ICD-10-CM > S00-T88 > T80-T88 > T85 > T85.5 > T85.52 > T85.521 T85.521 Displacement of esophageal anti-reflux device Non-Billable/Non-Specific Codes T85.521A..., initial encounterT85.521D..., subsequent encounterT85.521S..., sequela