O62 - Abnormalities of forces of labor
O62.0 - Primary inadequate contractions
O62.1 - Secondary uterine inertia
O62.2 - Other uterine inertia
O62.3 - Precipitate labor
O62.4 - Hypertonic, incoordinate, and prolonged uterine contractions
O62.8 - Other abnormalities of forces of labor
O62.9 - Abnormality of forces of labor, unspecified