ICD-10-CM > M00-M99 > M00-M02 > M00 > M00.2 > M00.26 M00.26 Other streptococcal arthritis, knee Non-Billable/Non-Specific Codes M00.261Other streptococcal arthritis, right kneeM00.262Other streptococcal arthritis, left kneeM00.269Other streptococcal arthritis, unspecified knee