Unspecified sprain of sternum, initial encounter

This code signifies a non-specific injury to the ligaments and soft tissues supporting the sternum, without further detail regarding the exact ligament involved or the specific nature of the sprain. It indicates the patient is receiving active treatment for this newly diagnosed condition.

Apply this code when documentation indicates a sternal sprain but lacks specificity regarding the ligament(s) affected, such as "sternal sprain" or "sprain of breastbone." This is appropriate for the initial visit where the injury is first evaluated and treated.

• Ensure documentation clearly states "sprain" and not a fracture or dislocation.
• Verify the encounter is the initial treatment for this specific injury.
• Avoid using this code if a more specific sternal sprain code (e.g., S23.421-S23.428) can be assigned based on provider documentation.