N21.0

N21.0: Calculus in bladder

Billable / specific codeICD-10-CM

N21.0 is a billable, specific ICD-10-CM code for calculus in bladder. It is valid for submission on a claim.

Check N21.0 with the rest of the claim: free scrubber

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

staghorn calculus (N20.0)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Calculus in diverticulum of bladder
Urinary bladder stone

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

Cystolithiasis
Calculus, calculi, calculous›bladder(encysted) (impacted) (urinary) (diverticulum)
Calculus, calculi, calculous›cystic
Calculus, calculi, calculous›vesical(impacted)
Cystitis›calculous
Stone›bladder(diverticulum)
Calculus, calculi, calculous›diverticulum›bladder
Stone›urinary›bladder(diverticulum)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under N21