2026 ICD-10-CM Diagnosis Code N35.021Urethral stricture due to childbirth

ICD-10-CM Codes›N00–N99›N30-N39›N35

ICD-10-CM N35.021
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N35.021 is a billable ICD-10-CM diagnosis code for urethral stricture due to childbirth. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as postobstetric urethral stricture. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified diseases of bladder and urethra.

Code Identity

ICD-10-CM Code
N35.021
Billable Status
Yes — Valid for Submission
Code Describes
Urethral stricture due to childbirth
Short Description
Urethral stricture due to childbirth
Same as the full description in the CMS dataset.
Parent Code
N35.02
Post-traumatic urethral stricture, female

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN30-N39Other diseases of the urinary system
CategoryN35Urethral stricture
This CodeN35.021Urethral stricture due to childbirth

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Postobstetric urethral stricture

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Stricture
      • urethra (organic) (spasmodic)
        • postobstetric
    • Stricture
      • urethra (organic) (spasmodic)
        • post-traumatic
          • female
            • due to childbirth
    • Stricture
      • urethra (organic) (spasmodic)
        • sequela (late effect) of
          • childbirth

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN007
Other specified and unspecified diseases of bladder and urethra
Default principal diagnosis: inpatient Yes · outpatient Yes

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.

Convert N35.021 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
598.1 Traum urethral stricture
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N35.021Overview

Is N35.021 (Post-traumatic urethral stricture, female) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report urethral stricture due to childbirth on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of N35.021?

Under the General Equivalence Mappings, urethral stricture due to childbirth converts to ICD-9-CM 598.1 (traum urethral stricture). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.