Disp fx of post column of unsp acetab, 7thK

This code signifies a fracture of the posterior column of the acetabulum, specifically the ilioischial portion, that is displaced from its normal anatomical position. The "K" seventh character indicates that the patient is receiving active treatment for a nonunion of this fracture.

This code is appropriate for encounters where a patient is being treated for a previously diagnosed displaced posterior column acetabular fracture that has failed to heal properly (nonunion). This includes surgical interventions, cast changes, or other ongoing management specifically addressing the nonunion.

• Ensure documentation clearly specifies "posterior column" and "ilioischial" to support this specific acetabular fracture site.
• The "K" seventh character mandates documentation of active treatment for a nonunion, not just routine follow-up.
• Verify laterality (left, right, or unspecified) is documented; if specified, a more precise code should be used.