ICD-10-CM > S00-T88 > T20-T25 > T21 > T21.5 > T21.52 T21.52 Corrosion of first degree of abdominal wall Non-Billable/Non-Specific Applicable To Corrosion of first degree of flankCorrosion of first degree of groin Codes T21.52XA..., initial encounterT21.52XD..., subsequent encounterT21.52XS..., sequela