ICD-10-CM > M00-M99 > M05-M14 > M05 > M05.0 > M05.01 M05.01 Felty's syndrome, shoulder Non-Billable/Non-Specific Codes M05.011Felty's syndrome, right shoulderM05.012Felty's syndrome, left shoulderM05.019Felty's syndrome, unspecified shoulder