M1A.331Chronic gout due to renal impairment, right wrist

M1A.331 is the ICD-10-CM diagnosis code for chronic gout due to renal impairment, right wrist. It belongs to category M1A (chronic gout), 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 2 subcodes must be used instead.

Within M1A.33 (chronic gout due to renal impairment, wrist), M1A.331 is specifically for chronic gout due to renal impairment, right wrist. Related codes cover left wrist (M1A.332) and unspecified wrist (M1A.339).

Codes in this range require a 7th character: 0 for without tophus (tophi) and 1 for with tophus (tophi). Use placeholder "X" characters to fill any empty positions before the 7th character.

Use an additional code to identify: Autonomic neuropathy in diseases classified elsewhere (G99.0), Calculus of urinary tract in diseases classified elsewhere (N22), Cardiomyopathy in diseases classified elsewhere (I43), Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-), Disorders of iris and ciliary body in diseases classified elsewhere (H22) and 1 more.

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