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ICD-10-CM Code N28.9
Disorder of kidney and ureter, unspecified

Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

N28.9 is a billable ICD code used to specify a diagnosis of disorder of kidney and ureter, unspecified. A 'billable code' is detailed enough to be used to specify a medical diagnosis.

The ICD code N28 is used to code Renal cyst

A renal cyst is a fluid collection in the kidney. There are several types based on the Bosniak classification. The majority are benign, simple cysts that can be monitored and not intervened upon. However, some are cancerous or are suspicious for cancer and are commonly removed in a surgical procedure called nephrectomy.

ICD 9 Code: 593.2

Source: Wikipedia

Coding Notes for N28.9 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
Nephropathy NOS
Renal disease (acute) NOS
Renal insufficiency (acute)
Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Chronic renal insufficiency - instead, use code N18.9
Unspecified nephritic syndrome - instead, use code N05.-

MS-DRG Mapping

  • DRG Group #698-700 - Other kidney and urinary tract diagnoses with MCC.
  • DRG Group #698-700 - Other kidney and urinary tract diagnoses with CC.
  • DRG Group #698-700 - Other kidney and urinary tract diagnoses without CC or MCC.

ICD-10-CM Alphabetical Index References for 'N28.9 - Disorder of kidney and ureter, unspecified'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code N28.9. Click on any term below to browse the alphabetical index.

Shutdown, renal (N28.9)
Nephropathy (N28.9) (see: Nephritis)
Inefficiency, kidney (N28.9)


Unspecified disorder of kidney and ureter (approximate match)

This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code N28.9 and a single ICD9 code, 593.9 is an approximate match for comparison and conversion purposes.

Parent Code: N28 - Other disorders of kidney and ureter, not elsewhere classified

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/N289