ICD-10-CM > M00-M99 > M05-M14 > M05 > M05.1 > M05.16 M05.16 Rheumatoid lung disease with rheumatoid arthritis of knee Non-Billable/Non-Specific Codes M05.161Rheumatoid lung disease with rheumatoid arthritis of right kneeM05.162Rheumatoid lung disease with rheumatoid arthritis of left kneeM05.169Rheumatoid lung disease with rheumatoid arthritis of unspecified knee