Skip to main content

N99.1 ICD-10-CM Code: Postprocedural urethral stricture

Compare with another code for N99.1Check this code on a claim

Billing Status: NO. This is a non-billable ICD-10-CM code: report a more specific billable code beneath it.

Coding at a Glance

Official instructions
1 inclusion term · 3 Excludes2

What these terms mean →

Not billable · FY2027A non-billable heading in the tabular list: report a more specific code beneath it.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too, and is marked with where it comes from.

Excludes2from N99Not included here; may be reported together
  • irradiation cystitis (N30.4-)
  • postoophorectomy osteoporosis with current pathological fracture (M80.8-)
  • postoophorectomy osteoporosis without current pathological fracture (M81.8)
IncludesWhat this code covers
  • Postcatheterization urethral stricture

Where it sits Source: CMS/NCHS

Under:Chapter 14: Diseases of the Genitourinary SystemN99 Intraoperative and postprocedural complications and disorders of genitourinary system, not elsewhere classified

Codes under N99.1 (2)

  • N99.11Postprocedural urethral stricture, maleNot billable
  • N99.12Postprocedural urethral stricture, femaleBillable

Most relevant related codes MedCoder-derived

Read off the official notes above and this code’s own position in the tabular list. Which to report is a documentation question; Compare shows the two side by side.

CompareCheck ClaimView Related Codes

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for N99.1 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on N99.1 itself; “inherited from” names the category or block whose note applies here.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Postcatheterization urethral stricture

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Source: inherited from N99

Coder workflow for N99.1

MedCoder structured workflow — derived from this code’s own official record

Before you code N99.1

  1. N99.1 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewN99.11, N99.12

    See the relationships section · Guide: How to choose an ICD-10-CM code →

Choose the right path

  1. Does the documentation support one of the more specific codes beneath N99.1?
    Yes → Select that code and continue the checks below on its own page.
    No → N99.1 cannot be reported as written. Where the codes beneath it include an unspecified code, that code applies when the record goes no further; otherwise query for the missing detail.

    ReviewN99.11, N99.12

Report the code beneath N99.1 that the documentation supports, not N99.1 itself. Then confirm that code is valid for the date of service on its own page.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

Official instructions as workflow

  • Excludes2 — not part of N99.1(3 notes)

    Coding workflow: The conditions named in this note are not included in N99.1. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

    CompareN30.4, M80.8, M81.8

    See the official tabular notes · Guidelines I.A.12.b

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Don’t confuse N99.1 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of N99.1 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

  • N30.4— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of irradiation cystitis adds N30.4; it is not part of this code and both may be reported when both are documented.

    Full comparison: N99.1 vs N30.4 →

  • M80.8— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of postoophorectomy osteoporosis with current pathological fracture adds M80.8; it is not part of this code and both may be reported when both are documented.

    Full comparison: N99.1 vs M80.8 →

  • M81.8— Excludes2 relationship (Informational)

    Distinct conditions — both may be reported.

    A distinct condition — both may be reported when both are documented.

    What moves you there: Documentation of postoophorectomy osteoporosis without current pathological fracture adds M81.8; it is not part of this code and both may be reported when both are documented.

    Full comparison: N99.1 vs M81.8 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Postprocedural urethral stricture is a non-billable ICD-10-CM category code (N99.1). A more specific billable subcode must be selected for claims submission.

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder-derived relationships — computed from published CMS and AHRQ datasets

Other codes that name N99.1 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes1 note: N35 — Urethral stricture.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 10 Excludes2 notes: T80 — Complications following infusion, transfusion and therapeutic injection (via N99.-), T80-T88 — Complications of surgical and medical care, not elsewhere classified (T80-T88) (via N99.-), T81 — Complications of procedures, not elsewhere classified (via N99.-), T82 — Complications of cardiac and vascular prosthetic devices, implants and grafts (via N99.-), T83 — Complications of genitourinary prosthetic devices, implants and grafts (via N99.-), T84 — Complications of internal orthopedic prosthetic devices, implants and grafts (via N99.-), T85 — Complications of other internal prosthetic devices, implants and grafts (via N99.-), T86 — Complications of transplanted organs and tissue (via N99.-), T87 — Complications peculiar to reattachment and amputation (via N99.-), T88 — Other complications of surgical and medical care, not elsewhere classified (via N99.-).

These codes’ tabular lists name this diagnosis as distinct — both may be reported when both are documented.

Contextual Map

Every relationship of N99.1 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run N99.1 with these 9 related codes in Claim Check

Hierarchy

Referenced by Excludes1 notes

  • N35 — Urethral stricture[Excludes1]: “postprocedural urethral stricture (N99.1-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2027

Referenced by Excludes2 notes (10)

Nearest codes (40)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Common coding questions

MedCoder editorial

Can N99.1 be billed directly?

No. N99.1 (Postprocedural urethral stricture) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "N99.1 — Postprocedural urethral stricture." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/n99.1-postprocedural-urethral-stricture

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Postprocedural urethral stricture

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to N99.1 in its code family, with their registry titles.

View all codes in the N99 family