The hip joint is unstable and moves excessively due to loss of normal support.
Because there is only one rating level for a hip flail joint at 80%, the evidence needs to show that your hip qualifies as a flail joint. Medical records documenting the diagnosis of a flail hip, including surgical reports, imaging such as X-rays or MRI, and orthopedic examination notes, are central to establishing that finding. A VA or private examination that describes the instability of the joint, the absence of normal structural control, and the range-of-motion findings helps confirm the condition. Records showing how the hip affects your ability to bear weight, walk, or perform daily activities can also support the overall picture. If a prosthetic replacement or resurfacing procedure has been performed on the hip, those surgical and postoperative records are relevant to determining which diagnostic code applies to your situation.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.