M12.87Other specific arthropathies, not elsewhere classified, ankle and foot

M12.87 is the ICD-10-CM diagnosis code for other specific arthropathies, not elsewhere classified, ankle and foot. 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 3 subcodes must be used instead.

Within M12.8 (other specific arthropathies, not elsewhere classified), M12.87 is specifically for other specific arthropathies, not elsewhere classified, ankle and foot. Related codes cover unspecified site (M12.80), shoulder (M12.81), elbow (M12.82), wrist (M12.83), hand (M12.84), hip (M12.85), knee (M12.86), other specified site (M12.88) and 1 more.

To report this condition, pick the subcode that matches the documentation: M12.871 (foot), M12.872 (foot) and M12.879 (foot).

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