ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.4 > T23.47 > T23.479 T23.479 Corrosion of unspecified degree of unspecified wrist Non-Billable/Non-Specific Codes T23.479A..., initial encounterT23.479D..., subsequent encounterT23.479S..., sequela