2020 ICD-10-CM Diagnosis Code N30.9

Cystitis, unspecified

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • N30.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM N30.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of N30.9 - other international versions of ICD-10 N30.9 may differ.
The following code(s) above N30.9 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 N30.9:
  • N00-N99
    2020 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
    2020 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
  • N30
    ICD-10-CM Diagnosis Code N30

    Cystitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Use Additional
    • code to identify infectious agent (B95-B97)
    Cystitis
Clinical Information
  • An acute or chronic inflammatory process affecting the bladder.
  • Inflammation of the urinary bladder, either from bacterial or non-bacterial causes. Cystitis is usually associated with painful urination (dysuria), increased frequency, urgency, and suprapubic pain.
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To N30.9
N30.21 …… with hematuria
N30.3 Trigonitis
N30.30 …… without hematuria
N30.31 …… with hematuria
N30.4 Irradiation cystitis
N30.40 …… without hematuria
N30.41 …… with hematuria
N30.8 Other cystitis
N30.80 …… without hematuria
N30.81 …… with hematuria
N30.9 Cystitis, unspecified
N30.90 …… without hematuria
N30.91 …… with hematuria
N31 Neuromuscular dysfunction of bladder, not elsewhere classified
N31.0 Uninhibited neuropathic bladder, not elsewhere classified
N31.1 Reflex neuropathic bladder, not elsewhere classified
N31.2 Flaccid neuropathic bladder, not elsewhere classified
N31.8 Other neuromuscular dysfunction of bladder
N31.9 Neuromuscular dysfunction of bladder, unspecified
N32 Other disorders of bladder
N32.0 Bladder-neck obstruction

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