60.02—

    Preterm labor without delivery, second trimester

  • O60.03—

    Preterm labor without delivery, third trimester

  • O60.10—

    Preterm labor with preterm delivery, unspecified trimester

  • O60.10X0—

    Preterm labor with preterm delivery, unspecified trimester, not applicable or unspecified

  • O60.10X1—

    Preterm labor with preterm delivery, unspecified trimester, fetus 1

  • O60.10X2—

    Preterm labor with preterm delivery, unspecified trimester, fetus 2

  • O60.10X3—

    Preterm labor with preterm delivery, unspecified trimester, fetus 3

  • O60.10X4—

    Preterm labor with preterm delivery, unspecified trimester, fetus 4

  • O60.10X5—

    Preterm labor with preterm delivery, unspecified trimester, fetus 5

  • O60.10X9—

    Preterm labor with preterm delivery, unspecified trimester, other fetus

  • O60.12—

    Preterm labor second trimester with preterm delivery second trimester

  • O60.12X0—

    Preterm labor second trimester with preterm delivery second trimester, not applicable or unspecified

  • O60.12X1—

    Preterm labor second trimester with preterm delivery second trimester, fetus 1

  • O60.12X2—

    Preterm labor second trimester with preterm delivery second trimester, fetus 2

  • O60.12X3—

    Preterm labor second trimester with preterm delivery second trimester, fetus 3

  • O60.12X4—

    Preterm labor second trimester with preterm delivery second trimester, fetus 4

  • O60.12X5—

    Preterm labor second trimester with preterm delivery second trimester, fetus 5

  • O60.12X9—

    Preterm labor second trimester with preterm delivery second trimester, other fetus

  • O60.13—

    Preterm labor second trimester with preterm delivery third trimester

  • O60.13X0—

    Preterm labor second trimester with preterm delivery third trimester, not applicable or unspecified

  • O60.13X1—

    Preterm labor second trimester with preterm delivery third trimester, fetus 1

  • O60.13X2—

    Preterm labor second trimester with preterm delivery third trimester, fetus 2

  • O60.13X3—

    Preterm labor second trimester with preterm delivery third trimester, fetus 3

  • O60.13X4—

    Preterm labor second trimester with preterm delivery third trimester, fetus 4

  • O60.13X5—

    Preterm labor second trimester with preterm delivery third trimester, fetus 5

  • O60.13X9—

    Preterm labor second trimester with preterm delivery third trimester, other fetus

  • O60.14—

    Preterm labor third trimester with preterm delivery third trimester

  • O60.14X0—

    Preterm labor third trimester with preterm delivery third trimester, not applicable or unspecified

  • O60.14X1—

    Preterm labor third trimester with preterm delivery third trimester, fetus 1

  • O60.14X2—

    Preterm labor third trimester with preterm delivery third trimester, fetus 2

  • O60.14X3—

    Preterm labor third trimester with preterm delivery third trimester, fetus 3

  • O60.14X4—

    Preterm labor third trimester with preterm delivery third trimester, fetus 4

  • O60.14X5—

    Preterm labor third trimester with preterm delivery third trimester, fetus 5

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