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 Codes Billable Only

Internal Codes

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O74.4|
Toxic reaction to local anesthesia during labor and delivery
O74.5|
Spinal and epidural anesthesia-induced headache during labor and delivery
O74.6|
Other complications of spinal and epidural anesthesia during labor and delivery
O74.7|
Failed or difficult intubation for anesthesia during labor and delivery
O74.8|
Other complications of anesthesia during labor and delivery
O74.9|
Complication of anesthesia during labor and delivery, unspecified
O75|
Other complications of labor and delivery, not elsewhere classified
O75.0|
Maternal distress during labor and delivery
O75.1|
Shock during or following labor and delivery
O75.2|
Pyrexia during labor, not elsewhere classified
O75.3|
Other infection during labor
O75.4|
Other complications of obstetric surgery and procedures
O75.5|
Delayed delivery after artificial rupture of membranes
O75.8|
Other specified complications of labor and delivery
O75.81|
Maternal exhaustion complicating labor and delivery
O75.82|
Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section
O75.89|
Other specified complications of labor and delivery
O75.9|
Complication of labor and delivery, unspecified
O76|
Abnormality in fetal heart rate and rhythm complicating labor and delivery
O77|
Other fetal stress complicating labor and delivery
O77.0|
Labor and delivery complicated by meconium in amniotic fluid
O77.1|
Fetal stress in labor or delivery due to drug administration
O77.8|
Labor and delivery complicated by other evidence of fetal stress
O77.9|
Labor and delivery complicated by fetal stress, unspecified
O80|
Encounter for full-term uncomplicated delivery
O82|
Encounter for cesarean delivery without indication
O85|
Puerperal sepsis
O86|
Other puerperal infections
O86.0|
Infection of obstetric surgical wound
O86.00|
Infection of obstetric surgical wound, unspecified
O86.01|
Infection of obstetric surgical wound, superficial incisional site
O86.02|
Infection of obstetric surgical wound, deep incisional site
O86.03|
Infection of obstetric surgical wound, organ and space site
O86.04|
Sepsis following an obstetrical procedure
O86.09|
Infection of obstetric surgical wound, other surgical site
O86.1|
Other infection of genital tract following delivery
O86.11|
Cervicitis following delivery
O86.12|
Endometritis following delivery
O86.13|
Vaginitis following delivery
O86.19|
Other infection of genital tract following delivery
O86.2|
Urinary tract infection following delivery
O86.20|
Urinary tract infection following delivery, unspecified
O86.21|
Infection of kidney following delivery
O86.22|
Infection of bladder following delivery
O86.29|
Other urinary tract infection following delivery
O86.4|
Pyrexia of unknown origin following delivery
O86.8|
Other specified puerperal infections
O86.81|
Puerperal septic thrombophlebitis
O86.89|
Other specified puerperal infections
O87|
Venous complications and hemorrhoids in the puerperium

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