N28.9
Disorder of kidney and ureter, unspecified
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 3 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 11 never code together
N28.9code
N00-N99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 3
N28.9code
Inclusion terms
- Nephropathy NOS
- Renal disease (acute) NOS
- Renal insufficiency (acute)
Index entries leading here 14
- Disease, diseased — see also Syndrome
- Insufficiency, insufficient
- Block, blocked
- kidney N28.9
- Cachexia R64
- renal N28.9
- Complication (s) (from) (of)
- renal N28.9
- Depletion
- Disorder (of) — see also Disease
- Low
- function — see also Hypofunction
- kidney N28.9
- function — see also Hypofunction
- Impaired, impairment (function)
- Inefficiency, kidney N28.9
- Nonfunctioning
- kidney N28.9
- Nephropathy N28.9
- Suppression
- renal N28.9
- Shutdown, renal N28.9
Alongside this code 3 same parent — N28
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.