DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

N30 Cystitis

  • Header · not billable

N30 is not billable. The category heads 14 billable codes in FY2027, grouped under 7 subdivisions.

Index → code

  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)acutewith hematuria → N30.01
  • Pyocystitis → N30.80
  • Pericystitis → N30.90

Where it sits

  1. Chapter 14 Diseases of the genitourinary system (N00-N99)
  2. N30-N39 Other diseases of the urinary system (N30-N39)
  3. N30 Cystitis
Billable codes
14
Subdivisions
7
CC / MCC codes
4 / 0
HCC V28 codes
0
New FY2027
0
Index entries
26

Codes in N30

  1. N30.0
    Acute cystitis
    Header
    Excludes1 2

    Excludes1

    • irradiation cystitis (N30.4-) N30.4
    • trigonitis (N30.3-) N30.3
  2. N30.00
    Acute cystitis without hematuria
    BillableCC
  3. N30.01
    Acute cystitis with hematuria
    BillableCC
  4. N30.1
    Interstitial cystitis (chronic)
    Header
  5. N30.10
    Interstitial cystitis (chronic) without hematuria
    Billable
  6. N30.11
    Interstitial cystitis (chronic) with hematuria
    Billable
  7. N30.2
    Other chronic cystitis
    Header
  8. N30.20
    Other chronic cystitis without hematuria
    Billable
  9. N30.21
    Other chronic cystitis with hematuria
    Billable
  10. N30.3
    Trigonitis
    Header
    Inclusion terms 1

    Inclusion terms

    • Urethrotrigonitis
  11. N30.30
    Trigonitis without hematuria
    Billable
  12. N30.31
    Trigonitis with hematuria
    Billable
  13. N30.4
    Irradiation cystitis
    Header
  14. N30.40
    Irradiation cystitis without hematuria
    BillableCC
  15. N30.41
    Irradiation cystitis with hematuria
    BillableCC
  16. N30.8
    Other cystitis
    Header
    Inclusion terms 1

    Inclusion terms

    • Abscess of bladder
  17. N30.80
    Other cystitis without hematuria
    Billable
  18. N30.81
    Other cystitis with hematuria
    Billable
  19. N30.9
    Cystitis, unspecified
    Header
  20. N30.90
    Cystitis, unspecified without hematuria
    Billable
  21. N30.91
    Cystitis, unspecified with hematuria
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At N30

Excludes1

  • prostatocystitis (N41.3) N41.3

Use additional code

  • code to identify infectious agent (B95-B97) B95 B97

Notes that also apply

Block N30-N39 instructions (Excludes2 3): printed on the block page.

Chapter 14 instructions (Excludes2 8): printed on the chapter 14 page.

Index entries

  • Trigonitis (bladder) (chronic) (pseudomembranous) → N30.30
  • Pyocystitis → N30.80
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative) → N30.90
  • Pericystitis → N30.90
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)acute → N30.00
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronic → N30.20
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)of trigone → N30.30
  • Trigonitis (bladder) (chronic) (pseudomembranous)with hematuria → N30.31
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)irradiation → N30.40
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)specified type NEC → N30.80
  • Pyocystitiswith hematuria → N30.81
  • Pericystitiswith hematuria → N30.91
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)acutewith hematuria → N30.01
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicinterstitial → N30.10
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicspecified NEC → N30.20
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicwith hematuria → N30.21
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)acuteof trigone → N30.30
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicof trigone → N30.30
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)of trigonewith hematuria → N30.31
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)irradiationwith hematuria → N30.41
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)specified type NECwith hematuria → N30.81
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)withhematuria → N30.91
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicinterstitialwith hematuria → N30.11
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicspecified NECwith hematuria → N30.21
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)acuteof trigonewith hematuria → N30.31
  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)chronicof trigonewith hematuria → N30.31

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy