Stenosis of coronary artery stent, sequela

This code signifies a long-term complication arising from a coronary artery stent, specifically the narrowing or obstruction of the stented vessel. This stenosis is a delayed effect, occurring after the initial acute phase of stent placement and its immediate complications.

This code is appropriate for documenting a patient presenting with symptoms or diagnostic findings indicative of coronary artery re-stenosis within a previously placed stent, where the condition is a chronic or late sequela. It applies when the initial stent complication has resolved, and the current issue is a persistent or recurrent narrowing.

• Requires an additional code to specify the type of coronary artery disease or angina pectoris if present.
• Distinguish from acute stent complications (e.g., thrombosis, dissection) which have different coding pathways.
• Ensure documentation clearly supports the "sequela" aspect, indicating a late effect rather than an acute event.