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ICD-10-CM Codes
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N00-N99
Diseases of the genitourinary system
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N10-N16
Renal tubulo-interstitial diseases
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N13-
Obstructive and reflux uropathy
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2018 ICD-10-CM Diagnosis Code N13.6
Pyonephrosis
2016 2017 2018 Billable/Specific Code
- N13.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2018 edition of ICD-10-CM N13.6 became effective on October 1, 2017.
- This is the American ICD-10-CM version of N13.6 - other international versions of ICD-10 N13.6 may differ.
Use AdditionalUse Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
- code (B95-B97
ICD-10-CM Range B95-B97
Bacterial and viral infectious agentsNote- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
- B95 Streptococcus, Staphylococcus, and Enter...
- B96 Other bacterial agents as the cause of d...
- B97 Viral agents as the cause of diseases cl...
The following code(s) above
N13.6 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
N13.6:
- N00-N99
2018 ICD-10-CM Range N00-N99
Diseases of the genitourinary systemType 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)
- N10-N16
2018 ICD-10-CM Range N10-N16
Renal tubulo-interstitial diseasesType 1 Excludes- pyeloureteritis cystica (N28.85)
- N13
ICD-10-CM Diagnosis Code N13
Obstructive and reflux uropathy
2016 2017 2018 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)
- Distention of kidney with the presence of pus and suppurative destruction of the renal parenchyma. It is often associated with renal obstruction and can lead to total or nearly total loss of renal function.
ICD-10-CM N13.6 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):
- 689 Kidney and urinary tract infections with mcc
- 690 Kidney and urinary tract infections without mcc
- 793 Full term neonate with major problems
Convert N13.6 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
Code annotations containing back-references to N13.6:
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Type 1 Excludes: N13.4, N13.5, M72.8, N13.1, N13.2, N13.3
ICD-10-CM Diagnosis Code N13.4
Hydroureter
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- congenital hydroureter (Q62.3-)
- hydroureter with infection (N13.6)
- vesicoureteral-reflux with hydroureter (N13.73-)
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
ICD-10-CM Diagnosis Code M72.8
Other fibroblastic disorders
2016 2017 2018 Billable/Specific Code
Applicable To- Abscess of fascia
- Fasciitis NEC
- Other infective fasciitis
Type 1 Excludes- diffuse (eosinophilic) fasciitis (M35.4)
- necrotizing fasciitis (M72.6)
- nodular fasciitis (M72.4)
- perirenal fasciitis NOS (N13.5)
- perirenal fasciitis with infection (N13.6)
- plantar fasciitis (M72.2)
Use Additional- code to (B95.-, B96.-) identify causative organism
ICD-10-CM Diagnosis Code N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with ureteral stricture with infection (N13.6)
ICD-10-CM Diagnosis Code N13.2
Hydronephrosis with renal and ureteral calculous obstruction
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)
ICD-10-CM Diagnosis Code N13.3
Other and unspecified hydronephrosis
2016 2017 2018 Non-Billable/Non-Specific Code
Type 1 Excludes- hydronephrosis with infection (N13.6)
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
ICD-10-CM Diagnosis Code L02.91
Cutaneous abscess, unspecified
2016 2017 2018 Billable/Specific Code
- kidney N15.1
ICD-10-CM Diagnosis Code N15.1
Renal and perinephric abscess
2016 2017 2018 Billable/Specific Code
- with calculus N20.0
ICD-10-CM Diagnosis Code N20.0
Calculus of kidney
2016 2017 2018 Billable/Specific Code
Applicable To- Nephrolithiasis NOS
- Renal calculus
- Renal stone
- Staghorn calculus
- Stone in kidney
- with hydronephrosis N13.6
- Angulation
- ureter N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Calculus, calculi, calculous
- ureter (impacted) (recurrent) N20.1
ICD-10-CM Diagnosis Code N20.1
Calculus of ureter
2016 2017 2018 Billable/Specific Code
- with calculus, kidney N20.2
ICD-10-CM Diagnosis Code N20.2
Calculus of kidney with calculus of ureter
2016 2017 2018 Billable/Specific Code
- with hydronephrosis N13.2
ICD-10-CM Diagnosis Code N13.2
Hydronephrosis with renal and ureteral calculous obstruction
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)
- urinary (duct) (impacted) (passage) (tract) N20.9
ICD-10-CM Diagnosis Code N20.9
Urinary calculus, unspecified
2016 2017 2018 Billable/Specific Code
- with hydronephrosis N13.2
ICD-10-CM Diagnosis Code N13.2
Hydronephrosis with renal and ureteral calculous obstruction
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)
- Constriction - see also Stricture
- ureter N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Contraction(s)
- ureterovesical orifice (postinfectional) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Fasciitis M72.9
ICD-10-CM Diagnosis Code M72.9
Fibroblastic disorder, unspecified
2016 2017 2018 Billable/Specific Code
Applicable To- Fasciitis NOS
- Fibromatosis NOS
- perirenal (with ureteral obstruction) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Fibrosis, fibrotic
- retroperitoneal, idiopathic (with ureteral obstruction) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Hydronephrosis (atrophic) (early) (functionless) (intermittent) (primary) (secondary) N13.30
ICD-10-CM Diagnosis Code N13.30
Unspecified hydronephrosis
2016 2017 2018 Billable/Specific Code
- with
- obstruction (by) (of)
- renal calculus N13.2
ICD-10-CM Diagnosis Code N13.2
Hydronephrosis with renal and ureteral calculous obstruction
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)
- ureteral NEC N13.1
ICD-10-CM Diagnosis Code N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with ureteral stricture with infection (N13.6)
- calculus N13.2
ICD-10-CM Diagnosis Code N13.2
Hydronephrosis with renal and ureteral calculous obstruction
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)
- with infection N13.6
- ureteropelvic junction (congenital) Q62.11
ICD-10-CM Diagnosis Code Q62.11
Congenital occlusion of ureteropelvic junction
2016 2017 2018 Billable/Specific Code POA Exempt
- acquired N13.0
ICD-10-CM Diagnosis Code N13.0
Hydronephrosis with ureteropelvic junction obstruction
2017 - New Code 2018 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)
- ureteral stricture NEC N13.1
ICD-10-CM Diagnosis Code N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with ureteral stricture with infection (N13.6)
- infection N13.6
- Hydropyonephrosis N13.6
- Hydroureter N13.4 - see also Hydronephrosis
ICD-10-CM Diagnosis Code N13.4
Hydroureter
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- congenital hydroureter (Q62.3-)
- hydroureter with infection (N13.6)
- vesicoureteral-reflux with hydroureter (N13.73-)
- Infection, infected, infective (opportunistic) B99.9
ICD-10-CM Diagnosis Code B99.9
Unspecified infectious disease
2016 2017 2018 Billable/Specific Code
- kidney (cortex) (hematogenous) N15.9
ICD-10-CM Diagnosis Code N15.9
Renal tubulo-interstitial disease, unspecified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- urinary tract infection NOS (N39.0)
- with calculus N20.0
ICD-10-CM Diagnosis Code N20.0
Calculus of kidney
2016 2017 2018 Billable/Specific Code
Applicable To- Nephrolithiasis NOS
- Renal calculus
- Renal stone
- Staghorn calculus
- Stone in kidney
- with hydronephrosis N13.6
- Kink, kinking
- ureter (pelvic junction) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- with
- hydronephrosis N13.1
ICD-10-CM Diagnosis Code N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with ureteral stricture with infection (N13.6)
- Narrowing - see also Stenosis
- ureter N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Obliteration
- ureter N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Obstruction, obstructed, obstructive
- ureter (functional) (pelvic junction) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- with
- hydronephrosis N13.1
ICD-10-CM Diagnosis Code N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with ureteral stricture with infection (N13.6)
- Ormond's disease (with ureteral obstruction) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Prolapse, prolapsed
- ureter N28.89
ICD-10-CM Diagnosis Code N28.89
Other specified disorders of kidney and ureter
2016 2017 2018 Billable/Specific Code
- with obstruction N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- Pyohydronephrosis N13.6
- Pyonephrosis N13.6
- Stricture - see also Stenosis
- ureter (postoperative) N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
- with
- hydronephrosis N13.1
ICD-10-CM Diagnosis Code N13.1
Hydronephrosis with ureteral stricture, not elsewhere classified
2016 2017 2018 Billable/Specific Code
Type 1 Excludes- Hydronephrosis with ureteral stricture with infection (N13.6)
- ureterovesical orifice N13.5
ICD-10-CM Diagnosis Code N13.5
Crossing vessel and stricture of ureter without hydronephrosis
2016 2017 2018 Billable/Specific Code
Applicable To- Kinking and stricture of ureter without hydronephrosis
Type 1 Excludes- Crossing vessel and stricture of ureter without hydronephrosis with infection (N13.6)
ICD-10-CM Codes Adjacent To N13.6
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
N13.5 Crossing vessel and stricture of ureter without hydronephrosis
N13.6
Pyonephrosis
N13.7 Vesicoureteral-reflux
N13.71 …… without reflux nephropathy
N13.72 Vesicoureteral-reflux with reflux nephropathy without hydroureter
N13.73 Vesicoureteral-reflux with reflux nephropathy with hydroureter
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
