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ICD-10-CM Code N21.1
Calculus in urethra

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

N21.1 is a billable ICD code used to specify a diagnosis of calculus in urethra. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code N211 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 N21.1 Info for medical coders on how to properly use this ICD-10 code

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."
Calculus of prostate - instead, use code N42.0

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.

ICD-10-CM Alphabetical Index References for 'N21.1 - Calculus in urethra'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code N21.1. Click on any term below to browse the alphabetical index.


Calculus in urethra (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 594.2 was previously used, N21.1 is the appropriate modern ICD10 code.

Parent Code: N21 - Calculus of lower urinary tract

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/N211