Chr emblsm and thombos unsp deep veins of r prox low extrm

This code signifies a long-standing blockage within the deep venous system of the upper right leg, specifically in an unspecified proximal location. This condition involves either a blood clot (thrombosis) or a dislodged clot (embolism) that has persisted over time.

Use this code when documentation clearly indicates a chronic deep vein thrombosis (DVT) or embolism affecting the right proximal lower extremity, but the specific deep vein (e.g., femoral, popliteal) is not identified. This applies to patients presenting with symptoms of chronic venous insufficiency or post-thrombotic syndrome in the right upper leg, where imaging confirms a chronic, unspecified deep vein occlusion.

• Ensure the documentation specifies "chronic" and "unspecified deep veins" of the "right proximal lower extremity."
• Avoid using this code if a specific deep vein (e.g., femoral, iliac) is identified; instead, use a more specific code from the I82.4- or I82.5- series.
• Always sequence this code after any acute DVT if both are present and treated, as the acute condition typically drives the initial encounter.