Acute embolism and thrombosis of unspecified femoral vein

This code signifies a sudden blockage of an unspecified femoral vein due to a blood clot. This acute event obstructs blood flow, potentially leading to pain, swelling, and warmth in the affected leg. The "unspecified" nature indicates that the laterality (left or right) of the femoral vein is not documented.

Apply this code when documentation clearly states an acute embolism or thrombosis of a femoral vein without specifying whether it's the right or left leg. This typically occurs in emergency department settings or initial evaluations where laterality may not yet be definitively determined or recorded. Supporting documentation would include physician notes detailing the acute onset of symptoms and diagnostic findings consistent with a femoral vein clot.

• Avoid using this code if the laterality (right or left femoral vein) is documented; instead, select the more specific code.
• Ensure the documentation specifies "acute" to differentiate from chronic conditions.
• Consider sequencing this code as a primary diagnosis if it is the main reason for the encounter, or as a secondary diagnosis if it's a co-morbidity impacting treatment.