ICDcodes.org
FY2027

N13.9 — Obstructive and reflux uropathy, unspecified

BillableUnspecified

Is N13.9 billable?

Yes, but N13.9 is an unspecified code. N13.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, N13.9 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting N13.9 — the more specific alternatives are listed below.

N13.9 at a glance

CodeN13.9
DescriptionObstructive and reflux uropathy, unspecified
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does N13.9 group to?

N13.9 sits in MDC 11 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 698Other Kidney and Urinary Tract Diagnoses with MCCmedical
  • 699Other Kidney and Urinary Tract Diagnoses with CCmedical
  • 700Other Kidney and Urinary Tract Diagnoses without CC/MCCmedical

How is N13.9 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to N13.9. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Obstruction, obstructed, obstructive › urinary
  • Obstruction, obstructed, obstructive › uropathy
  • Uropathy › obstructive
  • Uropathy › reflux
  • Obstruction, obstructed, obstructive › urinary › organ or tract

Inclusion terms

Alternative wording in documentation that is classified to N13.9.

  • Urinary tract obstruction NOS

Excludes1 — never code together — inherited from N10-N16

The conditions below can never be reported together with N13.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • pyeloureteritis cystica (N28.85)

Excludes2 — not included here — inherited from Chapter 14

The conditions below are not part of N13.9, but a patient may have both at the same time. When documentation supports it, N13.9 and the excluded code may both 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)

Excludes2 — not included here — inherited from N13

The conditions below are not part of N13.9, but a patient may have both at the same time. When documentation supports it, N13.9 and the excluded code may both be reported.

  • 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)

How long has N13.9 existed?

N13.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to N13.9?

What other codes are in the N13 family? (9)