- 660 Obstructed labor
- 661 Abnormality of forces of labor
- 662 Long labor
- 663 Umbilical cord complications during labor and delivery
- 664 Trauma to perineum and vulva during delivery
- 665 Other obstetrical trauma
- 666 Postpartum hemorrhage
- 667 rEtained placenta or membranes without hemorrhage
- 668 Complications of the administration of anesthetic or other sedation in labor and delivery
- 669 Other complications of labor and delivery not elsewhere classified
