- N21.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM N21.0 became effective on October 1, 2022.
- This is the American ICD-10-CM version of N21.0 – other international versions of ICD-10 N21.0 may differ.
ICD-10-CM N21.0 is grouped within Diagnostic Related Group(s):
Applicable To
- Calculus in diverticulum of bladder
- Urinary bladder stone
Type 2 Excludes
- staghorn calculus (N20.0)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2024 (effective 10/1/2022): No change
Diagnosis Index entries containing back-references to N21.0:
- bladder (encysted) (impacted) (urinary) (diverticulum) > Calculus, calculi, calculous
- cystic > Calculus, calculi, calculous
- diverticulum > Calculus, calculi, calculous
- bladder > diverticulum N21.0
- vesical (impacted) > Calculus, calculi, calculous
- calculous > Cystitis (exudative) (hemorrhagic) (septic) (suppurative) N30.90
- bladder (diverticulum) > Stone (s)
- bladder (diverticulum) > urinary (duct) (impacted) (passage) N20.9