Unsp inj great saphenous at low leg level, unsp leg, sequela

This code signifies a long-term complication or late effect stemming from an unspecified injury to the greater saphenous vein in the lower leg. It indicates that the specific nature of the original injury is not documented, and the affected leg is also not specified. This code is used when the acute phase of the injury has passed, and the patient is now experiencing residual issues.

This code is appropriate for documenting chronic pain, scarring, venous insufficiency, or other persistent problems in the lower leg that are directly attributable to a past, unspecific injury of the greater saphenous vein. It should be used when the medical record clearly indicates a sequela and lacks details about the initial injury or laterality.

• Always append the 7th character "S" for sequela when using this code.
• Avoid using this code if the specific type of injury (e.g., laceration, contusion) or the affected leg (right/left) is documented; more specific codes exist.
• Ensure documentation clearly links the current condition to a previous injury of the greater saphenous vein.