Chronic emblsm and thombos unsp deep vn unsp prox low extrm

This code signifies a long-standing blockage within the deep venous system of an unspecified proximal lower extremity, caused by either an embolus (traveling clot) or a thrombus (stationary clot). It indicates a chronic, rather than acute, process affecting the larger veins closer to the torso, without specifying laterality or the exact vein involved.

Use this code when documentation confirms a chronic deep vein thrombosis or embolism in the upper leg or hip region, but the specific deep vein (e.g., femoral, iliac) is not identified, nor is the affected side. This code is appropriate when the provider explicitly states "unspecified proximal lower extremity" or when the documentation lacks the specificity to assign a more precise anatomical site.

• Avoid using this code if the laterality (left or right) or specific deep vein is documented; instead, choose a more specific code from the I82.5- series.
• Ensure the documentation clearly states "chronic" to differentiate from acute events.
• This code should be used as a last resort when anatomical specificity is truly absent, as it indicates incomplete documentation.