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 | O00.10Not billable | Tubal pregnancy without intrauterine pregnancy |
| 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 | O26.9Not billable | Pregnancy related conditions, unspecified |
| concealed | O09.3Not billable | Supervision of pregnancy with insufficient antenatal care |
| cornual | O00.51Not billable | Cornual ectopic pregnancy without intrauterine pregnancy |
| ectopic | O00.90 | Unspecified ectopic pregnancy without intrauterine pregnancy |
| examination | Z34.9Not billable | Encounter for supervision of normal pregnancy, unspecified |
| fallopian | O00.10Not billable | Tubal pregnancy without intrauterine pregnancy |
| false | F45.8 | Other somatoform disorders |
| gestational carrier | Z33.3 | Pregnant state, gestational carrier |
| heptachorionic, hepta-amniotic | O30.83Not billable | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses |
| hexachorionic, hexa-amniotic | O30.83Not billable | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses |
| hidden | O09.3Not billable | Supervision of pregnancy with insufficient antenatal care |
| incidental finding | Z33.1 | Pregnant state, incidental |
| interstitial | O00.12Not billable | Interstitial ectopic pregnancy without intrauterine pregnancy |
| 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 | O00.10Not billable | Tubal pregnancy without intrauterine pregnancy |
| mesometric | O00.80 | Other ectopic pregnancy without intrauterine pregnancy |
| molar NEC | O02.0 | Blighted ovum and nonhydatidiform mole |
| multiple | O30.9Not billable | Multiple gestation, unspecified |
| mural | O00.80 | Other ectopic pregnancy without intrauterine pregnancy |
| normal | Z34.9Not billable | Encounter for supervision of normal pregnancy, unspecified |
| ovarian | O00.20Not billable | Ovarian pregnancy without intrauterine pregnancy |
| pentachorionic, penta-amniotic | O30.83Not billable | Other specified multiple gestation, number of chorions and amnions are both equal to the number of fetuses |
| postmature | O48.0 | Post-term pregnancy |
| post-term | O48.0 | Post-term pregnancy |
| prenatal care only | Z34.9Not billable | Encounter for supervision of normal pregnancy, unspecified |
| prolonged | O48.1 | Prolonged pregnancy |
| quadruplet | O30.20Not billable | Quadruplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| triplet | O30.10Not billable | Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| tubal | O00.10Not billable | Tubal pregnancy without intrauterine pregnancy |
| twin | O30.00Not billable | Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs |
| unwanted | Z64.0 | Problems related to unwanted pregnancy |
Pregnancy abdominal
Pregnancy ampullar
| with intrauterine pregnancy | O00.11Not billable | Tubal pregnancy with intrauterine pregnancy |
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 | O29.9Not billable | Unspecified complication of anesthesia during pregnancy |
| albuminuria | O12.1Not billable | Gestational proteinuria |
| alcohol use | O99.31Not billable | Alcohol use complicating pregnancy, childbirth, and the puerperium |
| amnionitis | O41.12Not billable | Chorioamnionitis |
| anaphylactoid syndrome of pregnancy | O88.01Not billable | Obstetric air embolism in pregnancy |
| anemia | O99.01Not billable | Anemia complicating pregnancy |
| antepartum hemorrhage | O46.9Not billable | Antepartum hemorrhage, unspecified |
| appendicitis | O99.61Not billable | Diseases of the digestive system complicating pregnancy |
| atrophy | O26.61Not billable | Liver and biliary tract disorders in pregnancy |
| bariatric surgery status | O99.84Not billable | Bariatric surgery status complicating pregnancy, childbirth and the puerperium |
| bicornis or bicornuate uterus | O34.0Not billable | Maternal care for congenital malformation of uterus |
| biliary tract problems | O26.61Not billable | Liver and biliary tract disorders in pregnancy |
| breech presentation | O32.1Not billable | Maternal care for breech presentation |
| cardiovascular diseases | O99.41Not billable | Diseases of the circulatory system complicating pregnancy |
| cerebrovascular disorders | O99.41Not billable | Diseases of the circulatory system complicating pregnancy |
| cervical shortening | O26.87Not billable | Cervical shortening |
| cervicitis | O23.51Not billable | Infection of cervix in pregnancy |
| cesarean scar defect | O34.22 | Maternal care for cesarean scar defect (isthmocele) |
| chloasma | O26.89Not billable | Other specified pregnancy related conditions |
| cholestasis | O26.64Not billable | Intrahepatic cholestasis of pregnancy |
| cholecystitis | O99.61Not billable | Diseases of the digestive system complicating pregnancy |
| chorioamnionitis | O41.12Not billable | Chorioamnionitis |
| compound presentation | O32.6Not billable | Maternal care for compound presentation |
| conjoined twins | O30.02Not billable | Conjoined twin pregnancy |
| 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 | O92.11Not billable | Cracked nipple associated with pregnancy |
| cystitis | O23.1Not billable | Infections of bladder in pregnancy |
| cystocele | O34.8Not billable | Maternal care for other abnormalities of pelvic organs |
| death of fetus | O36.4Not billable | Maternal care for intrauterine death |
| deciduitis | O41.14Not billable | Placentitis |
| decreased fetal movement | O36.81Not billable | Decreased fetal movements |
| dental problems | O99.61Not billable | Diseases of the digestive system complicating pregnancy |
| diabetes | O24.91Not billable | Unspecified diabetes mellitus in pregnancy |
| digestive system disorders | O99.61Not billable | Diseases of the digestive system complicating pregnancy |
| displacement, uterus NEC | O34.59Not billable | Maternal care for other abnormalities of gravid uterus |
| disproportion | O33.9 | Maternal care for disproportion, unspecified |
| double uterus | O34.0Not billable | Maternal care for congenital malformation of uterus |
| drug use | O99.32Not billable | Drug use complicating pregnancy, childbirth, and the puerperium |
| edema | O12.0Not billable | Gestational edema |
| endocrine diseases NEC | O99.28Not billable | Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium |
| endometritis | O86.12 | Endometritis following delivery |
| excessive weight gain | O26.0Not billable | Excessive weight gain in pregnancy |
| exhaustion | O26.81Not billable | Pregnancy related exhaustion and fatigue |
| face presentation | O32.3Not billable | Maternal care for face, brow and chin presentation |
| failed induction of labor | O61.9 | Failed induction of labor, unspecified |
| failed or difficult intubation for anesthesia | O29.6Not billable | Failed or difficult intubation for anesthesia during pregnancy |
| false labor | O47.9 | False labor, unspecified |
| fatigue | O26.81Not billable | Pregnancy related exhaustion and fatigue |
| fatty metamorphosis of liver | O26.61Not billable | Liver and biliary tract disorders in pregnancy |
| female genital mutilation | O34.8Not billable | Maternal care for other abnormalities of pelvic organs |
| fibroid | O34.1Not billable | Maternal care for benign tumor of corpus uteri |
| fissure of nipple | O92.11Not billable | Cracked nipple associated with pregnancy |
| gallstones | O99.61Not billable | Diseases of the digestive system complicating pregnancy |
| gastric banding status | O99.84Not billable | Bariatric surgery status complicating pregnancy, childbirth and the puerperium |
| gastric bypass status | O99.84Not billable | Bariatric surgery status complicating pregnancy, childbirth and the puerperium |
| genital herpes | O98.3Not billable | Other infections with a predominantly sexual mode of transmission complicating pregnancy, childbirth and the puerperium |
| genital tract infection | O23.9Not billable | Unspecified genitourinary tract infection in pregnancy |
| glomerular diseases | O26.83Not billable | Pregnancy related renal disease |
| gonorrhea | O98.21Not billable | Gonorrhea complicating pregnancy |
| grand multiparity | O09.4Not billable | Supervision of pregnancy with grand multiparity |
| HELLP syndrome | O14.2Not billable | HELLP syndrome |
| hemorrhoids | O22.4Not billable | Hemorrhoids in pregnancy |
| hepatitis | O98.41Not billable | Viral hepatitis complicating pregnancy |
| herniation of uterus | O34.59Not billable | Maternal care for other abnormalities of gravid uterus |
| history of in utero procedure during previous pregnancy | O09.82Not billable | Supervision of pregnancy with history of in utero procedure during previous pregnancy |
| HIV | O98.71Not billable | Human immunodeficiency virus [HIV] disease complicating pregnancy |
| human immunodeficiency virus disease | O98.71Not billable | Human immunodeficiency virus [HIV] disease complicating pregnancy |
| hydatidiform mole | O01.9 | Hydatidiform mole, unspecified |
| hydrocephalic fetus | O33.6Not billable | Maternal care for disproportion due to hydrocephalic fetus |
| 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 | O26.5Not billable | Maternal hypotension syndrome |
| immune disorders NEC | O99.11Not billable | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy |
| incarceration, uterus | O34.51Not billable | Maternal care for incarceration of gravid uterus |
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