NPI Atlas

N42.3 – Dysplasia of prostate

ICD-10-CM 2027 diagnosis code · Diseases of male genital organs

Non-billable header

ICD-10-CM code N42.3

Code: N42.3 (claims format: N423)
Description: Dysplasia of prostate
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N40-N53 Diseases of male genital organs
Parent codes: N42

Billable codes under N42.3

N42.3 is a header code and cannot be used on claims. Choose the most specific code:

N42.30 – Unspecified dysplasia of prostateBillable
N42.31 – Prostatic intraepithelial neoplasiaBillable
N42.32 – Atypical small acinar proliferation of prostateBillable
N42.39 – Other dysplasia of prostateBillable

Related codes in N42

N42.0 – Calculus of prostateBillable
N42.1 – Congestion and hemorrhage of prostateBillable
N42.8 – Other specified disorders of prostateHeader
N42.9 – Disorder of prostate, unspecifiedBillable

Frequently asked questions

What is ICD-10 code N42.3?

N42.3 is the ICD-10-CM code for dysplasia of prostate, in the block N40-N53 (Diseases of male genital organs).

Is N42.3 a billable code?

No. N42.3 is a header code with more specific child codes; report one of the billable codes listed above.

What category does N42.3 belong to?

It belongs to category N42 – Other and unspecified disorders of prostate.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.