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N33

Billable

Bladder disorders in diseases classified elsewhere

N33 is the ICD-10-CM code for Bladder disorders in diseases classified elsewhere. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
N00-N99
Edition
FY2026

N00-N99 Diseases of the genitourinary system

What this means — in plain language

MedlinePlus · NIH

The bladder is a hollow organ in your lower abdomen that stores urine. Many conditions can affect your bladder. Some common ones are: Cystitis - inflammation of the bladder, often from an infection Urinary incontinence - loss of bladder control Overactive bladder - a condition in which the bladder squeezes urine out at the wrong time Interstitial cystitis - a chronic problem that causes bladder pain and frequent,…

Read more about Bladder Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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)

Code first

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

Frequently asked questions

What is ICD-10 code N33?
N33 is the ICD-10-CM code for "Bladder disorders in diseases classified elsewhere". It falls under N00-N99 Diseases of the genitourinary system.
Is N33 a billable code?
Yes — N33 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from N33?
Excludes1 (not coded here): bladder disorder in syphilis (A52.76); bladder disorder in tuberculosis (A18.12); candidal cystitis (B37.41); chlamydial cystitis (A56.01).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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