ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.4 > T22.49 > T22.492 T22.492 Corrosion of unspecified degree of multiple sites of left shoulder and upper limb, except wrist and hand Non-Billable/Non-Specific Codes T22.492A..., initial encounterT22.492D..., subsequent encounterT22.492S..., sequela