N21.9
Calculus of lower urinary tract, unspecified
Billable
Code Hierarchy
N21N21.9
Chapter: 14. Diseases of the genitourinary system
Section: N20-N23 - Urolithiasis
Coding Guidelines
Excludes1 (Mutually Exclusive)
These codes should never be used together with N21.9
- N20.9 - calculus of urinary tract NOS (N20.9)
