Displaced avulsion fx tuberosity of unsp calcaneus, sequela

This code signifies a long-term complication or late effect stemming from a displaced avulsion fracture of the tuberosity of the calcaneus (heel bone) where the specific side (left or right) is not documented. An avulsion fracture occurs when a small piece of bone is pulled away by a tendon or ligament. "Displaced" indicates the bone fragments are not in their normal alignment.

This code is appropriate for documenting residual problems or conditions that are a direct result of a previously sustained displaced avulsion fracture of the calcaneal tuberosity, when the laterality is unspecified. This includes chronic pain, deformity, nonunion, or malunion, occurring after the initial healing phase of the fracture. It should be used when the patient is presenting for treatment of these lasting effects, not for the initial acute injury.

• Always sequence this "S" code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the previous calcaneal fracture.
• Avoid using this code for acute or subacute fracture care; it is exclusively for sequelae.