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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  • O26.13—

    Low weight gain in pregnancy, third trimester

  • O26.2—

    Pregnancy care for patient with recurrent pregnancy loss

  • O26.20—

    Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester

  • O26.21—

    Pregnancy care for patient with recurrent pregnancy loss, first trimester

  • O26.22—

    Pregnancy care for patient with recurrent pregnancy loss, second trimester

  • O26.23—

    Pregnancy care for patient with recurrent pregnancy loss, third trimester

  • O26.3—

    Retained intrauterine contraceptive device in pregnancy

  • O26.30—

    Retained intrauterine contraceptive device in pregnancy, unspecified trimester

  • O26.31—

    Retained intrauterine contraceptive device in pregnancy, first trimester

  • O26.32—

    Retained intrauterine contraceptive device in pregnancy, second trimester

  • O26.33—

    Retained intrauterine contraceptive device in pregnancy, third trimester

  • O26.4—

    Herpes gestationis

  • O26.40—

    Herpes gestationis, unspecified trimester

  • O26.41—

    Herpes gestationis, first trimester

  • O26.42—

    Herpes gestationis, second trimester

  • O26.43—

    Herpes gestationis, third trimester

  • O26.5—

    Maternal hypotension syndrome

  • O26.50—

    Maternal hypotension syndrome, unspecified trimester

  • O26.51—

    Maternal hypotension syndrome, first trimester

  • O26.52—

    Maternal hypotension syndrome, second trimester

  • O26.53—

    Maternal hypotension syndrome, third trimester

  • O26.6—

    Liver and biliary tract disorders in pregnancy, childbirth and the puerperium

  • O26.61—

    Liver and biliary tract disorders in pregnancy

  • O26.611—

    Liver and biliary tract disorders in pregnancy, first trimester

  • O26.612—

    Liver and biliary tract disorders in pregnancy, second trimester

  • O26.613—

    Liver and biliary tract disorders in pregnancy, third trimester

  • O26.619—

    Liver and biliary tract disorders in pregnancy, unspecified trimester

  • O26.62—

    Liver and biliary tract disorders in childbirth

  • O26.63—

    Liver and biliary tract disorders in the puerperium

  • O26.64—

    Intrahepatic cholestasis of pregnancy

  • O26.641—

    Intrahepatic cholestasis of pregnancy, first trimester

  • O26.642—

    Intrahepatic cholestasis of pregnancy, second trimester

  • O26.643—

    Intrahepatic cholestasis of pregnancy, third trimester

  • O26.649—

    Intrahepatic cholestasis of pregnancy, unspecified trimester

  • O26.7—

    Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium

  • O26.71—

    Subluxation of symphysis (pubis) in pregnancy

  • O26.711—

    Subluxation of symphysis (pubis) in pregnancy, first trimester

  • O26.712—

    Subluxation of symphysis (pubis) in pregnancy, second trimester

  • O26.713—

    Subluxation of symphysis (pubis) in pregnancy, third trimester

  • O26.719—

    Subluxation of symphysis (pubis) in pregnancy, unspecified trimester

  • O26.72—

    Subluxation of symphysis (pubis) in childbirth

  • O26.73—

    Subluxation of symphysis (pubis) in the puerperium

  • O26.8—

    Other specified pregnancy related conditions

  • O26.81—

    Pregnancy related exhaustion and fatigue

  • O26.811—

    Pregnancy related exhaustion and fatigue, first trimester

  • O26.812—

    Pregnancy related exhaustion and fatigue, second trimester

  • O26.813—

    Pregnancy related exhaustion and fatigue, third trimester

  • O26.819—

    Pregnancy related exhaustion and fatigue, unspecified trimester

  • O26.82—

    Pregnancy related peripheral neuritis

  • O26.821—

    Pregnancy related peripheral neuritis, first trimester

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