N20.9 ICD-10-CA code: Urinary calculus, unspecified
N20.9 is the ICD-10-CA code for “Urinary calculus, unspecified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
N20.9Urinary calculus, unspecified
Short description: Urinary calculus unspecified
ICD-10-CA · Canada · Also written N209
Index terms
Entries in CIHI’s alphabetical index that lead to N20.9. Searching the index by the condition the note names is how coders reach this code.
- Urolithiasis
- Gravel (urinary)
- Pyelonephritis, calculous NEC
- Pyelonephritis, with, calculus
- Pyelonephritis, acute (with), calculus
- Anuria, calculous (impacted) (recurrent)
- Stone(s), urinary (duct) (impacted) (passage)
- Nephritis, nephritic, chronic (with), calculus
- Pyelitis (congenital) (uremic), with, calculus
- Pyelonephritis, chronic (with), calculus (with)
- Cystopyelitis, with calculus (impacted) (recurrent)
- Pyelocystitis, with calculus (impacted) (recurrent)
- Pyelitis (congenital) (uremic), chronic, with calculus
- Calculus, calculi, calculous, pyelitis (impacted) (recurrent)
- Calculus, calculi, calculous, pyelonephritis (impacted) (recurrent)
- Calculus, calculi, calculous, urinary (duct) (impacted) (passage) (tract)
- Pyelitis (congenital) (uremic), acute, with calculus (impacted) (recurrent)
- Reflux, ureteral, with pyelonephritis (chronic), with calculus (impacted) (recurrent)
Notes for N20.9
As CIHI prints them, with any note N20.9 takes from the headings above it.
Includes
- Calculous pyelonephritisFrom N20 Calculus of kidney and ureter
Excludes
Conditions classified elsewhere.
- With hydronephrosis (N13.2)From N20 Calculus of kidney and ureter
- Certain conditions originating in the perinatal period (P00-P96)certain infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 14: Diseases of the genitourinary system (N00-N99)
Where N20.9 sits
- 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
- 2Block N20-N23Urolithiasis
- 3Category N20Calculus of kidney and ureter
- 4Valid code N20.9Urinary calculus, unspecified
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code N20.9 mean?
N20.9 is the ICD-10-CA code for “Urinary calculus, unspecified” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is N20.9 in ICD-10-CA?
N20.9 sits under N20 Calculus of kidney and ureter, within N20-N23 Urolithiasis, within Chapter 14: Diseases of the genitourinary system (N00-N99).
What coding notes apply to N20.9?
ICD-10-CA lists Includes, Excludes notes for N20.9, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.