Table 1. The definition of abortion, delivery, and maternal (obstetrical) complications.
| Variables | ICD-10 code | |
|---|---|---|
| Abortion | O00–O08 (O00–O089) | |
| Delivery | ||
| Cesarean section | O82 (O820–O829), O842 | |
| Vaginal delivery | O80 (O800–O809), O81 (O810–O815), O83 (O830–O839), O840, O841 | |
| Maternal (obstetrical) complications | ||
| Preeclampsia | O14 (O140–O149) | |
| Eclampsia | O15 (O150–O159) | |
| Gestational hypertension | O13 | |
| Gestational diabetes mellitus | O244 | |
| Placenta previa | O44 (O440–O441) | |
| Abruptio placentae | O45 (O450–O459) | |
| Obstructed labor | O64–O66 (O640–O669) | |
| Preterm delivery | O601 | |
| Still birth | O364 | |
| APN | O23 (O230–O239), N10, N12, N159 | |
| Perineal laceration | O702, O703 | |
| Obstetric hemorrhage | O67 (O670–O679), O72 (O720–O723) | |
| Fetal stress | O68 (O680–O689) | |
| Transfusion | X1001, X1002, X2011, X2012, X2021, X2022, X2031, X2032, X2131, X2132, X2091, X2092, X2515, X2512 | |
| Admission to ICU | AJ110, AJ210, AJ120, AJ220, AJ130, AJ230, AJ140, AJ240, AJ150, AJ250, AJ100, AJ200, AJ300, AJ180, AJ280, AJ380 | |
| Uterine artery embolization | M6644 | |
| Cesarean hysterectomy | R4507, R4508, R4509, R4510, R5001, R5002 | |
ICD = International Classification of Diseases, APN = acute pyelonephritis, ICU = intensive care unit.