ICD-10-CM > S00-T88 > T26-T28 > T28 > T28.6 T28.6 Corrosion of esophagus Non-Billable/Non-Specific Code First (T51-T65) to identify chemical and intent Codes T28.6XXA..., initial encounterT28.6XXD..., subsequent encounterT28.6XXS..., sequela