2027 ICD-10-CM Diagnosis Code N35Urethral stricture

ICD-10-CM Codes›N00–N99›N30-N39›N35

ICD-10-CM N35
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

N35 is a non-billable ICD-10-CM category code for urethral stricture, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N35.010, N35.011, N35.012, and N35.013.

Code Identity

ICD-10-CM Code
N35
Billable Status
No — Non-Billable Category
Code Describes
Urethral stricture
Short Description
Urethral stricture
Same as the full description in the CMS dataset.
Chapter
N30-N39
Other diseases of the urinary system

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN30-N39Other diseases of the urinary system
CategoryN35Urethral stricture
This CodeN35Urethral stricture

Specific Coding for Urethral strictureOverview

Non-specific codes like N35 require more characters. Use one of these billable codes instead:

  • N35.0 for Post-traumatic urethral stricture

  • N35.01 for Post-traumatic urethral stricture, male

  • N35.02 for Post-traumatic urethral stricture, female

  • N35.1 for Postinfective urethral stricture, not elsewhere classified

  • N35.11 for Postinfective urethral stricture, not elsewhere classified, male

  • Use N35.12 for Postinfective urethral stricture, not elsewhere classified, female

  • N35.8 for Other urethral stricture

  • N35.81 for Other urethral stricture, male

  • Use N35.82 for Other urethral stricture, female

  • N35.9 for Urethral stricture, unspecified

  • N35.91 for Urethral stricture, unspecified, male

  • Use N35.92 for Unspecified urethral stricture, female

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to N35: its own notes plus those printed at block N30-N39 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • congenital urethral stricture (Q64.3-)
  • postprocedural urethral stricture (N99.1-)

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.

From Block N30-N39 Other diseases of the urinary system applies to 85 codes
  • urinary infection (complicating):
  • abortion or ectopic or molar pregnancy (O00-O07, O08.8)
  • pregnancy, childbirth and the puerperium (O23.-, O75.3, O86.2-)
From Chapter 14 (N00-N99) Diseases of the genitourinary system applies to 838 codes
  • 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.

Clinical InformationClinical

  • Urethral Stricture

    narrowing of any part of the urethra. it is characterized by decreased urinary stream and often other obstructive voiding symptoms.

Patient EducationClinical

Urethral Disorders

The urethra is the tube that allows urine to pass out of the body. In men, it's a long tube that runs through the penis. It also carries semen in men. In women, it's short and is just above the vagina. Urethral problems may happen due to aging, illness, or injury. They include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About N35Overview

What is the ICD-10 code for urethral stricture?

N35 is the ICD-10-CM category for urethral stricture, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is N35 (Urethral stricture) a billable code?

No. This is a category header that groups the codes for urethral stricture, and headers cannot be submitted on claims. Claims for urethral stricture need a more specific code from this category, such as N35.010, N35.011, and N35.012.

Can N35 be reported with a code from Q64.3?

Not as a rule. The Excludes1 note on N35 lists "congenital urethral stricture (Q64.3-)". 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).