ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.7 > T23.79 > T23.791 T23.791 Corrosion of third degree of multiple sites of right wrist and hand Non-Billable/Non-Specific Codes T23.791A..., initial encounterT23.791D..., subsequent encounterT23.791S..., sequela