Which root operation is characterized by control of bleeding or hemorrhage?

The root operation characterized by the control of bleeding or hemorrhage is "Control." This operation is specifically defined in the ICD-10-PCS coding system for situations where there is a need to stop or control bleeding. It involves medical procedures that are performed to halt an active hemorrhage, addressing the immediate need to manage bleeding and maintain hemostasis.

In contrast, "Occlusion" refers to blocking the flow of fluids or gases, not directly aimed at controlling bleeding. "Resection" is the removal of a portion of a body part and does not necessarily relate to stopping bleeding. "Bypass" involves rerouting the flow of blood or other fluids and is also not designed to immediately address hemorrhage. Understanding the objectives behind each root operation category helps clarify why "Control" is the appropriate choice for the definition provided.