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.
Internal Codes
  • O03.87|

    Sepsis following complete or unspecified spontaneous abortion

  • O03.88|

    Urinary tract infection following complete or unspecified spontaneous abortion

  • O03.89|

    Complete or unspecified spontaneous abortion with other complications

  • O03.9|

    Complete or unspecified spontaneous abortion without complication

  • O04.5|

    Genital tract and pelvic infection following (induced) termination of pregnancy

  • O04.6|

    Delayed or excessive hemorrhage following (induced) termination of pregnancy

  • O04.7|

    Embolism following (induced) termination of pregnancy

  • O04.80|

    (Induced) termination of pregnancy with unspecified complications

  • O04.81|

    Shock following (induced) termination of pregnancy

  • O04.82|

    Renal failure following (induced) termination of pregnancy

  • O04.83|

    Metabolic disorder following (induced) termination of pregnancy

  • O04.84|

    Damage to pelvic organs following (induced) termination of pregnancy

  • O04.85|

    Other venous complications following (induced) termination of pregnancy

  • O04.86|

    Cardiac arrest following (induced) termination of pregnancy

  • O04.87|

    Sepsis following (induced) termination of pregnancy

  • O04.88|

    Urinary tract infection following (induced) termination of pregnancy

  • O04.89|

    (Induced) termination of pregnancy with other complications

  • O07.0|

    Genital tract and pelvic infection following failed attempted termination of pregnancy

  • O07.1|

    Delayed or excessive hemorrhage following failed attempted termination of pregnancy

  • O07.2|

    Embolism following failed attempted termination of pregnancy

  • O07.30|

    Failed attempted termination of pregnancy with unspecified complications

  • O07.31|

    Shock following failed attempted termination of pregnancy

  • O07.32|

    Renal failure following failed attempted termination of pregnancy

  • O07.33|

    Metabolic disorder following failed attempted termination of pregnancy

  • O07.34|

    Damage to pelvic organs following failed attempted termination of pregnancy

  • O07.35|

    Other venous complications following failed attempted termination of pregnancy

  • O07.36|

    Cardiac arrest following failed attempted termination of pregnancy

  • O07.37|

    Sepsis following failed attempted termination of pregnancy

  • O07.38|

    Urinary tract infection following failed attempted termination of pregnancy

  • O07.39|

    Failed attempted termination of pregnancy with other complications

  • O07.4|

    Failed attempted termination of pregnancy without complication

  • O08.0|

    Genital tract and pelvic infection following ectopic and molar pregnancy

  • O08.1|

    Delayed or excessive hemorrhage following ectopic and molar pregnancy

  • O08.2|

    Embolism following ectopic and molar pregnancy

  • O08.3|

    Shock following ectopic and molar pregnancy

  • O08.4|

    Renal failure following ectopic and molar pregnancy

  • O08.5|

    Metabolic disorders following an ectopic and molar pregnancy

  • O08.6|

    Damage to pelvic organs and tissues following an ectopic and molar pregnancy

  • O08.7|

    Other venous complications following an ectopic and molar pregnancy

  • O08.81|

    Cardiac arrest following an ectopic and molar pregnancy

  • O08.82|

    Sepsis following ectopic and molar pregnancy

  • O08.83|

    Urinary tract infection following an ectopic and molar pregnancy

  • O08.89|

    Other complications following an ectopic and molar pregnancy

  • O08.9|

    Unspecified complication following an ectopic and molar pregnancy

  • O09.00|

    Supervision of pregnancy with history of infertility, unspecified trimester

  • O09.01|

    Supervision of pregnancy with history of infertility, first trimester

  • O09.02|

    Supervision of pregnancy with history of infertility, second trimester

  • O09.03|

    Supervision of pregnancy with history of infertility, third trimester

  • O09.10|

    Supervision of pregnancy with history of ectopic pregnancy, unspecified trimester

  • O09.11|

    Supervision of pregnancy with history of ectopic pregnancy, first trimester

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