ICD-10-CM > S00-T88 > T80-T88 > T84 > T84.0 > T84.03 > T84.039 T84.039 Mechanical loosening of unspecified internal prosthetic joint Non-Billable/Non-Specific Codes T84.039A..., initial encounterT84.039D..., subsequent encounterT84.039S..., sequela