Underdosing of antihyperlip and antiarterio drugs, sequela

This code indicates a long-term consequence or complication arising from the patient not receiving enough of their prescribed cholesterol-lowering or anti-hardening of the arteries medications. This could manifest as persistent or worsened cardiovascular conditions directly attributable to the past underdosing.

Apply this code when a patient presents with a chronic condition, such as advanced atherosclerosis, myocardial infarction, or stroke, and the medical record clearly links this condition as a sequela of historical, inadequate dosing of their antihyperlipidemic or antiarteriosclerotic drugs. This code is appropriate for conditions that are no longer acute but are a lasting effect of the underdosing event.

• Always assign an additional code(s) to specify the particular sequela (e.g., I25.10 for atherosclerotic heart disease).
• Ensure documentation explicitly states the link between the underdosing and the current chronic condition.
• This "S" seventh character indicates a sequela and should only be used for complications or conditions that arise as a direct result of the initial underdosing event, after the acute phase has passed.