N35 Urethral stricture

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Urethral stricture is N35 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
N30-N39: Other diseases of the urinary system (N30-N39)
Category N35
39 codes (29 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with N35.
  • congenital urethral stricture (Q64.3-)
  • postprocedural urethral stricture (N99.1-)

Official Coding Guidelines

CKD staging and code assignment (N18.-)

The ICD-10-CM classifies CKD based on severity. The severity of CKD is designated by stages 1-5. Stage 2, code N18.2, equates to mild CKD; stage 3, codes N18.30-N18.32, equate to moderate CKD; and stage 4, code N18.4, equates to severe CKD. Code N18.6, End stage renal disease (ESRD), is assigned when the provider has documented end- stage renal disease (ESRD).

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.14.a.1
CKD stage plus ESRD: assign N18.6 only

If both a stage of CKD and ESRD are documented, assign code N18.6 only.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.14.a.1

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

N35.0 Post-traumatic urethral stricture N35.01 Post-traumatic urethral stricture, male N35.010 Post-traumatic urethral stricture, male, meatal N35.011 Post-traumatic bulbous urethral stricture N35.012 Post-traumatic membranous urethral stricture N35.013 Post-traumatic anterior urethral stricture N35.014 Post-traumatic urethral stricture, male, unspecified N35.016 Post-traumatic urethral stricture, male, overlapping sites N35.02 Post-traumatic urethral stricture, female N35.021 Urethral stricture due to childbirth N35.028 Other post-traumatic urethral stricture, female N35.1 Postinfective urethral stricture, not elsewhere classified N35.11 Postinfective urethral stricture, not elsewhere classified, male N35.111 Postinfective urethral stricture, not elsewhere classified, male, meatal N35.112 Postinfective bulbous urethral stricture, not elsewhere classified, male N35.113 Postinfective membranous urethral stricture, not elsewhere classified, male N35.114 Postinfective anterior urethral stricture, not elsewhere classified, male N35.116 Postinfective urethral stricture, not elsewhere classified, male, overlapping sites N35.119 Postinfective urethral stricture, not elsewhere classified, male, unspecified N35.12 Postinfective urethral stricture, not elsewhere classified, female N35.8 Other urethral stricture N35.81 Other urethral stricture, male N35.811 Other urethral stricture, male, meatal N35.812 Other bulbous urethral stricture, male N35.813 Other membranous urethral stricture, male N35.814 Other anterior urethral stricture, male N35.816 Other urethral stricture, male, overlapping sites N35.819 Other urethral stricture, male, unspecified site N35.82 Other urethral stricture, female N35.9 Urethral stricture, unspecified

Related Codes in N35

N35.0 Post-traumatic urethral stricture N35.01 Post-traumatic urethral stricture, male N35.010 Post-traumatic urethral stricture, male, meatal N35.011 Post-traumatic bulbous urethral stricture N35.012 Post-traumatic membranous urethral stricture N35.013 Post-traumatic anterior urethral stricture N35.014 Post-traumatic urethral stricture, male, unspecified N35.016 Post-traumatic urethral stricture, male, overlapping sites N35.02 Post-traumatic urethral stricture, female N35.021 Urethral stricture due to childbirth N35.028 Other post-traumatic urethral stricture, female N35.1 Postinfective urethral stricture, not elsewhere classified N35.11 Postinfective urethral stricture, not elsewhere classified, male N35.111 Postinfective urethral stricture, not elsewhere classified, male, meatal N35.112 Postinfective bulbous urethral stricture, not elsewhere classified, male N35.113 Postinfective membranous urethral stricture, not elsewhere classified, male N35.114 Postinfective anterior urethral stricture, not elsewhere classified, male N35.116 Postinfective urethral stricture, not elsewhere classified, male, overlapping sites N35.119 Postinfective urethral stricture, not elsewhere classified, male, unspecified N35.12 Postinfective urethral stricture, not elsewhere classified, female
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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