M34.8Other forms of systemic sclerosis

M34.8 is the ICD-10-CM diagnosis code for other forms of systemic sclerosis. It belongs to category M34 (systemic sclerosis [scleroderma]), block M30-M36 (systemic connective tissue disorders) 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 4 subcodes must be used instead.

Within M34, choose M34.8 (Other forms of systemic sclerosis) only when documentation doesn't support a more specific option: progressive systemic sclerosis (M34.0), CR(E)ST syndrome (M34.1), systemic sclerosis induced by drug and chemical (M34.2) and systemic sclerosis, unspecified (M34.9).

To report this condition, pick the subcode that matches the documentation: M34.81 (involvement), M34.82 (myopathy), M34.83 (polyneuropathy) and M34.89 (sclerosis).

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