results found in ( seconds)
We are looking for ways to improve. If you have an suggestion for how ICD.Codes could be better, submit your idea!

ICD-10-CM Code N21.0
Calculus in bladder

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

N21.0 is a billable ICD code used to specify a diagnosis of calculus in bladder. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code N210 is used to code Bladder stone

A bladder stone (also called a vesical calculus or cystolith) is a calculus (stone) found in the urinary bladder.

Specialty: Urology
MeSH Codes: D001744, D001744, D001744, D001744, D001744
ICD 9 Codes: 594.0, 594.1, 594.2, 594.8, 594.9

A star-shaped urolith can be seen in the urinary bladder on this radiograph of the pelvis

Source: Wikipedia

Coding Notes for N21.0 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Calculus in diverticulum of bladder
Urinary bladder stone
Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here."
Staghorn calculus - instead, use code N20.0

MS-DRG Mapping

  • DRG Group #691-694 - Urinary stones with esw lithotripsy with CC or MCC.
  • DRG Group #691-694 - Urinary stones with esw lithotripsy without CC or MCC.
  • DRG Group #691-694 - Urinary stones without esw lithotripsy with MCC.
  • DRG Group #691-694 - Urinary stones without esw lithotripsy without MCC.

Related Concepts SNOMET-CT

  • Vesicoureteric junction calculus (disorder)

ICD-10-CM Alphabetical Index References for 'N21.0 - Calculus in bladder'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code N21.0. Click on any term below to browse the alphabetical index.


Calculus in diverticulum of bladder (approximate match)
Other calculus in bladder (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code N21.0 and a single ICD9 code, 594.1 is an approximate match for comparison and conversion purposes.

Parent Code: N21 - Calculus of lower urinary tract

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/N210