Pathological dislocation of right knee, NEC

This code signifies a spontaneous displacement of the right kneecap or the bones forming the knee joint, not due to trauma. This dislocation arises from an underlying disease process that weakens the joint structures, rather than an external force.

Apply this code when documentation clearly states a dislocation of the right knee that is explicitly non-traumatic and attributed to a pathological cause. This includes conditions like severe arthritis, neuromuscular disorders, or connective tissue diseases leading to joint instability. Documentation should specify "pathological dislocation" or similar phrasing.

• Ensure documentation specifies "right knee" and "pathological" to differentiate from traumatic or unspecified dislocations.
• Always code the underlying disease causing the pathological dislocation first, as it is the primary etiology.
• Do not use this code for congenital dislocations; those have specific codes within Q68-Q79.