2020 ICD-10-CM Diagnosis Code N11.0

Nonobstructive reflux-associated chronic pyelonephritis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • N11.0 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 N11.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of N11.0 - other international versions of ICD-10 N11.0 may differ.
Applicable To
  • Pyelonephritis (chronic) associated with (vesicoureteral) reflux
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 N11.0. 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.
  • vesicoureteral reflux NOS (
    ICD-10-CM Diagnosis Code N13.70

    Vesicoureteral-reflux, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Vesicoureteral-reflux NOS
    N13.70
    )
The following code(s) above N11.0 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 N11.0:
  • 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
  • N10-N16
    2020 ICD-10-CM Range N10-N16

    Renal tubulo-interstitial diseases

    Includes
    • pyelonephritis
    Type 1 Excludes
    • pyeloureteritis cystica (N28.85)
    Renal tubulo-interstitial diseases
  • N11
    ICD-10-CM Diagnosis Code N11

    Chronic tubulo-interstitial nephritis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • chronic infectious interstitial nephritis
    • chronic pyelitis
    • chronic pyelonephritis
    Use Additional
    • code (B95-B97), to identify infectious agent.
    Chronic tubulo-interstitial nephritis
ICD-10-CM N11.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 689 Kidney and urinary tract infections with mcc
  • 690 Kidney and urinary tract infections without mcc

Convert N11.0 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
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to N11.0:
  • Type 1 Excludes: N13.7
    ICD-10-CM Diagnosis Code N13.7

    Vesicoureteral-reflux

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • reflux-associated pyelonephritis (N11.0)

Diagnosis Index entries containing back-references to N11.0:
  • Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) N05.9
    ICD-10-CM Diagnosis Code N05.9

    Unspecified nephritic syndrome with unspecified morphologic changes

      2016 2017 2018 2019 2020 Billable/Specific Code
    • tubulo-interstitial (in) N12
      ICD-10-CM Diagnosis Code N12

      Tubulo-interstitial nephritis, not specified as acute or chronic

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Interstitial nephritis NOS
      • Pyelitis NOS
      • Pyelonephritis NOS
      Type 1 Excludes
      • calculous pyelonephritis (N20.9)
      • chronic (infectious) N11.9
        ICD-10-CM Diagnosis Code N11.9

        Chronic tubulo-interstitial nephritis, unspecified

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Chronic interstitial nephritis NOS
        • Chronic pyelitis NOS
        • Chronic pyelonephritis NOS
        • nonobstructive N11.8
          ICD-10-CM Diagnosis Code N11.8

          Other chronic tubulo-interstitial nephritis

            2016 2017 2018 2019 2020 Billable/Specific Code
          Applicable To
          • Nonobstructive chronic pyelonephritis NOS
          • reflux-associated N11.0
  • Pyelonephritis - see also Nephritis, tubulo-interstitial
    • chronic N11.9
      ICD-10-CM Diagnosis Code N11.9

      Chronic tubulo-interstitial nephritis, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Chronic interstitial nephritis NOS
      • Chronic pyelitis NOS
      • Chronic pyelonephritis NOS
      • nonobstructive N11.8
        ICD-10-CM Diagnosis Code N11.8

        Other chronic tubulo-interstitial nephritis

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Nonobstructive chronic pyelonephritis NOS
        • with reflux N11.0 (vesicoureteral)
    • nonobstructive N12
      ICD-10-CM Diagnosis Code N12

      Tubulo-interstitial nephritis, not specified as acute or chronic

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Interstitial nephritis NOS
      • Pyelitis NOS
      • Pyelonephritis NOS
      Type 1 Excludes
      • calculous pyelonephritis (N20.9)
      • with reflux N11.0 (vesicoureteral)
  • Reflux K21.9
    ICD-10-CM Diagnosis Code K21.9

    Gastro-esophageal reflux disease without esophagitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Esophageal reflux NOS
    • vesicoureteral (with scarring) N13.70
      ICD-10-CM Diagnosis Code N13.70

      Vesicoureteral-reflux, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Vesicoureteral-reflux NOS
      • with
        • pyelonephritis N11.0 (chronic)

ICD-10-CM Codes Adjacent To N11.0
N07.3 Hereditary nephropathy, not elsewhere classified with diffuse mesangial proliferative glomerulonephritis
N07.4 Hereditary nephropathy, not elsewhere classified with diffuse endocapillary proliferative glomerulonephritis
N07.5 Hereditary nephropathy, not elsewhere classified with diffuse mesangiocapillary glomerulonephritis
N07.6 Hereditary nephropathy, not elsewhere classified with dense deposit disease
N07.7 Hereditary nephropathy, not elsewhere classified with diffuse crescentic glomerulonephritis
N07.8 Hereditary nephropathy, not elsewhere classified with other morphologic lesions
N07.9 Hereditary nephropathy, not elsewhere classified with unspecified morphologic lesions
N08 Glomerular disorders in diseases classified elsewhere
N10 Acute pyelonephritis
N11 Chronic tubulo-interstitial nephritis
N11.0 Nonobstructive reflux-associated chronic pyelonephritis
N11.1 Chronic obstructive pyelonephritis
N11.8 Other chronic tubulo-interstitial nephritis
N11.9 Chronic tubulo-interstitial nephritis, unspecified
N12 Tubulo-interstitial nephritis, not specified as acute or chronic
N13 Obstructive and reflux uropathy
N13.0 Hydronephrosis with ureteropelvic junction obstruction
N13.1 Hydronephrosis with ureteral stricture, not elsewhere classified
N13.2 Hydronephrosis with renal and ureteral calculous obstruction
N13.3 Other and unspecified hydronephrosis
N13.30 Unspecified hydronephrosis

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