MCMCB Pro
N42

N42Other and unspecified disorders of prostate

Non-billable headerICD-10-CM

N42 is a non-billable header ICD-10-CM code for other and unspecified disorders of prostate. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with N42

These codes carry an Excludes1 note pointing at N42. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N42 alone.

  • D07.5Carcinoma in situ of prostate

Risk adjustment

N42 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead N42

5 child codes. Green means billable.

Questions about N42

Is N42 a billable ICD-10-CM code?
No. N42 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does N42 sit in the tabular list?
Diseases of the genitourinary system (N00-N99), in the block Diseases of male genital organs (N40-N53).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.