M05.619 is a billable ICD code used to specify a diagnosis of rheumatoid arthritis of unspecified shoulder with involvement of other organs and systems. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code M05.619 and a single ICD9 code, 714.2 is an approximate match for comparison and conversion purposes.