ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.4 > T22.45 > T22.459 T22.459 Corrosion of unspecified degree of unspecified shoulder Non-Billable/Non-Specific Codes T22.459A..., initial encounterT22.459D..., subsequent encounterT22.459S..., sequela