2021 ICD-10-CM Diagnosis Code N30.1

Interstitial cystitis (chronic)

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • N30.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM N30.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of N30.1 - other international versions of ICD-10 N30.1 may differ.
The following code(s) above N30.1 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 N30.1:
  • N00-N99
    2021 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
    2021 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


      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Use Additional
    • code to identify infectious agent (B95-B97)
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
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To N30.1
N28.84 Pyelitis cystica
N28.85 Pyeloureteritis cystica
N28.86 Ureteritis cystica
N28.89 Other specified disorders of kidney and ureter
N28.9 Disorder of kidney and ureter, unspecified
N29 Other disorders of kidney and ureter in diseases classified elsewhere
N30 Cystitis
N30.0 Acute cystitis
N30.00 …… without hematuria
N30.01 …… with hematuria
N30.1 Interstitial cystitis (chronic)
N30.10 …… without hematuria
N30.11 …… with hematuria
N30.2 Other chronic cystitis
N30.20 …… without hematuria
N30.21 …… with hematuria
N30.3 Trigonitis
N30.30 …… without hematuria
N30.31 …… with hematuria
N30.4 Irradiation cystitis
N30.40 …… without hematuria

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