Fracture of one rib, right side, subs for fx w nonunion

This code signifies a right-sided rib fracture that has failed to heal properly, indicating a nonunion. It is used when the patient is seen for follow-up care after the initial treatment of the fracture, and the nonunion is identified or continues to be present.

Apply this code for patients presenting for ongoing management of a right rib fracture where imaging or clinical assessment confirms a nonunion. This includes follow-up visits for conservative management of the nonunion, or prior to surgical intervention for the nonunion. It is appropriate after the initial encounter for the fracture.

• Ensure documentation clearly states "nonunion" and specifies the right side and a single rib.
• Verify this is a subsequent encounter, not the initial treatment for the fracture.
• Confirm the laterality (right side) is explicitly documented to avoid miscoding.