Nondisp fx of posterior wall of unsp acetab, init for opn fx

This code signifies a break in the back portion of the hip socket (acetabulum) that has not shifted out of alignment. The fracture is open, meaning there is a wound connecting the fracture site to the outside environment. This code is used for the initial treatment of such an injury.

Apply this code when documenting the first encounter for an open, nondisplaced fracture of the posterior wall of the acetabulum. This typically occurs following high-impact trauma, such as motor vehicle accidents or falls, where the skin integrity is compromised over the fracture site.

• Ensure documentation clearly specifies "nondisplaced" and "posterior wall" of the acetabulum.
• Confirm the fracture is "open" and this is the "initial encounter" for treatment.
• If the laterality (left or right) of the acetabulum is known, a more specific code should be used.