Flail joint, unspecified hip

This code describes a flail joint affecting an unspecified hip. A flail joint is characterized by abnormal, excessive, and uncontrolled mobility, often resulting from severe ligamentous laxity, muscle paralysis, or extensive bone loss around the joint. This instability compromises the joint's ability to bear weight or perform controlled movements.

Use this code when documentation indicates a flail joint of the hip, but the laterality (right or left) is not specified. This typically occurs in cases of severe joint instability where the specific side is either unknown or not recorded. Supporting documentation would describe significant hip instability, often with associated functional impairment, without specifying the affected side.

• Avoid using this code if the laterality of the flail hip is documented; instead, select the more specific code for the right (M25.251) or left (M25.252) hip.
• Ensure the documentation clearly supports the diagnosis of a "flail joint" rather than general instability or laxity, which may be coded differently.
• Consider sequencing this code with any underlying cause of the flail joint, such as neurological conditions or severe trauma, if applicable and documented.