ICD10
ICD-10 Code N28.8: Other specified disorders of kidney and ureter
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).
When is it used?
- May be used when a clinician documents other specified disorders of kidney and ureter in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
14Diseases of the genitourinary system (N00-N99)
block
N25-N29Other disorders of kidney and ureter
category
N28Other disorders of kidney and ureter, not elsewhere classified
currentN28
Official coding notes
Excludes1 (do not code together)
- hydroureter (N13.4)
- ureteric stricture with hydronephrosis (N13.1)
- ureteric stricture without hydronephrosis (N13.5)
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
UrologistGynecologist
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 124724003high
Abnormal ureteral peristalsis
Source: SNOMED International ICD-10 map
SNOMED_CT 102803006high
Absence of renin secretion
Source: SNOMED International ICD-10 map
SNOMED_CT 124727005high
Absence of ureteral peristalsis
Source: SNOMED International ICD-10 map
SNOMED_CT 423919000high
Acquired caliectasis
Source: SNOMED International ICD-10 map
SNOMED_CT 298127003high
Acquired calyceal diverticulum
Source: SNOMED International ICD-10 map
SNOMED_CT 1338018007high
Acquired deviation of ureter
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
N28.8
Replacement codes
N28.81 — Hypertrophy of kidneyN28.82 — MegaloureterN28.83 — NephroptosisN28.84 — Pyelitis cysticaN28.85 — Pyeloureteritis cysticaN28.86 — Ureteritis cysticaN28.89 — Other specified disorders of kidney and ureter
Common synonyms
Other specified disorders of kidney and ureter
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.