ICD-10-CM > S00-T88 > T80-T88 > T84 > T84.0 > T84.06 > T84.063 T84.063 Wear of articular bearing surface of internal prosthetic left knee joint Non-Billable/Non-Specific Codes T84.063A..., initial encounterT84.063D..., subsequent encounterT84.063S..., sequela