2020 ICD-10-CM Diagnosis Code N28.9

Disorder of kidney and ureter, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • N28.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM N28.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of N28.9 - other international versions of ICD-10 N28.9 may differ.
Applicable To
  • Nephropathy NOS
  • Renal disease (acute) NOS
  • Renal insufficiency (acute)
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as N28.9. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • chronic renal insufficiency (
    ICD-10-CM Diagnosis Code N18.9

    Chronic kidney disease, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Chronic renal disease
    • Chronic renal failure NOS
    • Chronic renal insufficiency
    • Chronic uremia NOS
    • Diffuse sclerosing glomerulonephritis NOS
    N18.9
    )
  • unspecified nephritic syndrome (
    ICD-10-CM Diagnosis Code N05
    • N05 Unspecified nephritic syndrome
      • N05.0 Unspecified nephritic syndrome with minor glo...
      • N05.1 Unspecified nephritic syndrome with focal and...
      • N05.2 Unspecified nephritic syndrome with diffuse m...
      • N05.3 Unspecified nephritic syndrome with diffuse m...
      • N05.4 Unspecified nephritic syndrome with diffuse e...
      • N05.5 Unspecified nephritic syndrome with diffuse m...
      • N05.6 Unspecified nephritic syndrome with dense dep...
      • N05.7 Unspecified nephritic syndrome with diffuse c...
      • N05.8 Unspecified nephritic syndrome with other mor...
      • N05.9 Unspecified nephritic syndrome with unspecifi...
    N05.-
    )
The following code(s) above N28.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to N28.9:
  • N00-N99
    2020 ICD-10-CM Range N00-N99

    Diseases of the genitourinary system

    Type 2 Excludes
    • 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)
    Diseases of the genitourinary system
  • N25-N29
    2020 ICD-10-CM Range N25-N29

    Other disorders of kidney and ureter

    Type 2 Excludes
    • disorders of kidney and ureter with urolithiasis (N20-N23)
    Other disorders of kidney and ureter
Approximate Synonyms
  • Acquired immune deficiency syndrome-related nephropathy
  • Acute renal failure syndrome
  • Chronic gout due to renal impairment w tophi
  • Chronic gouty nephropathy
  • Chronic tophaceous gout due to renal impairment
  • Disorder of ureter
  • Kidney disease
  • Kidney lesion
  • Nephropathy
  • Nephropathy due to hiv
  • Nephropathy, gouty, chronic
  • Renal function impaired
  • Renal impairment
  • Renal insufficiency, acute
  • Ureteral disorder
Clinical Information
  • A neoplastic or non-neoplastic condition affecting the kidney. Representative examples of non-neoplastic conditions include glomerulonephritis and nephrotic syndrome. Representative examples of neoplastic conditions include benign processes (e.g., renal lipoma and renal fibroma) and malignant processes (e.g., renal cell carcinoma and renal lymphoma).
  • A term referring to any disease affecting the kidneys.
  • Conditions in which the function of kidneys deteriorates suddenly in a matter of days or even hours. It is characterized by the sudden drop in glomerular filtration rate.
  • Impairment of health or a condition of abnormal functioning of the kidney.
  • Pathological processes of the kidney or its component tissues.
  • Your kidneys are two bean-shaped organs, each about the size of your fists. They are located near the middle of your back, just below the rib cage. Inside each kidney about a million tiny structures called nephrons filter blood. They remove waste products and extra water, which become urine. The urine flows through tubes called ureters to your bladder, which stores the urine until you go to the bathroom. Most kidney diseases attack the nephrons. This damage may leave kidneys unable to remove wastes. Causes can include genetic problems, injuries, or medicines. You are at greater risk for kidney disease if you have diabetes, high blood pressure, or a close family member with kidney disease. chronic kidney disease damages the nephrons slowly over several years. Other kidney problems include:
    • cancer
    • cysts
    • stones
    • infections
    your doctor can run tests to find out if you have kidney disease. If your kidneys fail completely, a kidney transplant or dialysis can replace the work your kidneys normally do.
ICD-10-CM N28.9 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 698 Other kidney and urinary tract diagnoses with mcc
  • 699 Other kidney and urinary tract diagnoses with cc
  • 700 Other kidney and urinary tract diagnoses without cc/mcc

Convert N28.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to N28.9:
  • Type 1 Excludes: N19
    , N05
    , N05
    ICD-10-CM Diagnosis Code N19

    Unspecified kidney failure

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Uremia NOS
    Type 1 Excludes
    • acute kidney failure (N17.-)
    • chronic kidney disease (N18.-)
    • chronic uremia (N18.9)
    • extrarenal uremia (R39.2)
    • prerenal uremia (R39.2)
    • renal insufficiency (acute) (N28.9)
    • uremia of newborn (P96.0)
    ICD-10-CM Diagnosis Code N05

    Unspecified nephritic syndrome

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • glomerular disease NOS
    • glomerulonephritis NOS
    • nephritis NOS
    • nephropathy NOS and renal disease NOS with morphological lesion specified in .0-.8
    Type 1 Excludes
    • nephropathy NOS with no stated morphological lesion (N28.9)
    • renal disease NOS with no stated morphological lesion (N28.9)
    • tubulo-interstitial nephritis NOS (N12)
    ICD-10-CM Diagnosis Code N05

    Unspecified nephritic syndrome

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • glomerular disease NOS
    • glomerulonephritis NOS
    • nephritis NOS
    • nephropathy NOS and renal disease NOS with morphological lesion specified in .0-.8
    Type 1 Excludes
    • nephropathy NOS with no stated morphological lesion (N28.9)
    • renal disease NOS with no stated morphological lesion (N28.9)
    • tubulo-interstitial nephritis NOS (N12)

Diagnosis Index entries containing back-references to N28.9:

ICD-10-CM Codes Adjacent To N28.9
N28.0 Ischemia and infarction of kidney
N28.1 Cyst of kidney, acquired
N28.8 Other specified disorders of kidney and ureter
N28.81 Hypertrophy of kidney
N28.82 Megaloureter
N28.83 Nephroptosis
N28.84 Pyelitis cystica
N28.85 Pyeloureteritis cystica
N28.86 Ureteritis cystica
N28.89 Other specified disorders of kidney and ureter
N28.9 Disorder of kidney and ureter, unspecified
N29 Other disorders of kidney and ureter in diseases classified elsewhere
N30 Cystitis
N30.0 Acute cystitis
N30.00 …… without hematuria
N30.01 …… with hematuria
N30.1 Interstitial cystitis (chronic)
N30.10 …… without hematuria
N30.11 …… with hematuria
N30.2 Other chronic cystitis
N30.20 …… without hematuria

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.