ICD-10-CM > M00-M99 > M00-M02 > M02 > M02.3 > M02.36 M02.36 Reiter's disease, knee Non-Billable/Non-Specific Codes M02.361Reiter's disease, right kneeM02.362Reiter's disease, left kneeM02.369Reiter's disease, unspecified knee