| O10011 | Pre-existing essential hypertension complicating pregnancy, first trimester |
| O10012 | Pre-existing essential hypertension complicating pregnancy, second trimester |
| O10013 | Pre-existing essential hypertension complicating pregnancy, third trimester |
| O10111 | Pre-existing hypertensive heart disease complicating pregnancy, first trimester |
| O10112 | Pre-existing hypertensive heart disease complicating pregnancy, second trimester |
| O10113 | Pre-existing hypertensive heart disease complicating pregnancy, third trimester |
| O10211 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester |
| O10212 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester |
| O10213 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester |
| O10311 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester |
| O10312 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester |
| O10313 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester |
| O10411 | Pre-existing secondary hypertension complicating pregnancy, first trimester |
| O10412 | Pre-existing secondary hypertension complicating pregnancy, second trimester |
| O10413 | Pre-existing secondary hypertension complicating pregnancy, third trimester |
| O10911 | Unspecified pre-existing hypertension complicating pregnancy, first trimester |
| O10912 | Unspecified pre-existing hypertension complicating pregnancy, second trimester |
| O10913 | Unspecified pre-existing hypertension complicating pregnancy, third trimester |
| O111 | Pre-existing hypertension with pre-eclampsia, first trimester |
| O112 | Pre-existing hypertension with pre-eclampsia, second trimester |
| O113 | Pre-existing hypertension with pre-eclampsia, third trimester |
| O119 | Pre-existing hypertension with pre-eclampsia, unspecified trimester |
| O1200 | Gestational edema, unspecified trimester |
| O1201 | Gestational edema, first trimester |
| O1202 | Gestational edema, second trimester |
| O1203 | Gestational edema, third trimester |
| O1210 | Gestational proteinuria, unspecified trimester |
| O1211 | Gestational proteinuria, first trimester |
| O1212 | Gestational proteinuria, second trimester |
| O1213 | Gestational proteinuria, third trimester |
| O1220 | Gestational edema with proteinuria, unspecified trimester |
| O1221 | Gestational edema with proteinuria, first trimester |
| O1222 | Gestational edema with proteinuria, second trimester |
| O1223 | Gestational edema with proteinuria, third trimester |
| O1402 | Mild to moderate pre-eclampsia, second trimester |
| O1403 | Mild to moderate pre-eclampsia, third trimester |
| O1410 | Severe pre-eclampsia, unspecified trimester |
| O1412 | Severe pre-eclampsia, second trimester |
| O1413 | Severe pre-eclampsia, third trimester |
| O1420 | HELLP syndrome (HELLP), unspecified trimester |
| O1422 | HELLP syndrome (HELLP), second trimester |
| O1423 | HELLP syndrome (HELLP), third trimester |
| O1492 | Unspecified pre-eclampsia, second trimester |
| O1493 | Unspecified pre-eclampsia, third trimester |
| O1500 | Eclampsia in pregnancy, unspecified trimester |
| O1502 | Eclampsia in pregnancy, second trimester |
| O1503 | Eclampsia in pregnancy, third trimester |
| O159 | Eclampsia, unspecified as to time period |
| O161 | Unspecified maternal hypertension, first trimester |
| O162 | Unspecified maternal hypertension, second trimester |
| O163 | Unspecified maternal hypertension, third trimester |
| O210 | Mild hyperemesis gravidarum |
| O211 | Hyperemesis gravidarum with metabolic disturbance |
| O212 | Late vomiting of pregnancy |
| O218 | Other vomiting complicating pregnancy |
| O219 | Vomiting of pregnancy, unspecified |
| O2300 | Infections of kidney in pregnancy, unspecified trimester |
| O2301 | Infections of kidney in pregnancy, first trimester |
| O2302 | Infections of kidney in pregnancy, second trimester |
| O2303 | Infections of kidney in pregnancy, third trimester |
| O2310 | Infections of bladder in pregnancy, unspecified trimester |
| O2311 | Infections of bladder in pregnancy, first trimester |
| O2312 | Infections of bladder in pregnancy, second trimester |
| O2313 | Infections of bladder in pregnancy, third trimester |
| O2320 | Infections of urethra in pregnancy, unspecified trimester |
| O2321 | Infections of urethra in pregnancy, first trimester |
| O2322 | Infections of urethra in pregnancy, second trimester |
| O2323 | Infections of urethra in pregnancy, third trimester |
| O2330 | Infections of other parts of urinary tract in pregnancy, unspecified trimester |
| O2331 | Infections of other parts of urinary tract in pregnancy, first trimester |
| O2332 | Infections of other parts of urinary tract in pregnancy, second trimester |
| O2333 | Infections of other parts of urinary tract in pregnancy, third trimester |
| O2340 | Unspecified infection of urinary tract in pregnancy, unspecified trimester |
| O2341 | Unspecified infection of urinary tract in pregnancy, first trimester |
| O2342 | Unspecified infection of urinary tract in pregnancy, second trimester |
| O2343 | Unspecified infection of urinary tract in pregnancy, third trimester |
| O23511 | Infections of cervix in pregnancy, first trimester |
| O23512 | Infections of cervix in pregnancy, second trimester |
| O23513 | Infections of cervix in pregnancy, third trimester |
| O23519 | Infections of cervix in pregnancy, unspecified trimester |
| O23521 | Salpingo-oophoritis in pregnancy, first trimester |
| O23522 | Salpingo-oophoritis in pregnancy, second trimester |
| O23523 | Salpingo-oophoritis in pregnancy, third trimester |
| O23529 | Salpingo-oophoritis in pregnancy, unspecified trimester |
| O23591 | Infection of other part of genital tract in pregnancy, first trimester |
| O23592 | Infection of other part of genital tract in pregnancy, second trimester |
| O23593 | Infection of other part of genital tract in pregnancy, third trimester |
| O23599 | Infection of other part of genital tract in pregnancy, unspecified trimester |
| O2390 | Unspecified genitourinary tract infection in pregnancy, unspecified trimester |
| O2391 | Unspecified genitourinary tract infection in pregnancy, first trimester |
| O2392 | Unspecified genitourinary tract infection in pregnancy, second trimester |
| O2393 | Unspecified genitourinary tract infection in pregnancy, third trimester |
| O24011 | Pre-existing diabetes mellitus, type 1, in pregnancy, first trimester |
| O24012 | Pre-existing diabetes mellitus, type 1, in pregnancy, second trimester |
| O24013 | Pre-existing diabetes mellitus, type 1, in pregnancy, third trimester |
| O24111 | Pre-existing diabetes mellitus, type 2, in pregnancy, first trimester |
| O24112 | Pre-existing diabetes mellitus, type 2, in pregnancy, second trimester |
| O24113 | Pre-existing diabetes mellitus, type 2, in pregnancy, third trimester |
| O24311 | Unspecified pre-existing diabetes mellitus in pregnancy, first trimester |
| O24312 | Unspecified pre-existing diabetes mellitus in pregnancy, second trimester |
| O24313 | Unspecified pre-existing diabetes mellitus in pregnancy, third trimester |
| O24410 | Gestational diabetes mellitus in pregnancy, diet controlled |
| O24414 | Gestational diabetes mellitus in pregnancy, insulin controlled |
| O24419 | Gestational diabetes mellitus in pregnancy, unspecified control |
| O24811 | Other pre-existing diabetes mellitus in pregnancy, first trimester |
| O24812 | Other pre-existing diabetes mellitus in pregnancy, second trimester |
| O24813 | Other pre-existing diabetes mellitus in pregnancy, third trimester |
| O24911 | Unspecified diabetes mellitus in pregnancy, first trimester |
| O24912 | Unspecified diabetes mellitus in pregnancy, second trimester |
| O24913 | Unspecified diabetes mellitus in pregnancy, third trimester |
| O2511 | Malnutrition in pregnancy, first trimester |
| O2512 | Malnutrition in pregnancy, second trimester |
| O2513 | Malnutrition in pregnancy, third trimester |
| O2600 | Excessive weight gain in pregnancy, unspecified trimester |
| O2601 | Excessive weight gain in pregnancy, first trimester |
| O2602 | Excessive weight gain in pregnancy, second trimester |
| O2603 | Excessive weight gain in pregnancy, third trimester |
| O2610 | Low weight gain in pregnancy, unspecified trimester |
| O2611 | Low weight gain in pregnancy, first trimester |
| O2612 | Low weight gain in pregnancy, second trimester |
| O2613 | Low weight gain in pregnancy, third trimester |
| O2630 | Retained intrauterine contraceptive device in pregnancy, unspecified trimester |
| O2631 | Retained intrauterine contraceptive device in pregnancy, first trimester |
| O2632 | Retained intrauterine contraceptive device in pregnancy, second trimester |
| O2633 | Retained intrauterine contraceptive device in pregnancy, third trimester |
| O2640 | Herpes gestationis, unspecified trimester |
| O2641 | Herpes gestationis, first trimester |
| O2642 | Herpes gestationis, second trimester |
| O2643 | Herpes gestationis, third trimester |
| O26611 | Liver and biliary tract disorders in pregnancy, first trimester |
| O26612 | Liver and biliary tract disorders in pregnancy, second trimester |
| O26613 | Liver and biliary tract disorders in pregnancy, third trimester |
| O26619 | Liver and biliary tract disorders in pregnancy, unspecified trimester |
| O26711 | Subluxation of symphysis (pubis) in pregnancy, first trimester |
| O26712 | Subluxation of symphysis (pubis) in pregnancy, second trimester |
| O26713 | Subluxation of symphysis (pubis) in pregnancy, third trimester |
| O26719 | Subluxation of symphysis (pubis) in pregnancy, unspecified trimester |
| O26811 | Pregnancy related exhaustion and fatigue, first trimester |
| O26812 | Pregnancy related exhaustion and fatigue, second trimester |
| O26813 | Pregnancy related exhaustion and fatigue, third trimester |
| O26819 | Pregnancy related exhaustion and fatigue, unspecified trimester |
| O26821 | Pregnancy related peripheral neuritis, first trimester |
| O26822 | Pregnancy related peripheral neuritis, second trimester |
| O26823 | Pregnancy related peripheral neuritis, third trimester |
| O26831 | Pregnancy related renal disease, first trimester |
| O26832 | Pregnancy related renal disease, second trimester |
| O26833 | Pregnancy related renal disease, third trimester |
| O26839 | Pregnancy related renal disease, unspecified trimester |
| O2686 | Pruritic urticarial papules and plaques of pregnancy (PUPPP) |
| O26891 | Other specified pregnancy related conditions, first trimester |
| O26892 | Other specified pregnancy related conditions, second trimester |
| O26893 | Other specified pregnancy related conditions, third trimester |
| O26899 | Other specified pregnancy related conditions, unspecified trimester |
| O2691 | Pregnancy related conditions, unspecified, first trimester |
| O2692 | Pregnancy related conditions, unspecified, second trimester |
| O2693 | Pregnancy related conditions, unspecified, third trimester |
| O29011 | Aspiration pneumonitis due to anesthesia during pregnancy, first trimester |
| O29012 | Aspiration pneumonitis due to anesthesia during pregnancy, second trimester |
| O29013 | Aspiration pneumonitis due to anesthesia during pregnancy, third trimester |
| O29019 | Aspiration pneumonitis due to anesthesia during pregnancy, unspecified trimester |
| O29021 | Pressure collapse of lung due to anesthesia during pregnancy, first trimester |
| O29022 | Pressure collapse of lung due to anesthesia during pregnancy, second trimester |
| O29023 | Pressure collapse of lung due to anesthesia during pregnancy, third trimester |
| O29029 | Pressure collapse of lung due to anesthesia during pregnancy, unspecified trimester |
| O29091 | Other pulmonary complications of anesthesia during pregnancy, first trimester |
| O29092 | Other pulmonary complications of anesthesia during pregnancy, second trimester |
| O29093 | Other pulmonary complications of anesthesia during pregnancy, third trimester |
| O29099 | Other pulmonary complications of anesthesia during pregnancy, unspecified trimester |
| O29111 | Cardiac arrest due to anesthesia during pregnancy, first trimester |
| O29112 | Cardiac arrest due to anesthesia during pregnancy, second trimester |
| O29113 | Cardiac arrest due to anesthesia during pregnancy, third trimester |
| O29119 | Cardiac arrest due to anesthesia during pregnancy, unspecified trimester |
| O29121 | Cardiac failure due to anesthesia during pregnancy, first trimester |
| O29122 | Cardiac failure due to anesthesia during pregnancy, second trimester |
| O29123 | Cardiac failure due to anesthesia during pregnancy, third trimester |
| O29129 | Cardiac failure due to anesthesia during pregnancy, unspecified trimester |
| O29191 | Other cardiac complications of anesthesia during pregnancy, first trimester |
| O29192 | Other cardiac complications of anesthesia during pregnancy, second trimester |
| O29193 | Other cardiac complications of anesthesia during pregnancy, third trimester |
| O29199 | Other cardiac complications of anesthesia during pregnancy, unspecified trimester |
| O29211 | Cerebral anoxia due to anesthesia during pregnancy, first trimester |
| O29212 | Cerebral anoxia due to anesthesia during pregnancy, second trimester |
| O29213 | Cerebral anoxia due to anesthesia during pregnancy, third trimester |
| O29219 | Cerebral anoxia due to anesthesia during pregnancy, unspecified trimester |
| O29291 | Other central nervous system complications of anesthesia during pregnancy, first trimester |
| O29292 | Other central nervous system complications of anesthesia during pregnancy, second trimester |
| O29293 | Other central nervous system complications of anesthesia during pregnancy, third trimester |
| O29299 | Other central nervous system complications of anesthesia during pregnancy, unspecified trimester |
| O293X1 | Toxic reaction to local anesthesia during pregnancy, first trimester |
| O293X2 | Toxic reaction to local anesthesia during pregnancy, second trimester |
| O293X3 | Toxic reaction to local anesthesia during pregnancy, third trimester |
| O293X9 | Toxic reaction to local anesthesia during pregnancy, unspecified trimester |
| O2940 | Spinal and epidural anesthesia induced headache during pregnancy, unspecified trimester |
| O2941 | Spinal and epidural anesthesia induced headache during pregnancy, first trimester |
| O2942 | Spinal and epidural anesthesia induced headache during pregnancy, second trimester |
| O2943 | Spinal and epidural anesthesia induced headache during pregnancy, third trimester |
| O295X1 | Other complications of spinal and epidural anesthesia during pregnancy, first trimester |
| O295X2 | Other complications of spinal and epidural anesthesia during pregnancy, second trimester |
| O295X3 | Other complications of spinal and epidural anesthesia during pregnancy, third trimester |
| O295X9 | Other complications of spinal and epidural anesthesia during pregnancy, unspecified trimester |
| O2960 | Failed or difficult intubation for anesthesia during pregnancy, unspecified trimester |
| O2961 | Failed or difficult intubation for anesthesia during pregnancy, first trimester |
| O2962 | Failed or difficult intubation for anesthesia during pregnancy, second trimester |
| O2963 | Failed or difficult intubation for anesthesia during pregnancy, third trimester |
| O298X1 | Other complications of anesthesia during pregnancy, first trimester |
| O298X2 | Other complications of anesthesia during pregnancy, second trimester |
| O298X3 | Other complications of anesthesia during pregnancy, third trimester |
| O298X9 | Other complications of anesthesia during pregnancy, unspecified trimester |
| O2990 | Unspecified complication of anesthesia during pregnancy, unspecified trimester |
| O2991 | Unspecified complication of anesthesia during pregnancy, first trimester |
| O2992 | Unspecified complication of anesthesia during pregnancy, second trimester |
| O2993 | Unspecified complication of anesthesia during pregnancy, third trimester |
| O330 | Maternal care for disproportion due to deformity of maternal pelvic bones |
| O45001 | Premature separation of placenta with coagulation defect, unspecified, first trimester |
| O45002 | Premature separation of placenta with coagulation defect, unspecified, second trimester |
| O45003 | Premature separation of placenta with coagulation defect, unspecified, third trimester |
| O45009 | Premature separation of placenta with coagulation defect, unspecified, unspecified trimester |
| O45011 | Premature separation of placenta with afibrinogenemia, first trimester |
| O45012 | Premature separation of placenta with afibrinogenemia, second trimester |
| O45013 | Premature separation of placenta with afibrinogenemia, third trimester |
| O45019 | Premature separation of placenta with afibrinogenemia, unspecified trimester |
| O45021 | Premature separation of placenta with disseminated intravascular coagulation, first trimester |
| O45022 | Premature separation of placenta with disseminated intravascular coagulation, second trimester |
| O45023 | Premature separation of placenta with disseminated intravascular coagulation, third trimester |
| O45029 | Premature separation of placenta with disseminated intravascular coagulation, unspecified trimester |
| O45091 | Premature separation of placenta with other coagulation defect, first trimester |
| O45092 | Premature separation of placenta with other coagulation defect, second trimester |
| O45093 | Premature separation of placenta with other coagulation defect, third trimester |
| O45099 | Premature separation of placenta with other coagulation defect, unspecified trimester |
| O46001 | Antepartum hemorrhage with coagulation defect, unspecified, first trimester |
| O46002 | Antepartum hemorrhage with coagulation defect, unspecified, second trimester |
| O46003 | Antepartum hemorrhage with coagulation defect, unspecified, third trimester |
| O46009 | Antepartum hemorrhage with coagulation defect, unspecified, unspecified trimester |
| O46011 | Antepartum hemorrhage with afibrinogenemia, first trimester |
| O46012 | Antepartum hemorrhage with afibrinogenemia, second trimester |
| O46013 | Antepartum hemorrhage with afibrinogenemia, third trimester |
| O46019 | Antepartum hemorrhage with afibrinogenemia, unspecified trimester |
| O46021 | Antepartum hemorrhage with disseminated intravascular coagulation, first trimester |
| O46022 | Antepartum hemorrhage with disseminated intravascular coagulation, second trimester |
| O46023 | Antepartum hemorrhage with disseminated intravascular coagulation, third trimester |
| O46029 | Antepartum hemorrhage with disseminated intravascular coagulation, unspecified trimester |
| O46091 | Antepartum hemorrhage with other coagulation defect, first trimester |
| O46092 | Antepartum hemorrhage with other coagulation defect, second trimester |
| O46093 | Antepartum hemorrhage with other coagulation defect, third trimester |
| O46099 | Antepartum hemorrhage with other coagulation defect, unspecified trimester |
| O98011 | Tuberculosis complicating pregnancy, first trimester |
| O98012 | Tuberculosis complicating pregnancy, second trimester |
| O98013 | Tuberculosis complicating pregnancy, third trimester |
| O98111 | Syphilis complicating pregnancy, first trimester |
| O98112 | Syphilis complicating pregnancy, second trimester |
| O98113 | Syphilis complicating pregnancy, third trimester |
| O98211 | Gonorrhea complicating pregnancy, first trimester |
| O98212 | Gonorrhea complicating pregnancy, second trimester |
| O98213 | Gonorrhea complicating pregnancy, third trimester |
| O98311 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, first trimester |
| O98312 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, second trimester |
| O98313 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, third trimester |
| O98411 | Viral hepatitis complicating pregnancy, first trimester |
| O98412 | Viral hepatitis complicating pregnancy, second trimester |
| O98413 | Viral hepatitis complicating pregnancy, third trimester |
| O98511 | Other viral diseases complicating pregnancy, first trimester |
| O98512 | Other viral diseases complicating pregnancy, second trimester |
| O98513 | Other viral diseases complicating pregnancy, third trimester |
| O98611 | Protozoal diseases complicating pregnancy, first trimester |
| O98612 | Protozoal diseases complicating pregnancy, second trimester |
| O98613 | Protozoal diseases complicating pregnancy, third trimester |
| O98711 | Human immunodeficiency virus [HIV] disease complicating pregnancy, first trimester |
| O98712 | Human immunodeficiency virus [HIV] disease complicating pregnancy, second trimester |
| O98713 | Human immunodeficiency virus [HIV] disease complicating pregnancy, third trimester |
| O98811 | Other maternal infectious and parasitic diseases complicating pregnancy, first trimester |
| O98812 | Other maternal infectious and parasitic diseases complicating pregnancy, second trimester |
| O98813 | Other maternal infectious and parasitic diseases complicating pregnancy, third trimester |
| O98911 | Unspecified maternal infectious and parasitic disease complicating pregnancy, first trimester |
| O98912 | Unspecified maternal infectious and parasitic disease complicating pregnancy, second trimester |
| O98913 | Unspecified maternal infectious and parasitic disease complicating pregnancy, third trimester |
| O99011 | Anemia complicating pregnancy, first trimester |
| O99012 | Anemia complicating pregnancy, second trimester |
| O99013 | Anemia complicating pregnancy, third trimester |
| O99281 | Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester |
| O99282 | Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester |
| O99283 | Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester |
| O99311 | Alcohol use complicating pregnancy, first trimester |
| O99312 | Alcohol use complicating pregnancy, second trimester |
| O99313 | Alcohol use complicating pregnancy, third trimester |
| O99321 | Drug use complicating pregnancy, first trimester |
| O99322 | Drug use complicating pregnancy, second trimester |
| O99323 | Drug use complicating pregnancy, third trimester |
| O99341 | Other mental disorders complicating pregnancy, first trimester |
| O99342 | Other mental disorders complicating pregnancy, second trimester |
| O99343 | Other mental disorders complicating pregnancy, third trimester |
| O99350 | Diseases of the nervous system complicating pregnancy, unspecified trimester |
| O99351 | Diseases of the nervous system complicating pregnancy, first trimester |
| O99352 | Diseases of the nervous system complicating pregnancy, second trimester |
| O99353 | Diseases of the nervous system complicating pregnancy, third trimester |
| O99411 | Diseases of the circulatory system complicating pregnancy, first trimester |
| O99412 | Diseases of the circulatory system complicating pregnancy, second trimester |
| O99413 | Diseases of the circulatory system complicating pregnancy, third trimester |
| O99511 | Diseases of the respiratory system complicating pregnancy, first trimester |
| O99512 | Diseases of the respiratory system complicating pregnancy, second trimester |
| O99513 | Diseases of the respiratory system complicating pregnancy, third trimester |
| O99611 | Diseases of the digestive system complicating pregnancy, first trimester |
| O99612 | Diseases of the digestive system complicating pregnancy, second trimester |
| O99613 | Diseases of the digestive system complicating pregnancy, third trimester |
| O99711 | Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester |
| O99712 | Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester |
| O99713 | Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester |
| O99810 | Abnormal glucose complicating pregnancy |
| O99820 | Streptococcus B carrier state complicating pregnancy |
| O99830 | Other infection carrier state complicating pregnancy |
| O9989 | Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium |
| O9A111 | Malignant neoplasm complicating pregnancy, first trimester |
| O9A112 | Malignant neoplasm complicating pregnancy, second trimester |
| O9A113 | Malignant neoplasm complicating pregnancy, third trimester |
| O9A211 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, first trimester |
| O9A212 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, second trimester |
| O9A213 | Injury, poisoning and certain other consequences of external causes complicating pregnancy, third trimester |
| O9A311 | Physical abuse complicating pregnancy, first trimester |
| O9A312 | Physical abuse complicating pregnancy, second trimester |
| O9A313 | Physical abuse complicating pregnancy, third trimester |
| O9A411 | Sexual abuse complicating pregnancy, first trimester |
| O9A412 | Sexual abuse complicating pregnancy, second trimester |
| O9A413 | Sexual abuse complicating pregnancy, third trimester |
| O9A511 | Psychological abuse complicating pregnancy, first trimester |
| O9A512 | Psychological abuse complicating pregnancy, second trimester |
| O9A513 | Psychological abuse complicating pregnancy, third trimester |
| O10011 | Pre-existing essential hypertension complicating pregnancy, first trimester |
| O10012 | Pre-existing essential hypertension complicating pregnancy, second trimester |
| O10013 | Pre-existing essential hypertension complicating pregnancy, third trimester |
| O10111 | Pre-existing hypertensive heart disease complicating pregnancy, first trimester |
| O10112 | Pre-existing hypertensive heart disease complicating pregnancy, second trimester |
| O10113 | Pre-existing hypertensive heart disease complicating pregnancy, third trimester |
| O10211 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, first trimester |
| O10212 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, second trimester |
| O10213 | Pre-existing hypertensive chronic kidney disease complicating pregnancy, third trimester |
| O10311 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, first trimester |
| O10312 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, second trimester |
| O10313 | Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, third trimester |
| O10411 | Pre-existing secondary hypertension complicating pregnancy, first trimester |
| O10412 | Pre-existing secondary hypertension complicating pregnancy, second trimester |
| O10413 | Pre-existing secondary hypertension complicating pregnancy, third trimester |
| O10911 | Unspecified pre-existing hypertension complicating pregnancy, first trimester |
| O10912 | Unspecified pre-existing hypertension complicating pregnancy, second trimester |
| O10913 | Unspecified pre-existing hypertension complicating pregnancy, third trimester |
| O111 | Pre-existing hypertension with pre-eclampsia, first trimester |
| O112 | Pre-existing hypertension with pre-eclampsia, second trimester |
| O113 | Pre-existing hypertension with pre-eclampsia, third trimester |
| O119 | Pre-existing hypertension with pre-eclampsia, unspecified trimester |
| O1200 | Gestational edema, unspecified trimester |
| O1201 | Gestational edema, first trimester |
| O1202 | Gestational edema, second trimester |
| O1203 | Gestational edema, third trimester |
| O1210 | Gestational proteinuria, unspecified trimester |
| O1211 | Gestational proteinuria, first trimester |
| O1212 | Gestational proteinuria, second trimester |
| O1213 | Gestational proteinuria, third trimester |
| O1220 | Gestational edema with proteinuria, unspecified trimester |
| O1221 | Gestational edema with proteinuria, first trimester |
| O1222 | Gestational edema with proteinuria, second trimester |
| O1223 | Gestational edema with proteinuria, third trimester |
| O1402 | Mild to moderate pre-eclampsia, second trimester |
| O1403 | Mild to moderate pre-eclampsia, third trimester |
| O1410 | Severe pre-eclampsia, unspecified trimester |
| O1412 | Severe pre-eclampsia, second trimester |
| O1413 | Severe pre-eclampsia, third trimester |
| O1420 | HELLP syndrome (HELLP), unspecified trimester |
| O1422 | HELLP syndrome (HELLP), second trimester |
| O1423 | HELLP syndrome (HELLP), third trimester |
| O1492 | Unspecified pre-eclampsia, second trimester |
| O1493 | Unspecified pre-eclampsia, third trimester |
| O1500 | Eclampsia in pregnancy, unspecified trimester |
| O1502 | Eclampsia in pregnancy, second trimester |
| O1503 | Eclampsia in pregnancy, third trimester |
| O159 | Eclampsia, unspecified as to time period |
| O161 | Unspecified maternal hypertension, first trimester |
| O162 | Unspecified maternal hypertension, second trimester |
| O163 | Unspecified maternal hypertension, third trimester |
| O210 | Mild hyperemesis gravidarum |
| O211 | Hyperemesis gravidarum with metabolic disturbance |
| O212 | Late vomiting of pregnancy |
| O218 | Other vomiting complicating pregnancy |
| O219 | Vomiting of pregnancy, unspecified |
| O2300 | Infections of kidney in pregnancy, unspecified trimester |
| O2301 | Infections of kidney in pregnancy, first trimester |
| O2302 | Infections of kidney in pregnancy, second trimester |
| O2303 | Infections of kidney in pregnancy, third trimester |
| O2310 | Infections of bladder in pregnancy, unspecified trimester |
| O2311 | Infections of bladder in pregnancy, first trimester |
| O2312 | Infections of bladder in pregnancy, second trimester |
| O2313 | Infections of bladder in pregnancy, third trimester |
| O2320 | Infections of urethra in pregnancy, unspecified trimester |
| O2321 | Infections of urethra in pregnancy, first trimester |
| O2322 | Infections of urethra in pregnancy, second trimester |
| O2323 | Infections of urethra in pregnancy, third trimester |
| O2330 | Infections of other parts of urinary tract in pregnancy, unspecified trimester |
| O2331 | Infections of other parts of urinary tract in pregnancy, first trimester |