Chr emblsm and thombos unsp deep vn of left dist low extrm

This code signifies the presence of a long-standing blood clot within the deep venous system of the left lower leg, specifically in an unspecified distal location. This condition is chronic, meaning it has persisted over time, and involves either an embolism (a clot that traveled from elsewhere) or a thrombosis (a clot formed in situ).

Use this code when documentation clearly indicates a chronic deep vein thrombosis or embolism affecting the left distal lower extremity, and the specific deep vein (e.g., peroneal, posterior tibial) is not specified. This code is appropriate when the patient presents with symptoms consistent with chronic DVT, such as persistent edema, pain, or skin changes, and imaging confirms the presence of a chronic clot in the distal left leg without further anatomical specificity.

• Ensure the documentation explicitly states "chronic" to differentiate from acute DVT.
• Verify that the laterality is clearly documented as "left" and the location as "distal lower extremity."
• If the specific deep vein is identified (e.g., left posterior tibial vein), a more specific code from the I82.50-I82.59 series should be used instead.