2019 ICD-10-CM Diagnosis Code N27.0

Small kidney, unilateral

    2016 2017 2018 2019 Billable/Specific Code
  • N27.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM N27.0 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of N27.0 - other international versions of ICD-10 N27.0 may differ.
The following code(s) above N27.0 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 N27.0:
  • N00-N99
    2019 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
    2019 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
  • N27
    ICD-10-CM Diagnosis Code N27

    Small kidney of unknown cause

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Includes
    • oligonephronia
    Small kidney of unknown cause
Approximate Synonyms
  • Unilateral small kidney
ICD-10-CM N27.0 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 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 N27.0 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

Diagnosis Index entries containing back-references to N27.0:
  • Small (ness)
    • kidney (unknown cause) N27.9
      ICD-10-CM Diagnosis Code N27.9

      Small kidney, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      • unilateral N27.0

ICD-10-CM Codes Adjacent To N27.0
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
N28.8 Other specified disorders of kidney and ureter
N28.81 Hypertrophy of kidney
N28.82 Megaloureter
N28.83 Nephroptosis
N28.84 Pyelitis cystica

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