ICD-10-CM > S00-T88 > T80-T88 > T82 > T82.8 > T82.85 > T82.855 T82.855 Stenosis of coronary artery stent Non-Billable/Non-Specific Applicable To In-stent stenosis (restenosis) of coronary artery stentRestenosis of coronary artery stent Codes T82.855A..., initial encounterT82.855D..., subsequent encounterT82.855S..., sequela