Undrdose of antivaric drugs, including scler agents, sequela

This code signifies a long-term adverse effect resulting from a patient not receiving enough of an antivaricose medication, such as a sclerosing agent. It indicates that the underdosing event has already occurred and the patient is now experiencing a residual condition or complication directly attributable to that past event.

Apply this code when documenting a current health problem that is a direct consequence of a previous, insufficient administration of a drug used to treat varicose veins or for sclerotherapy. This would be used after the acute underdosing event has passed, and the patient presents with a sequela.

• Always use this code as a secondary diagnosis, following the code for the specific sequela or complication.
• Ensure documentation clearly links the current condition to a past underdosing of an antivaricose drug.
• The "S" seventh character indicates sequela, meaning the condition is a late effect of the underdosing.