2017/18 ICD-10-CM Diagnosis Code N26

Unspecified contracted kidney

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 N26. 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.
  • contracted kidney due to hypertension (
    ICD-10-CM Diagnosis Code I12
    • I12 Hypertensive chronic kidney disease
      • I12.0 Hypertensive chronic kidney disease with stag...
      • I12.9 Hypertensive chronic kidney disease with stag...
    I12.-
    )
  • diffuse sclerosing glomerulonephritis (
    ICD-10-CM Diagnosis Code N05.8

    Unspecified nephritic syndrome with other morphologic changes

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Unspecified nephritic syndrome with proliferative glomerulonephritis NOS
    N05.8.-
    )
  • hypertensive nephrosclerosis (arteriolar) (arteriosclerotic) (
    ICD-10-CM Diagnosis Code I12
    • I12 Hypertensive chronic kidney disease
      • I12.0 Hypertensive chronic kidney disease with stag...
      • I12.9 Hypertensive chronic kidney disease with stag...
    I12.-
    )
  • small kidney of unknown cause (
    ICD-10-CM Diagnosis Code N27
    • N27 Small kidney of unknown cause
      • N27.0 Small kidney, unilateral
      • N27.1 Small kidney, bilateral
      • N27.9 Small kidney, unspecified
    N27.-
    )
The following code(s) above N26 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 N26:
  • N00-N99
    2018 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
    2018 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
Code History
Code annotations containing back-references to N26:
ICD-10-CM Codes Adjacent To N26
N21.9 Calculus of lower urinary tract, unspecified
N22 Calculus of urinary tract in diseases classified elsewhere
N23 Unspecified renal colic
N25 Disorders resulting from impaired renal tubular function
N25.0 Renal osteodystrophy
N25.1 Nephrogenic diabetes insipidus
N25.8 Other disorders resulting from impaired renal tubular function
N25.81 Secondary hyperparathyroidism of renal origin
N25.89 Other disorders resulting from impaired renal tubular function
N25.9 Disorder resulting from impaired renal tubular function, unspecified
N26 Unspecified contracted kidney
N26.1 Atrophy of kidney (terminal)
N26.2 Page kidney
N26.9 Renal sclerosis, unspecified
N27 Small kidney of unknown cause
N27.0 Small kidney, unilateral
N27.1 Small kidney, bilateral
N27.9 Small kidney, unspecified
N28 Other disorders of kidney and ureter, not elsewhere classified
N28.0 Ischemia and infarction of kidney
N28.1 Cyst of kidney, acquired

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