2017/18 ICD-10-CM Diagnosis Code N33

Bladder disorders in diseases classified elsewhere

ICD-10-CM Coding Rules
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • underlying disease, such as:
  • schistosomiasis (
    ICD-10-CM Diagnosis Code B65.0

    Schistosomiasis due to Schistosoma haematobium [urinary schistosomiasis]

      2016 2017 2018 Billable/Specific Code
    B65.0-
    ICD-10-CM Diagnosis Code B65.9

    Schistosomiasis, unspecified

      2016 2017 2018 Billable/Specific Code
    B65.9
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as N33. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • bladder disorder in syphilis (
    ICD-10-CM Diagnosis Code A52.76

    Other genitourinary symptomatic late syphilis

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Late syphilitic female pelvic inflammatory disease
    A52.76
    )
  • bladder disorder in tuberculosis (
    ICD-10-CM Diagnosis Code A18.12

    Tuberculosis of bladder

      2016 2017 2018 Billable/Specific Code
    A18.12
    )
  • candidal cystitis (
    ICD-10-CM Diagnosis Code B37.41

    Candidal cystitis and urethritis

      2016 2017 2018 Billable/Specific Code
    B37.41
    )
  • chlamydial cystitis (
    ICD-10-CM Diagnosis Code A56.01

    Chlamydial cystitis and urethritis

      2016 2017 2018 Billable/Specific Code
    A56.01
    )
  • cystitis in gonorrhea (
    ICD-10-CM Diagnosis Code A54.01

    Gonococcal cystitis and urethritis, unspecified

      2016 2017 2018 Billable/Specific Code
    A54.01
    )
  • cystitis in neurogenic bladder (
    ICD-10-CM Diagnosis Code N31
    • N31 Neuromuscular dysfunction of bladder, not els...
      • N31.0 Uninhibited neuropathic bladder, not elsewher...
      • N31.1 Reflex neuropathic bladder, not elsewhere cla...
      • N31.2 Flaccid neuropathic bladder, not elsewhere cl...
      • N31.8 Other neuromuscular dysfunction of bladder
      • N31.9 Neuromuscular dysfunction of bladder, unspeci...
    N31.-
    )
  • diphtheritic cystitis (
    ICD-10-CM Diagnosis Code A36.85

    Diphtheritic cystitis

      2016 2017 2018 Billable/Specific Code
    A36.85
    )
  • syphilitic cystitis (
    ICD-10-CM Diagnosis Code A52.76

    Other genitourinary symptomatic late syphilis

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Late syphilitic female pelvic inflammatory disease
    A52.76
    )
  • trichomonal cystitis (
    ICD-10-CM Diagnosis Code A59.03

    Trichomonal cystitis and urethritis

      2016 2017 2018 Billable/Specific Code
    A59.03
    )
The following code(s) above N33 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to N33:
  • N00-N99
    2018 ICD-10-CM Range N00-N99

    Diseases of the genitourinary system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the genitourinary system
  • N30-N39
    2018 ICD-10-CM Range N30-N39

    Other diseases of the urinary system

    Type 1 Excludes
    • urinary infection (complicating):
    • abortion or ectopic or molar pregnancy (O00-O07, O08.8)
    • pregnancy, childbirth and the puerperium (O23.-, O75.3, O86.2-)
    Other diseases of the urinary system
ICD-10-CM N33 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert N33 to ICD-9-CM

Code History
ICD-10-CM Codes Adjacent To N33
N31.9 Neuromuscular dysfunction of bladder, unspecified
N32 Other disorders of bladder
N32.0 Bladder-neck obstruction
N32.1 Vesicointestinal fistula
N32.2 Vesical fistula, not elsewhere classified
N32.3 Diverticulum of bladder
N32.8 Other specified disorders of bladder
N32.81 Overactive bladder
N32.89 Other specified disorders of bladder
N32.9 Bladder disorder, unspecified
N33 Bladder disorders in diseases classified elsewhere
N34 Urethritis and urethral syndrome
N34.0 Urethral abscess
N34.1 Nonspecific urethritis
N34.2 Other urethritis
N34.3 Urethral syndrome, unspecified
N35 Urethral stricture
N35.0 Post-traumatic urethral stricture
N35.01 Post-traumatic urethral stricture, male
N35.010 …… meatal
N35.011 Post-traumatic bulbous urethral stricture

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.