Chronic embolism and thrombosis of unspecified femoral vein

This code signifies a long-standing blockage or clot within an unspecified femoral vein, which is a major vein in the thigh. This condition is chronic, meaning it has persisted over time, and the exact location within the femoral vein (e.g., superficial, deep) is not specified in the medical record. It represents an ongoing vascular obstruction that can impair blood flow from the lower extremity.

Use this code when documentation clearly indicates a chronic, rather than acute, embolism or thrombosis affecting a femoral vein, and the specific branch or segment of the femoral vein is not identified. This is appropriate when the physician's diagnosis explicitly states "chronic femoral vein thrombosis" or "chronic femoral vein embolism" without further anatomical detail. Supporting documentation would include imaging reports (e.g., ultrasound, venography) confirming a chronic clot in an unspecified femoral vein.

• Avoid using this code if the documentation specifies the superficial or deep femoral vein; instead, use the more specific codes within the I82.51- subcategory.
• Ensure the documentation differentiates between acute and chronic; if acute, a different code from the I82.4- or I82.4Z- series would be appropriate.
• Always query the provider for greater specificity regarding the femoral vein involved (superficial vs. deep) if not clearly stated, to allow for more precise coding.