ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.5 > T23.50 T23.50 Corrosion of first degree of hand, unspecified site Non-Billable/Non-Specific Codes T23.501Corrosion of first degree of right hand, unspecified siteT23.501A..., initial encounterT23.501D..., subsequent encounterT23.501S..., sequelaT23.502Corrosion of first degree of left hand, unspecified siteT23.502A..., initial encounterT23.502D..., subsequent encounterT23.502S..., sequelaT23.509Corrosion of first degree of unspecified hand, unspecified siteT23.509A..., initial encounterT23.509D..., subsequent encounterT23.509S..., sequela