DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

N33 diagnosis code · Billable category · FY2027

N33 Bladder disorders in diseases classified elsewhere

  • Billable
  • Not CC/MCC
  • POA reported

N33 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

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. N33 Bladder disorders in diseases classified elsewhere
CC / MCC
Neither
MS-DRG
698-700
HCC V28
–
POA
Reported
Code Editor
Manifestation
Index entries
5

Instructions

At N33

Excludes1

  • bladder disorder in syphilis (A52.76) A52.76
  • bladder disorder in tuberculosis (A18.12) A18.12
  • candidal cystitis (B37.41) B37.41
  • chlamydial cystitis (A56.01) A56.01
  • cystitis in gonorrhea (A54.01) A54.01
  • cystitis in neurogenic bladder (N31.-) N31
  • diphtheritic cystitis (A36.85) A36.85
  • syphilitic cystitis (A52.76) A52.76
  • trichomonal cystitis (A59.03) A59.03

Code first

  • underlying disease, such as:
  • schistosomiasis (B65.0-B65.9) B65.0 B65.9

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

  • Cystitis (exudative) (hemorrhagic) (septic) (suppurative)bilharzial → B65.9 [N33]
  • Disorder (of)bladderin schistosomiasis → B65.0 [N33]
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativebladder (solitary) (sphincter) NECbilharzial → B65.9 [N33]
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativebladder (solitary) (sphincter) NECin schistosomiasis (bilharzial) → B65.9 [N33]
  • Disease, diseasedbladderin (due to)schistosomiasis (bilharziasis) → B65.0 [N33]

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

Medicare grouping and edits

CMS files for N33
CC / MCCNeither
Appendix BMDC 11 Diseases and Disorders of the Kidney and Urinary Tract, MS-DRG 698-700 (Other Kidney and Urinary Tract Diagnoses with MCC…)
Code EditorManifestation code: not allowed as principal diagnosis
POAReported
HCC V28–

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy