Chronic gout Use 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)Glomerular disorders in diseases classified elsewhere (N08)Excludes1gout NOS (M10.-)Excludes2acute gout (M10.-)The appropriate 7th character is to be added to each code from category M1A0 - without tophus (tophi)1 - with tophus (tophi)