ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.5 > T22.52 > T22.521 T22.521 Corrosion of first degree of right elbow Non-Billable/Non-Specific Codes T22.521A..., initial encounterT22.521D..., subsequent encounterT22.521S..., sequela