2019/2020

  1. ICD-10-CM Codes
    2. ›
  2. N00-N99 Diseases of the genitourinary system
    3. ›
  3. N10-N16 Renal tubulo-interstitial diseases
    4. ›
  4. N13- Obstructive and reflux uropathy
    5. ›

2020 ICD-10-CM Diagnosis Code N13.2

Hydronephrosis with renal and ureteral calculous obstruction

    2016 2017 2018 2019 2020 Billable/Specific Code
  • N13.2 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 N13.2 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of N13.2 - other international versions of ICD-10 N13.2 may differ.
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 N13.2. 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.
  • Hydronephrosis with renal and ureteral calculous obstruction with infection (
    ICD-10-CM Diagnosis Code N13.6

    Pyonephrosis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Conditions in N13.0-N13.5 with infection
    • Obstructive uropathy with infection
    Use Additional
    • code (B95-B97), to identify infectious agent.
    N13.6
    )
The following code(s) above N13.2 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 N13.2:
  • 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
  • N13
    ICD-10-CM Diagnosis Code N13

    Obstructive and reflux uropathy

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • calculus of kidney and ureter without hydronephrosis (N20.-)
    • congenital obstructive defects of renal pelvis and ureter (Q62.0-Q62.3)
    • hydronephrosis with ureteropelvic junction obstruction (Q62.11)
    • obstructive pyelonephritis (N11.1)
    Obstructive and reflux uropathy
Approximate Synonyms
  • Hydronephrosis with obstruction by stones
ICD-10-CM N13.2 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 693 Urinary stones with mcc
  • 694 Urinary stones without mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert N13.2 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 N13.2:
  • Type 1 Excludes: N20
    ICD-10-CM Diagnosis Code N20

    Calculus of kidney and ureter

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Calculous pyelonephritis
    Type 1 Excludes
    • nephrocalcinosis (E83.5)
    • that with hydronephrosis (N13.2)
  • Type 2 Excludes: N13.0
    ICD-10-CM Diagnosis Code N13.0

    Hydronephrosis with ureteropelvic junction obstruction

      2017 - New Code 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Hydronephrosis due to acquired occlusion of ureteropelvic junction
    Type 2 Excludes
    • Hydronephrosis with ureteropelvic junction obstruction due to calculus (N13.2)

Diagnosis Index entries containing back-references to N13.2:
  • Calculus, calculi, calculous
    • ureter (impacted) (recurrent) N20.1
      ICD-10-CM Diagnosis Code N20.1

      Calculus of ureter

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Ureteric stone
    • urinary (duct) (impacted) (passage) (tract) N20.9
      ICD-10-CM Diagnosis Code N20.9

      Urinary calculus, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
  • Hydronephrosis (atrophic) (early) (functionless) (intermittent) (primary) (secondary) N13.30
    ICD-10-CM Diagnosis Code N13.30

    Unspecified hydronephrosis

      2016 2017 2018 2019 2020 Billable/Specific Code
    • with
      • obstruction (by) (of)
        • renal calculus N13.2
        • ureteral NEC N13.1
          ICD-10-CM Diagnosis Code N13.1

          Hydronephrosis with ureteral stricture, not elsewhere classified

            2016 2017 2018 2019 2020 Billable/Specific Code
          Type 1 Excludes
          • Hydronephrosis with ureteral stricture with infection (N13.6)
  • Ureteritis N28.89
    ICD-10-CM Diagnosis Code N28.89

    Other specified disorders of kidney and ureter

      2016 2017 2018 2019 2020 Billable/Specific Code
    • due to calculus N20.1
      ICD-10-CM Diagnosis Code N20.1

      Calculus of ureter

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Ureteric stone
      • with calculus, kidney N20.2
        ICD-10-CM Diagnosis Code N20.2

        Calculus of kidney with calculus of ureter

          2016 2017 2018 2019 2020 Billable/Specific Code
        • with hydronephrosis N13.2

ICD-10-CM Codes Adjacent To N13.2
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
N13.39 Other hydronephrosis
N13.4 Hydroureter
N13.5 Crossing vessel and stricture of ureter without hydronephrosis
N13.6 Pyonephrosis
N13.7 Vesicoureteral-reflux
N13.70 …… unspecified
N13.71 …… without reflux nephropathy
N13.72 Vesicoureteral-reflux with reflux nephropathy without hydroureter

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

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