ICD-10-CM > M00-M99 > M70-M79 > M71 > M71.5 > M71.56 M71.56 Other bursitis, not elsewhere classified, knee Non-Billable/Non-Specific Codes M71.561Other bursitis, not elsewhere classified, right kneeM71.562Other bursitis, not elsewhere classified, left kneeM71.569Other bursitis, not elsewhere classified, unspecified knee