Phlebitis and thombophlb of deep vessels of l low extrem

This code signifies inflammation of a vein (phlebitis) or inflammation of a vein with an associated blood clot (thrombophlebitis) affecting deep veins in the left lower extremity, excluding those specifically categorized elsewhere (e.g., femoral, popliteal, tibial). It indicates a deep vein thrombosis (DVT) or phlebitis in a less common or unspecified deep venous location of the left leg.

Use this code when documentation specifies deep phlebitis or thrombophlebitis in the left lower extremity, and the affected vessel is not the femoral, popliteal, or tibial vein, or is otherwise unspecified as a deep vessel. Supporting documentation should clearly indicate the laterality (left) and the deep nature of the affected vein, often through imaging reports (e.g., ultrasound, venography) or physician notes.

• Ensure the documentation specifies "deep" and "left lower extremity" for accurate code assignment.
• Differentiate from superficial thrombophlebitis (I80.0- series) and specific deep veins (I80.21-I80.23).
• Always review imaging reports and physician notes for precise anatomical location and depth of the affected vessel.