ICD-10-CM Book 2024 Edition

Chapters  /  Chapter 14  /  N20-N23  /  N21
N21 Calculus of lower urinary tract
Includes calculus of lower urinary tract with cystitis and urethritis
N21.0 Calculus in bladder
Calculus in diverticulum of bladder
Urinary bladder stone
Excludes2 staghorn calculus (N20.0)
N21.1 Calculus in urethra
Excludes2 calculus of prostate (N42.0)
N21.8 Other lower urinary tract calculus
N21.9 Calculus of lower urinary tract, unspecified
Excludes1 calculus of urinary tract NOS (N20.9)