Unstable
- back NEC 724.9
- colon 569.89
- joint - see Instability, joint
- lie 652.0
- affecting fetus or newborn (before labor) 761.7
- causing obstructed labor 660.0
- affecting fetus or newborn 763.1
- lumbosacral joint (congenital) 756.19
- sacroiliac 724.6
- spine NEC 724.9