Chronic gout

**Excludes1:** - gout NOS (M10.-)

**Excludes2:** - acute gout (M10.-)

**Use additional code:** - 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)

**7th character note:** - The appropriate 7th character is to be added to each code from category M1A

**7th character:** - 0: without tophus (tophi) - 1: with tophus (tophi)