ICD-10-CM > M00-M99 > M00-M02 > M00 > M00.1 > M00.12 M00.12 Pneumococcal arthritis, elbow Non-Billable/Non-Specific Codes M00.121Pneumococcal arthritis, right elbowM00.122Pneumococcal arthritis, left elbowM00.129Pneumococcal arthritis, unspecified elbow