DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

N51 diagnosis code · Billable category · FY2027

N51 Disorders of male genital organs in diseases classified elsewhere

  • Billable
  • Not CC/MCC
  • POA reported

N51 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. N40-N53 Diseases of male genital organs (N40-N53)
  3. N51 Disorders of male genital organs in diseases classified elsewhere
CC / MCC
Neither
MS-DRG
729-730
HCC V28
–
POA
Reported
Code Editor
Manifestation
Index entries
5

Instructions

At N51

Excludes1

  • amebic balanitis (A06.8) A06.8
  • candidal balanitis (B37.42) B37.42
  • gonococcal balanitis (A54.23) A54.23
  • gonococcal prostatitis (A54.22) A54.22
  • herpesviral [herpes simplex] balanitis (A60.01) A60.01
  • trichomonal prostatitis (A59.02) A59.02
  • tuberculous prostatitis (A18.14) A18.14

Code first

  • underlying disease, such as:
  • filariasis (B74.0-B74.9) B74.0 B74.9

Notes that also apply

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

Index entries

  • Mumu → B74.9 [N51]
  • Chylocele (nonfilarial)filarial → B74.9 [N51]
  • Epididymitis (acute) (nonvenereal) (recurrent) (residual)filarial → B74.9 [N51]
  • Orchitis (gangrenous) (nonspecific) (septic) (suppurative)filarial → B74.9 [N51]
  • Chylocele (nonfilarial)tunica vaginalisfilarial → B74.9 [N51]

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

Medicare grouping and edits

CMS files for N51
CC / MCCNeither
Appendix BMDC 12 Diseases and Disorders of the Male Reproductive System, MS-DRG 729-730 (Other Male Reproductive System Diagnoses with CC/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