N25.9 ICD-10-CA code: Disorder resulting from impaired renal tubular function, unspecified
N25.9 is the ICD-10-CA code for “Disorder resulting from impaired renal tubular function, unspecified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
N25.9Disorder resulting from impaired renal tubular function, unspecified
Short description: Disorders dt impair renal tubular fn NOS
ICD-10-CA · Canada · Also written N259
Index terms
Entries in CIHI’s alphabetical index that lead to N25.9. Searching the index by the condition the note names is how coders reach this code.
- Disorder (of), kidney, tubular function
- Disorder (of), kidney, functional (tubular)
- Disorder (of), impaired renal tubular function
- Disorder (of), tubulo renal function, impaired
- Disorder (of), renal function, impaired (tubular)
- Impaired, impairment (function), kidney, disorder resulting from
- Impaired, impairment (function), kidney, tubular function disorder
Notes for N25.9
As CIHI prints them, with any note N25.9 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Metabolic disorders classifiable to (E70-E90)From N25 Disorders resulting from impaired renal tubular function
- With urolithiasis (N20-N23)From N25-N29 Other disorders 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 N25.9 sits
- 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
- 2Block N25-N29Other disorders of kidney and ureter
- 3Category N25Disorders resulting from impaired renal tubular function
- 4Valid code N25.9Disorder resulting from impaired renal tubular function, 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 N25.9 mean?
N25.9 is the ICD-10-CA code for “Disorder resulting from impaired renal tubular function, unspecified” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is N25.9 in ICD-10-CA?
N25.9 sits under N25 Disorders resulting from impaired renal tubular function, within N25-N29 Other disorders of kidney and ureter, within Chapter 14: Diseases of the genitourinary system (N00-N99).
What coding notes apply to N25.9?
ICD-10-CA lists Excludes notes for N25.9, 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.