• 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