Skip to content
Dx

ICD-10-CM 2027 diagnosis code

N30.2Other chronic cystitis

Not billable — use a more specific code

N30.2 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N30.2

N30.2 is the ICD-10-CM diagnosis code for other chronic cystitis. It belongs to category N30 (cystitis), block N30-N39 (other diseases of the urinary system) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within N30, choose N30.2 (Other chronic cystitis) only when documentation doesn't support a more specific option: acute cystitis (N30.0), interstitial cystitis (chronic) (N30.1), Trigonitis (N30.3), irradiation cystitis (N30.4), other cystitis (N30.8) and unspecified (N30.9).

To report this condition, pick the subcode that matches the documentation: N30.20 (without hematuria) and N30.21 (with hematuria).

Use an additional code to identify infectious agent (B95-B97).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under N30.2

Notes that apply from higher levels

Instructions written at a parent level also apply to N30.2.

› From N30 Cystitis
Excludes1
Use additional code
  • code to identify infectious agent (B95-B97)

Broader instructions also apply from N30-N39 Other diseases of the urinary system and Chapter 14: Diseases of the genitourinary system.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about N30.2

Is N30.2 billable?

No. N30.2 is a header code. Report one of its more specific subcodes instead.