ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.6 > T22.65 > T22.659 T22.659 Corrosion of second degree of unspecified shoulder Non-Billable/Non-Specific Codes T22.659A..., initial encounterT22.659D..., subsequent encounterT22.659S..., sequela