ICD-10-CM > S00-T88 > T80-T88 > T85 > T85.5 > T85.51 > T85.511 T85.511 Breakdown (mechanical) of esophageal anti-reflux device Non-Billable/Non-Specific Codes T85.511A..., initial encounterT85.511D..., subsequent encounterT85.511S..., sequela