ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.5 > T22.52 > T22.522 T22.522 Corrosion of first degree of left elbow Non-Billable/Non-Specific Codes T22.522A..., initial encounterT22.522D..., subsequent encounterT22.522S..., sequela