ICD-10-CM 2027
ICD-10 code for urinary moderate obstruction
From the official ICD-10-CM alphabetic index entry “Obstruction, obstructed, obstructive › urinary (moderate)”. Page updated September 29, 2026.
About coding urinary moderate obstruction
The ICD-10-CM code for urinary moderate obstruction is N13.9 (Obstructive and reflux uropathy, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on N13.9.
Within N13, choose N13.9 (unspecified) only when documentation doesn't support a more specific option: hydronephrosis with ureteropelvic junction obstruction (N13.0), hydronephrosis with ureteral stricture, not elsewhere classified (N13.1), hydronephrosis with renal and ureteral calculous obstruction (N13.2), other and unspecified hydronephrosis (N13.3), hydroureter (N13.4), Crossing vessel and stricture of ureter without hydronephrosis (N13.5), Pyonephrosis (N13.6), Vesicoureteral-reflux (N13.7) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003), DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific urinary moderate obstruction codes (official index)
Common questions about urinary moderate obstruction ICD-10 codes
What is the ICD-10 code for urinary moderate obstruction?
- N13.9 — Obstructive and reflux uropathy, unspecified. More specific codes apply when the documentation supports them: N13.9, N32.0, N13.8.
What is the ICD-10 code for organ or tract urinary moderate obstruction?
- N13.9 — Obstructive and reflux uropathy, unspecified.
What is the ICD-10 code for prostatic valve urinary moderate obstruction?
- N32.0 — Bladder-neck obstruction.
Is N13.9 billable?
- Yes. N13.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N13.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N13.9 as a principal diagnosis.
Is N13.9 a CC or MCC?
- No. N13.9 is neither a CC nor an MCC under MS-DRG v44.0.