ICD-10-CM Code N21.9
Calculus of lower urinary tract, unspecified
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.N21.9 is a billable ICD code used to specify a diagnosis of calculus of lower urinary tract, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code N219 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
Coding Notes for N21.9 Info for medical coders on how to properly use this ICD-10 code
-
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here." - Calculus of urinary tract NOS - instead, use code N20.9
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 'N21.9 - Calculus of lower urinary tract, unspecified'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code N21.9. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
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 594.9 was previously used, N21.9 is the appropriate modern ICD10 code.
Parent Code: N21 - Calculus of lower urinary tract