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
  • O64.9XX9|

    Obstructed labor due to malposition and malpresentation, unspecified, other fetus

  • O65|

    Obstructed labor due to maternal pelvic abnormality

  • O65.0|

    Obstructed labor due to deformed pelvis

  • O65.1|

    Obstructed labor due to generally contracted pelvis

  • O65.2|

    Obstructed labor due to pelvic inlet contraction

  • O65.3|

    Obstructed labor due to pelvic outlet and mid-cavity contraction

  • O65.4|

    Obstructed labor due to fetopelvic disproportion, unspecified

  • O65.5|

    Obstructed labor due to abnormality of maternal pelvic organs

  • O65.8|

    Obstructed labor due to other maternal pelvic abnormalities

  • O65.9|

    Obstructed labor due to maternal pelvic abnormality, unspecified

  • O66|

    Other obstructed labor

  • O66.0|

    Obstructed labor due to shoulder dystocia

  • O66.1|

    Obstructed labor due to locked twins

  • O66.2|

    Obstructed labor due to unusually large fetus

  • O66.3|

    Obstructed labor due to other abnormalities of fetus

  • O66.4|

    Failed trial of labor

  • O66.40|

    Failed trial of labor, unspecified

  • O66.41|

    Failed attempted vaginal birth after previous cesarean delivery

  • O66.5|

    Attempted application of vacuum extractor and forceps

  • O66.6|

    Obstructed labor due to other multiple fetuses

  • O66.8|

    Other specified obstructed labor

  • O66.9|

    Obstructed labor, unspecified

  • O67|

    Labor and delivery complicated by intrapartum hemorrhage, not elsewhere classified

  • O67.0|

    Intrapartum hemorrhage with coagulation defect

  • O67.8|

    Other intrapartum hemorrhage

  • O67.9|

    Intrapartum hemorrhage, unspecified

  • O68|

    Labor and delivery complicated by abnormality of fetal acid-base balance

  • O69|

    Labor and delivery complicated by umbilical cord complications

  • O69.0|

    Labor and delivery complicated by prolapse of cord

  • O69.0XX0|

    Labor and delivery complicated by prolapse of cord, not applicable or unspecified

  • O69.0XX1|

    Labor and delivery complicated by prolapse of cord, fetus 1

  • O69.0XX2|

    Labor and delivery complicated by prolapse of cord, fetus 2

  • O69.0XX3|

    Labor and delivery complicated by prolapse of cord, fetus 3

  • O69.0XX4|

    Labor and delivery complicated by prolapse of cord, fetus 4

  • O69.0XX5|

    Labor and delivery complicated by prolapse of cord, fetus 5

  • O69.0XX9|

    Labor and delivery complicated by prolapse of cord, other fetus

  • O69.1|

    Labor and delivery complicated by cord around neck, with compression

  • O69.1XX0|

    Labor and delivery complicated by cord around neck, with compression, not applicable or unspecified

  • O69.1XX1|

    Labor and delivery complicated by cord around neck, with compression, fetus 1

  • O69.1XX2|

    Labor and delivery complicated by cord around neck, with compression, fetus 2

  • O69.1XX3|

    Labor and delivery complicated by cord around neck, with compression, fetus 3

  • O69.1XX4|

    Labor and delivery complicated by cord around neck, with compression, fetus 4

  • O69.1XX5|

    Labor and delivery complicated by cord around neck, with compression, fetus 5

  • O69.1XX9|

    Labor and delivery complicated by cord around neck, with compression, other fetus

  • O69.2|

    Labor and delivery complicated by other cord entanglement, with compression

  • O69.2XX0|

    Labor and delivery complicated by other cord entanglement, with compression, not applicable or unspecified

  • O69.2XX1|

    Labor and delivery complicated by other cord entanglement, with compression, fetus 1

  • O69.2XX2|

    Labor and delivery complicated by other cord entanglement, with compression, fetus 2

  • O69.2XX3|

    Labor and delivery complicated by other cord entanglement, with compression, fetus 3

  • O69.2XX4|

    Labor and delivery complicated by other cord entanglement, with compression, fetus 4

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