U.S. ICD-10-CM · FY 2027

N33 ICD-10-CM Code: Bladder disorders in diseases classified elsewhere

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

N33

Bladder disorders in diseases classified elsewhere

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where N33 sits

  1. 1

    Chapter 14

    Diseases of the genitourinary system (N00-N99)

  2. 2

    Section

    Other diseases of the urinary system (N30-N39)

  3. 3

    Category N33

    Bladder disorders in diseases classified elsewhere

  4. 4

    Code N33

    Bladder disorders in diseases classified elsewhere

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for N33.

Code first

  • underlying disease, such as:
  • schistosomiasis (B65.0-B65.9)

Use additional code

No “use additional code” instruction is listed for N33.

Excludes1

Conditions that should not be reported together with this code.

  • bladder disorder in syphilis (A52.76)
  • bladder disorder in tuberculosis (A18.12)
  • candidal cystitis (B37.41)
  • chlamydial cystitis (A56.01)
  • cystitis in gonorrhea (A54.01)
  • cystitis in neurogenic bladder (N31.-)
  • diphtheritic cystitis (A36.85)
  • syphilitic cystitis (A52.76)
  • trichomonal cystitis (A59.03)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for N33.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code N33 mean?

N33 is the FY 2027 U.S. ICD-10-CM code for “Bladder disorders in diseases classified elsewhere.”

Is N33 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, N33 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is N33 located in ICD-10-CM?

N33 is listed in Chapter 14, Diseases of the genitourinary system (N00-N99), within Other diseases of the urinary system (N30-N39) (N30–N39), under category N33, Bladder disorders in diseases classified elsewhere.

What coding notes are listed for N33?

No inclusion terms are listed for N33 in this reference record. Code-first instructions: underlying disease, such as:; schistosomiasis (B65.0-B65.9). Excludes1 notes: bladder disorder in syphilis (A52.76); bladder disorder in tuberculosis (A18.12); candidal cystitis (B37.41); chlamydial cystitis (A56.01); cystitis in gonorrhea (A54.01); cystitis in neurogenic bladder (N31.-); diphtheritic cystitis (A36.85); syphilitic cystitis (A52.76); trichomonal cystitis (A59.03). No Excludes2 note is listed.

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