ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.4 > T22.45 > T22.452 T22.452 Corrosion of unspecified degree of left shoulder Non-Billable/Non-Specific Codes T22.452A..., initial encounterT22.452D..., subsequent encounterT22.452S..., sequela