ICD-10-CM 2027 diagnosis code
N35.113Postinfective membranous urethral stricture, not elsewhere classified, male
N35.113 is a valid, billable ICD-10-CM code for postinfective membranous urethral stricture, not elsewhere classified, male. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Postinfective membranous urethral stricture, NEC, male
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About N35.113
N35.113 is the ICD-10-CM diagnosis code for postinfective membranous urethral stricture, not elsewhere classified, male. It belongs to category N35 (urethral stricture), block N30-N39 (other diseases of the urinary system) and chapter 14 (diseases of the genitourinary system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within N35.11 (postinfective urethral stricture, not elsewhere classified, male), N35.113 is specifically for postinfective membranous urethral stricture, not elsewhere classified, male. Related codes cover meatal (N35.111), bulbous urethral stricture, not elsewhere classified, male (N35.112), anterior urethral stricture, not elsewhere classified, male (N35.114), overlapping sites (N35.116) and unspecified (N35.119).
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 697 (Urethral Stricture, relative weight 0.97), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is on the CMS list of diagnoses consistent only with male patients (the sex-conflict edit itself was retired in FY2025).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2018 (title revised).
Before ICD-10, this condition was coded in ICD-9-CM as 598.00 (urethral stricture due to unspecified infection).
Notes that apply from higher levels
Instructions written at a parent level also apply to N35.113.
› From N35 Urethral stricture
Broader instructions also apply from N30-N39 Other diseases of the urinary system and Chapter 14: Diseases of the genitourinary system.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to N35.113.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 11 · Diseases and Disorders of the Kidney and Urinary Tract
ICD-9-CM equivalent
Converter →- 598.00Urethral stricture due to unspecified infectionapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2018 (effective 10/1/2017): Title revised — was “Postinfective membranous urethral stricture, not elsewhere classified”
Common questions about N35.113
Is N35.113 billable?
- Yes. N35.113 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N35.113 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N35.113 as a principal diagnosis.
Is N35.113 a CC or MCC?
- No. N35.113 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does N35.113 group to?
- N35.113 is used in the MS-DRG v44.0 logic for MS-DRG 697 (Urethral Stricture). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for N35.113?
- The CMS General Equivalence Mappings map N35.113 to ICD-9-CM 598.00.