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

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Internal Codes

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O00.00|
Abdominal pregnancy without intrauterine pregnancy
O00.01|
Abdominal pregnancy with intrauterine pregnancy
O00.101|
Right tubal pregnancy without intrauterine pregnancy
O00.102|
Left tubal pregnancy without intrauterine pregnancy
O00.109|
Unspecified tubal pregnancy without intrauterine pregnancy
O00.111|
Right tubal pregnancy with intrauterine pregnancy
O00.112|
Left tubal pregnancy with intrauterine pregnancy
O00.119|
Unspecified tubal pregnancy with intrauterine pregnancy
O00.201|
Right ovarian pregnancy without intrauterine pregnancy
O00.202|
Left ovarian pregnancy without intrauterine pregnancy
O00.209|
Unspecified ovarian pregnancy without intrauterine pregnancy
O00.211|
Right ovarian pregnancy with intrauterine pregnancy
O00.212|
Left ovarian pregnancy with intrauterine pregnancy
O00.219|
Unspecified ovarian pregnancy with intrauterine pregnancy
O00.80|
Other ectopic pregnancy without intrauterine pregnancy
O00.81|
Other ectopic pregnancy with intrauterine pregnancy
O00.90|
Unspecified ectopic pregnancy without intrauterine pregnancy
O00.91|
Unspecified ectopic pregnancy with intrauterine pregnancy
O01.0|
Classical hydatidiform mole
O01.1|
Incomplete and partial hydatidiform mole
O01.9|
Hydatidiform mole, unspecified
O02.0|
Blighted ovum and nonhydatidiform mole
O02.1|
Missed abortion
O02.81|
Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy
O02.89|
Other abnormal products of conception
O02.9|
Abnormal product of conception, unspecified
O03.0|
Genital tract and pelvic infection following incomplete spontaneous abortion
O03.1|
Delayed or excessive hemorrhage following incomplete spontaneous abortion
O03.2|
Embolism following incomplete spontaneous abortion
O03.30|
Unspecified complication following incomplete spontaneous abortion
O03.31|
Shock following incomplete spontaneous abortion
O03.32|
Renal failure following incomplete spontaneous abortion
O03.33|
Metabolic disorder following incomplete spontaneous abortion
O03.34|
Damage to pelvic organs following incomplete spontaneous abortion
O03.35|
Other venous complications following incomplete spontaneous abortion
O03.36|
Cardiac arrest following incomplete spontaneous abortion
O03.37|
Sepsis following incomplete spontaneous abortion
O03.38|
Urinary tract infection following incomplete spontaneous abortion
O03.39|
Incomplete spontaneous abortion with other complications
O03.4|
Incomplete spontaneous abortion without complication
O03.5|
Genital tract and pelvic infection following complete or unspecified spontaneous abortion
O03.6|
Delayed or excessive hemorrhage following complete or unspecified spontaneous abortion
O03.7|
Embolism following complete or unspecified spontaneous abortion
O03.80|
Unspecified complication following complete or unspecified spontaneous abortion
O03.81|
Shock following complete or unspecified spontaneous abortion
O03.82|
Renal failure following complete or unspecified spontaneous abortion
O03.83|
Metabolic disorder following complete or unspecified spontaneous abortion
O03.84|
Damage to pelvic organs following complete or unspecified spontaneous abortion
O03.85|
Other venous complications following complete or unspecified spontaneous abortion
O03.86|
Cardiac arrest following complete or unspecified spontaneous abortion

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