M12.0Chronic postrheumatic arthropathy [Jaccoud]

M12.0 is the ICD-10-CM diagnosis code for chronic postrheumatic arthropathy [Jaccoud]. It belongs to category M12 (other and unspecified arthropathy), 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 10 subcodes must be used instead.

Within M12 (other and unspecified arthropathy), M12.0 is specifically for chronic postrheumatic arthropathy [Jaccoud]. Related codes cover Kaschin-Beck disease (M12.1), Villonodular synovitis (pigmented) (M12.2), Palindromic rheumatism (M12.3), intermittent hydrarthrosis (M12.4), traumatic arthropathy (M12.5), other specific arthropathies, not elsewhere classified (M12.8) and arthropathy, unspecified (M12.9).

To report this condition, pick the subcode that matches the documentation: M12.00 (unspecified site), M12.01 (shoulder), M12.02 (elbow), M12.03 (wrist), M12.04 (hand), M12.05 (hip), M12.06 (knee), M12.07 (ankle and foot) and 2 more.

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