ICD-10-CM > S00-T88 > T80-T88 > T82 > T82.2 > T82.21 > T82.211 T82.211 Breakdown (mechanical) of coronary artery bypass graft Non-Billable/Non-Specific Codes T82.211A..., initial encounterT82.211D..., subsequent encounterT82.211S..., sequela