Acute on chr slipped upper femoral epiphy, unstbl, unsp hip

This code signifies an acute worsening of a pre-existing, chronic slipped upper femoral epiphysis (SUFE) in the right hip, where the femoral head is significantly displaced from the femoral neck. The "unstable" designation indicates that the patient is unable to bear weight on the affected leg, even with crutches, due to the severity of the slip. The "nontraumatic" aspect specifies that the acute exacerbation was not caused by a specific injury.

Apply this code when documentation clearly states an acute on chronic, unstable SUFE of the right hip that is not attributed to trauma. This typically involves a patient with a history of SUFE presenting with sudden, severe hip pain and inability to ambulate. Supporting documentation should include imaging (X-ray, MRI) confirming the slip and clinical notes detailing the acute presentation and instability.

• Ensure documentation specifies "acute on chronic" and "unstable" for accurate code assignment.
• Verify the laterality (right hip) is clearly documented; separate codes exist for left or bilateral involvement.
• Distinguish from chronic stable SUFE (M93.00- series) or acute traumatic SUFE, which would be coded differently.