2027 ICD-10-CM Diagnosis Code N13.70Vesicoureteral-reflux, unspecified
ICD-10-CM Codes›N00–N99›N10-N16›N13
- Billable — Valid for Submission
- Chronic Condition
N13.70 is a billable ICD-10-CM diagnosis code for vesicoureteral-reflux, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 698 through 700. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Vesicoureteral reflux.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Post-renal transplant vesicoureteric reflux
- Post-surgical vesicoureteric reflux
- Primary vesicoureteric reflux
- Renal scarring
- Renal scarring due to vesicoureteral reflux
- Secondary left vesicoureteral reflux
- Secondary left vesicoureteral reflux grade 1
- Secondary left vesicoureteral reflux grade 1 measured by voiding cystourethrography
- Secondary left vesicoureteral reflux grade 2
- Secondary left vesicoureteral reflux grade 2 measured by radionuclide cystogram
- Secondary left vesicoureteral reflux grade 2 measured by voiding cystourethrography
- Secondary left vesicoureteral reflux grade 3
- Secondary left vesicoureteral reflux grade 3 measured by radionuclide cystogram
- Secondary left vesicoureteral reflux grade 3 measured by voiding cystourethrography
- Secondary left vesicoureteral reflux grade 4
- Secondary left vesicoureteral reflux grade 4 measured by voiding cystourethrography
- Secondary left vesicoureteral reflux grade 5
- Secondary left vesicoureteral reflux grade 5 measured by voiding cystourethrography
- Secondary right vesicoureteral reflux
- Secondary right vesicoureteral reflux grade 1
- Secondary right vesicoureteral reflux grade 1 measured by radionuclide cystogram
- Secondary right vesicoureteral reflux grade 2
- Secondary right vesicoureteral reflux grade 2 measured by radionuclide cystogram
- Secondary right vesicoureteral reflux grade 2 measured by voiding cystourethrography
- Secondary right vesicoureteral reflux grade 3
- Secondary right vesicoureteral reflux grade 3 measured by voiding cystourethrography
- Secondary right vesicoureteral reflux grade 4
- Secondary right vesicoureteral reflux grade 4 measured by voiding cystourethrography
- Secondary right vesicoureteral reflux grade 5
- Secondary right vesicoureteral reflux grade 5 measured by voiding cystourethrography
- Secondary vesicoureteric reflux
- Vesicoureteric reflux
- Vesicoureteric reflux due to duplicated collecting system
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N13.70: its own notes plus those printed at N13.7, N13, block N10-N16, and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Vesicoureteral-reflux NOS
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- pyeloureteritis cystica (N28.85)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- 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)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N13.70, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming N13.70: they are not reported together with it, unless the two conditions are unrelated.
Code Also 3
These codes say N13.70 may also be needed to fully describe the condition. The note gives no sequencing direction.
- N80.A4 Superficial endometriosis of ureterif applicable, obstructive and reflux uropathy (N13.-) names N13.-, which includes this code
- N80.A5 Deep endometriosis of ureterif applicable, obstructive and reflux uropathy (N13.-) names N13.-, which includes this code
- N80.A6 Endometriosis of ureter, unspecified depthif applicable, obstructive and reflux uropathy (N13.-) names N13.-, which includes this code
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Vesico-Ureteral Reflux
retrograde flow of urine from the urinary bladder into the ureter. this is often due to incompetence of the vesicoureteral valve.
Patient EducationClinical
Ureteral Disorders
Your kidneys make urine by filtering wastes and extra water from your blood. The urine travels from the kidneys to the bladder in two thin tubes called ureters.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N13.70 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N13.70Overview
What is the ICD-10 code for vesicoureteral-reflux, unspecified?
The ICD-10-CM code for vesicoureteral-reflux, unspecified is N13.70 (sometimes written as N1370). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N13.70 (Vesicoureteral-reflux) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report vesicoureteral-reflux, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N13.70 group to?
When vesicoureteral-reflux, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 699, 698, 700, with relative weights from 0.6740 to 1.6400 depending on complications. Higher weights mean higher Medicare reimbursement.
Can N13.70 be reported with N11.0?
Not as a rule. The Excludes1 note at N13.7, which applies to N13.70, lists "reflux-associated pyelonephritis (N11.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of N13.70?
Under the General Equivalence Mappings, vesicoureteral-reflux, unspecified converts to ICD-9-CM 593.70 (vescouretrl rflux unspcf). The mapping is approximate, so confirm the match fits the documentation.
