Urolithiasis

N20-N23

This section covers 12 ICD-10-CM codes (N20-N23) for urolithiasis, including calculus of kidney and ureter, calculus of lower urinary tract, and calculus of urinary tract in diseases classified elsewhere. 10 of these are billable codes usable on a claim; the rest are non-billable header categories that require a more specific child code.