ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.7 > T23.76 > T23.761 T23.761 Corrosion of third degree of back of right hand Non-Billable/Non-Specific Codes T23.761A..., initial encounterT23.761D..., subsequent encounterT23.761S..., sequela