| O00 | Ectopic pregnancy |
| O00.0 | Abdominal pregnancy |
| O00.00 | Abdominal pregnancy without intrauterine pregnancy |
| O00.01 | Abdominal pregnancy with intrauterine pregnancy |
| O00.1 | Tubal pregnancy |
| O00.10 | Tubal pregnancy without 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 |
| O00.11 | Tubal pregnancy with 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 |
| O00.2 | Ovarian pregnancy |
| O00.20 | Ovarian pregnancy without 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 |
| O00.21 | Ovarian pregnancy with 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 |
| O00.8 | Other ectopic pregnancy |
| O00.80 | Other ectopic pregnancy without intrauterine pregnancy |
| O00.81 | Other ectopic pregnancy with intrauterine pregnancy |
| O00.9 | Ectopic pregnancy, unspecified |
| O00.90 | Unspecified ectopic pregnancy without intrauterine pregnancy |
| O00.91 | Unspecified ectopic pregnancy with intrauterine pregnancy |
| O01 | Hydatidiform mole |
| O01.0 | Classical hydatidiform mole |
| O01.1 | Incomplete and partial hydatidiform mole |
| O01.9 | Hydatidiform mole, unspecified |
| O02 | Other abnormal products of conception |
| O02.0 | Blighted ovum and nonhydatidiform mole |
| O02.1 | Missed abortion |
| O02.8 | Other specified abnormal products of conception |
| 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 | Spontaneous abortion |
| 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 |
| O03.3 | Other and unspecified complications 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 |
| O03.8 | Other and unspecified complications 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 |
| 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 | Complications following (induced) termination of pregnancy |
| 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 |
| O04.8 | (Induced) termination of pregnancy with other and unspecified complications |
| 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 | Failed attempted termination of pregnancy |
| 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 |
| O07.3 | Failed attempted termination of pregnancy with other and unspecified complications |
| 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 | Complications following ectopic and molar pregnancy |
| 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 |
| O08.8 | Other 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 | Supervision of high risk pregnancy |
| O09.0 | Supervision of pregnancy with history of infertility |
| 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 |
| O09.1 | Supervision of pregnancy with history of ectopic pregnancy |
| O09.10 | Supervision of pregnancy with history of ectopic pregnancy, unspecified trimester |
| O09.11 | Supervision of pregnancy with history of ectopic pregnancy, first trimester |
| O09.12 | Supervision of pregnancy with history of ectopic pregnancy, second trimester |
| O09.13 | Supervision of pregnancy with history of ectopic pregnancy, third trimester |
| O09.2 | Supervision of pregnancy with other poor reproductive or obstetric history |
| O09.21 | Supervision of pregnancy with history of pre-term labor |
| O09.211 | Supervision of pregnancy with history of pre-term labor, first trimester |
| O09.212 | Supervision of pregnancy with history of pre-term labor, second trimester |
| O09.213 | Supervision of pregnancy with history of pre-term labor, third trimester |
| O09.219 | Supervision of pregnancy with history of pre-term labor, unspecified trimester |
| O09.29 | Supervision of pregnancy with other poor reproductive or obstetric history |
| O09.291 | Supervision of pregnancy with other poor reproductive or obstetric history, first trimester |
| O09.292 | Supervision of pregnancy with other poor reproductive or obstetric history, second trimester |
| O09.293 | Supervision of pregnancy with other poor reproductive or obstetric history, third trimester |
| O09.299 | Supervision of pregnancy with other poor reproductive or obstetric history, unspecified trimester |
| O09.3 | Supervision of pregnancy with insufficient antenatal care |
| O09.30 | Supervision of pregnancy with insufficient antenatal care, unspecified trimester |
| O09.31 | Supervision of pregnancy with insufficient antenatal care, first trimester |
| O09.32 | Supervision of pregnancy with insufficient antenatal care, second trimester |
| O09.33 | Supervision of pregnancy with insufficient antenatal care, third trimester |
| O09.4 | Supervision of pregnancy with grand multiparity |
| O09.40 | Supervision of pregnancy with grand multiparity, unspecified trimester |
| O09.41 | Supervision of pregnancy with grand multiparity, first trimester |
| O09.42 | Supervision of pregnancy with grand multiparity, second trimester |
| O09.43 | Supervision of pregnancy with grand multiparity, third trimester |
| O09.5 | Supervision of elderly primigravida and multigravida |
| O09.51 | Supervision of elderly primigravida |
| O09.511 | Supervision of elderly primigravida, first trimester |
| O09.512 | Supervision of elderly primigravida, second trimester |
| O09.513 | Supervision of elderly primigravida, third trimester |
| O09.519 | Supervision of elderly primigravida, unspecified trimester |
| O09.52 | Supervision of elderly multigravida |
| O09.521 | Supervision of elderly multigravida, first trimester |
| O09.522 | Supervision of elderly multigravida, second trimester |
| O09.523 | Supervision of elderly multigravida, third trimester |
| O09.529 | Supervision of elderly multigravida, unspecified trimester |
| O09.6 | Supervision of young primigravida and multigravida |
| O09.61 | Supervision of young primigravida |
| O09.611 | Supervision of young primigravida, first trimester |
| O09.612 | Supervision of young primigravida, second trimester |
| O09.613 | Supervision of young primigravida, third trimester |
| O09.619 | Supervision of young primigravida, unspecified trimester |
| O09.62 | Supervision of young multigravida |
| O09.621 | Supervision of young multigravida, first trimester |
| O09.622 | Supervision of young multigravida, second trimester |
| O09.623 | Supervision of young multigravida, third trimester |
| O09.629 | Supervision of young multigravida, unspecified trimester |
| O09.7 | Supervision of high risk pregnancy due to social problems |
| O09.70 | Supervision of high risk pregnancy due to social problems, unspecified trimester |
| O09.71 | Supervision of high risk pregnancy due to social problems, first trimester |
| O09.72 | Supervision of high risk pregnancy due to social problems, second trimester |
| O09.73 | Supervision of high risk pregnancy due to social problems, third trimester |
| O09.8 | Supervision of other high risk pregnancies |
| O09.81 | Supervision of pregnancy resulting from assisted reproductive technology |
| O09.811 | Supervision of pregnancy resulting from assisted reproductive technology, first trimester |
| O09.812 | Supervision of pregnancy resulting from assisted reproductive technology, second trimester |
| O09.813 | Supervision of pregnancy resulting from assisted reproductive technology, third trimester |
| O09.819 | Supervision of pregnancy resulting from assisted reproductive technology, unspecified trimester |
| O09.82 | Supervision of pregnancy with history of in utero procedure during previous pregnancy |
| O09.821 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, first trimester |
| O09.822 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, second trimester |
| O09.823 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, third trimester |
| O09.829 | Supervision of pregnancy with history of in utero procedure during previous pregnancy, unspecified trimester |
| O09.89 | Supervision of other high risk pregnancies |
| O09.891 | Supervision of other high risk pregnancies, first trimester |
| O09.892 | Supervision of other high risk pregnancies, second trimester |
| O09.893 | Supervision of other high risk pregnancies, third trimester |
| O09.899 | Supervision of other high risk pregnancies, unspecified trimester |
| O09.9 | Supervision of high risk pregnancy, unspecified |
| O09.90 | Supervision of high risk pregnancy, unspecified, unspecified trimester |
| O09.91 | Supervision of high risk pregnancy, unspecified, first trimester |
| O09.92 | Supervision of high risk pregnancy, unspecified, second trimester |
| O09.93 | Supervision of high risk pregnancy, unspecified, third trimester |