ICD-10 Code for Pregnancy
Also indexed as (single) (uterine)
The ICD-10-CM code for pregnancy is Z33.1 — Pregnant state, incidental. This is the code the Alphabetic Index gives for pregnancy with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
Billable
Which pregnancy code should you use?
The Alphabetic Index lists 383 codes under Pregnancy. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| abdominal | O00.00 | Abdominal pregnancy without intrauterine pregnancy | |
| ampullar | O00.10 | Tubal pregnancy without intrauterine pregnancy | not billable |
| biochemical | O02.81 | Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy | |
| broad ligament | O00.80 | Other ectopic pregnancy without intrauterine pregnancy | |
| cervical | O00.41 | Cervical ectopic pregnancy without intrauterine pregnancy | |
| chemical | O02.81 | Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy | |
| complicated NOS | O26.9 | Pregnancy related conditions, unspecified | not billable |
| concealed | O09.3 | Supervision of pregnancy with insufficient antenatal care | not billable |
| cornual | O00.51 | Cornual ectopic pregnancy without intrauterine pregnancy | not billable |
| ectopic | O00.90 | Unspecified ectopic pregnancy without intrauterine pregnancy | |
| examination | Z34.9 | Encounter for supervision of normal pregnancy, unspecified | not billable |
| fallopian | O00.10 | Tubal pregnancy without intrauterine pregnancy | not billable |
| false | F45.8 | Other somatoform disorders | |
| gestational carrier | Z33.3 | Pregnant state, gestational carrier | |
| heptachorionic, hepta-amniotic | O30.83 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses | not billable |
| hexachorionic, hexa-amniotic | O30.83 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses | not billable |
| hidden | O09.3 | Supervision of pregnancy with insufficient antenatal care | not billable |
| incidental finding | Z33.1 | Pregnant state, incidental | |
| interstitial | O00.12 | Interstitial ectopic pregnancy without intrauterine pregnancy | not billable |
| intraligamentous | O00.80 | Other ectopic pregnancy without intrauterine pregnancy | |
| intramural | O00.80 | Other ectopic pregnancy without intrauterine pregnancy | |
| intraperitoneal | O00.00 | Abdominal pregnancy without intrauterine pregnancy | |
| isthmian | O00.10 | Tubal pregnancy without intrauterine pregnancy | not billable |
| mesometric | O00.80 | Other ectopic pregnancy without intrauterine pregnancy | |
| molar NEC | O02.0 | Blighted ovum and nonhydatidiform mole | |
| multiple | O30.9 | Multiple gestation, unspecified | not billable |
| mural | O00.80 | Other ectopic pregnancy without intrauterine pregnancy | |
| normal | Z34.9 | Encounter for supervision of normal pregnancy, unspecified | not billable |
| ovarian | O00.20 | Ovarian pregnancy without intrauterine pregnancy | not billable |
| pentachorionic, penta-amniotic | O30.83 | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses | not billable |
| postmature | O48.0 | Post-term pregnancy | |
| post-term | O48.0 | Post-term pregnancy | |
| prenatal care only | Z34.9 | Encounter for supervision of normal pregnancy, unspecified | not billable |
| prolonged | O48.1 | Prolonged pregnancy | |
| quadruplet | O30.20 | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs | not billable |
| triplet | O30.10 | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs | not billable |
| tubal | O00.10 | Tubal pregnancy without intrauterine pregnancy | not billable |
| twin | O30.00 | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs | not billable |
| unwanted | Z64.0 | Problems related to unwanted pregnancy |
Pregnancy abdominal
Pregnancy ampullar
| with intrauterine pregnancy | O00.11 | Tubal pregnancy with intrauterine pregnancy | not billable |
Pregnancy broad ligament
| with intrauterine pregnancy | O00.81 | Other ectopic pregnancy with intrauterine pregnancy |
Pregnancy cervical
| with intrauterine pregnancy | O00.42 | Cervical ectopic pregnancy with intrauterine pregnancy |
Pregnancy complicated by
| adverse effect anesthesia | O29.9 | Unspecified complication of anesthesia during pregnancy | not billable |
| albuminuria | O12.1 | Gestational proteinuria | not billable |
| alcohol use | O99.31 | Alcohol use complicating pregnancy, childbirth, and the puerperium | not billable |
| amnionitis | O41.12 | Chorioamnionitis | not billable |
| anaphylactoid syndrome of pregnancy | O88.01 | Obstetric air embolism in pregnancy | not billable |
| anemia | O99.01 | Anemia complicating pregnancy | not billable |
| antepartum hemorrhage | O46.9 | Antepartum hemorrhage, unspecified | not billable |
| appendicitis | O99.61 | Diseases of the digestive system complicating pregnancy | not billable |
| atrophy | O26.61 | Liver and biliary tract disorders in pregnancy | not billable |
| bariatric surgery status | O99.84 | Bariatric surgery status complicating pregnancy, childbirth and the puerperium | not billable |
| bicornis or bicornuate uterus | O34.0 | Maternal care for congenital malformation of uterus | not billable |
| biliary tract problems | O26.61 | Liver and biliary tract disorders in pregnancy | not billable |
| breech presentation | O32.1 | Maternal care for breech presentation | not billable |
| cardiovascular diseases | O99.41 | Diseases of the circulatory system complicating pregnancy | not billable |
| cerebrovascular disorders | O99.41 | Diseases of the circulatory system complicating pregnancy | not billable |
| cervical shortening | O26.87 | Cervical shortening | not billable |
| cervicitis | O23.51 | Infection of cervix in pregnancy | not billable |
| cesarean scar defect | O34.22 | Maternal care for cesarean scar defect (isthmocele) | |
| chloasma | O26.89 | Other specified pregnancy related conditions | not billable |
| cholestasis | O26.64 | Intrahepatic cholestasis of pregnancy | not billable |
| cholecystitis | O99.61 | Diseases of the digestive system complicating pregnancy | not billable |
| chorioamnionitis | O41.12 | Chorioamnionitis | not billable |
| compound presentation | O32.6 | Maternal care for compound presentation | not billable |
| conjoined twins | O30.02 | Conjoined twin pregnancy | not billable |
| connective system disorders | O99.891 | Other specified diseases and conditions complicating pregnancy | |
| contracted pelvis | O33.1 | Maternal care for disproportion due to generally contracted pelvis | |
| convulsions | O15.9 | Eclampsia, unspecified as to time period | |
| cracked nipple | O92.11 | Cracked nipple associated with pregnancy | not billable |
| cystitis | O23.1 | Infections of bladder in pregnancy | not billable |
| cystocele | O34.8 | Maternal care for other abnormalities of pelvic organs | not billable |
| death of fetus | O36.4 | Maternal care for intrauterine death | not billable |
| deciduitis | O41.14 | Placentitis | not billable |
| decreased fetal movement | O36.81 | Decreased fetal movements | not billable |
| dental problems | O99.61 | Diseases of the digestive system complicating pregnancy | not billable |
| diabetes | O24.91 | Unspecified diabetes mellitus in pregnancy | not billable |
| digestive system disorders | O99.61 | Diseases of the digestive system complicating pregnancy | not billable |
| displacement, uterus NEC | O34.59 | Maternal care for other abnormalities of gravid uterus | not billable |
| disproportion | O33.9 | Maternal care for disproportion, unspecified | |
| double uterus | O34.0 | Maternal care for congenital malformation of uterus | not billable |
| drug use | O99.32 | Drug use complicating pregnancy, childbirth, and the puerperium | not billable |
| edema | O12.0 | Gestational edema | not billable |
| endocrine diseases NEC | O99.28 | Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium | not billable |
| endometritis | O86.12 | Endometritis following delivery | |
| excessive weight gain | O26.0 | Excessive weight gain in pregnancy | not billable |
| exhaustion | O26.81 | Pregnancy related exhaustion and fatigue | not billable |
| face presentation | O32.3 | Maternal care for face, brow and chin presentation | not billable |
| failed induction of labor | O61.9 | Failed induction of labor, unspecified | |
| failed or difficult intubation for anesthesia | O29.6 | Failed or difficult intubation for anesthesia during pregnancy | not billable |
| false labor | O47.9 | False labor, unspecified | |
| fatigue | O26.81 | Pregnancy related exhaustion and fatigue | not billable |
| fatty metamorphosis of liver | O26.61 | Liver and biliary tract disorders in pregnancy | not billable |
| female genital mutilation | O34.8 | Maternal care for other abnormalities of pelvic organs | not billable |
| fibroid | O34.1 | Maternal care for benign tumor of corpus uteri | not billable |
| fissure of nipple | O92.11 | Cracked nipple associated with pregnancy | not billable |
| gallstones | O99.61 | Diseases of the digestive system complicating pregnancy | not billable |
| gastric banding status | O99.84 | Bariatric surgery status complicating pregnancy, childbirth and the puerperium | not billable |
| gastric bypass status | O99.84 | Bariatric surgery status complicating pregnancy, childbirth and the puerperium | not billable |
| genital herpes | O98.3 | Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium | not billable |
| genital tract infection | O23.9 | Unspecified genitourinary tract infection in pregnancy | not billable |
| glomerular diseases | O26.83 | Pregnancy related renal disease | not billable |
| gonorrhea | O98.21 | Gonorrhea complicating pregnancy | not billable |
| grand multiparity | O09.4 | Supervision of pregnancy with grand multiparity | not billable |
| HELLP syndrome | O14.2 | HELLP syndrome | not billable |
| hemorrhoids | O22.4 | Hemorrhoids in pregnancy | not billable |
| hepatitis | O98.41 | Viral hepatitis complicating pregnancy | not billable |
| herniation of uterus | O34.59 | Maternal care for other abnormalities of gravid uterus | not billable |
| history of in utero procedure during previous pregnancy | O09.82 | Supervision of pregnancy with history of in utero procedure during previous pregnancy | not billable |
| HIV | O98.71 | Human immunodeficiency virus [HIV] disease complicating pregnancy | not billable |
| human immunodeficiency virusdisease | O98.71 | Human immunodeficiency virus [HIV] disease complicating pregnancy | not billable |
| hydatidiform mole | O01.9 | Hydatidiform mole, unspecified | |
| hydrocephalic fetus | O33.6 | Maternal care for disproportion due to hydrocephalic fetus | not billable |
| hydrorrhea | O42.90 | Premature rupture of membranes, unspecified as to length of time between rupture and onset of labor, unspecified weeks of gestation | |
| hyperemesis | O21.0 | Mild hyperemesis gravidarum | |
| hypotension | O26.5 | Maternal hypotension syndrome | not billable |
| immune disorders NEC | O99.11 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy | not billable |
| incarceration, uterus | O34.51 | Maternal care for incarceration of gravid uterus | not billable |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources