Type 4 fracture of sacrum, subs for fx w nonunion

This code signifies a specific type of sacral fracture, classified as a Type 4, which is a high-energy injury often involving the S1 and S2 segments. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase, while "nonunion" specifies that the fracture has failed to heal properly after a reasonable period.

Use this code when documenting follow-up care for a patient previously diagnosed with a Type 4 sacral fracture who is experiencing nonunion. This applies to situations such as ongoing pain management, assessment of nonunion, or preparation for surgical intervention to address the nonunion.

• Always confirm the fracture type (Type 4) and the nonunion status from the physician's documentation.
• Ensure the encounter is for follow-up care, not the initial treatment of the fracture.
• Pair this code with external cause codes (e.g., V-codes) if the cause of the injury is still relevant and documented.