M05.73Rheumatoid arthritis with rheumatoid factor of wrist without organ or systems involvement

M05.73 is the ICD-10-CM diagnosis code for rheumatoid arthritis with rheumatoid factor of wrist without organ or systems involvement. It belongs to category M05 (rheumatoid arthritis with rheumatoid factor), block M05-M14 (inflammatory polyarthropathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within M05.7, choose M05.73 (wrist without organ or systems involvement) only when documentation doesn't support a more specific option: unspecified site without organ or systems involvement (M05.70), shoulder without organ or systems involvement (M05.71), elbow without organ or systems involvement (M05.72), hand without organ or systems involvement (M05.74), hip without organ or systems involvement (M05.75), knee without organ or systems involvement (M05.76), ankle and foot without organ or systems involvement (M05.77), multiple sites without organ or systems involvement (M05.79) and 1 more.

To report this condition, pick the subcode that matches the documentation: M05.731 (involvement), M05.732 (involvement) and M05.739 (involvement).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.