ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.5 > T22.52 > T22.529 T22.529 Corrosion of first degree of unspecified elbow Non-Billable/Non-Specific Codes T22.529A..., initial encounterT22.529D..., subsequent encounterT22.529S..., sequela