Other subluxation of unspecified patella, initial encounter

This diagnosis code signifies a partial dislocation of the kneecap (patella) that is not further specified as recurrent, traumatic, or congenital. It indicates that the patella has moved out of its normal groove but remains partially in contact with the femur. This code is used for the initial presentation of such an injury.

Apply this code when documentation describes a subluxation of the patella without specifying the laterality (left or right) or the specific type of subluxation (e.g., recurrent, traumatic). This is appropriate for the first time a patient is seen for this particular injury.

• Ensure documentation clearly states "subluxation" and not a full dislocation.
• Verify that no laterality (left or right patella) is specified in the medical record.
• Confirm this is the initial encounter for this specific injury; subsequent encounters will require a different seventh character.