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N21.0

Billable

Calculus in bladder

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A bladder stone is a hard mineral deposit that forms in the bladder and can cause urinary symptoms and obstruction.

Coding Tips

  • •Document the size and number of stones if available
  • •Note any associated symptoms such as hematuria or dysuria

Excludes 2 — Not included here, may code separately

  • staghorn calculus (N20.0)

Code Hierarchy

└N21Calculus of lower urinary tract└N21.0Calculus in bladder
└N21.0Calculus in bladder

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