All ICD10 Codes

N25-N29

Non-Billable
ChapterN00–N99
Rankblock
Official Description

Other disorders of kidney and ureter (N25-N29)

Use a more specific code (1 billable, 4 non-billable)
N25Disorders resulting from impaired renal tubular functionhas subcodesN26Unspecified contracted kidneyhas subcodesN27Small kidney of unknown causehas subcodesN28Other disorders of kidney and ureter, not elsewhere classifiedhas subcodesN29Other disorders of kidney and ureter in diseases classified elsewhere
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 14: Diseases of the Genitourinary System (N00-N99).

CH14 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • disorders of kidney and ureter with urolithiasis (N20-N23)

Clinical Hierarchy

BillableHas subcodes
CH14Diseases of the genitourinary system (N00-N99)
N25-N29Other disorders of kidney and ureter (N25-N29)Not billable
N25Disorders resulting from impaired renal tubular functionSubcodes
N26Unspecified contracted kidneySubcodes
N27Small kidney of unknown causeSubcodes
N28Other disorders of kidney and ureter, not elsewhere classifiedSubcodes
N29Other disorders of kidney and ureter in diseases classified elsewhereBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to N25-N29:

chapterCH14
Diseases of the genitourinary system (N00-N99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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