N42.31
Billable codeProstatic intraepithelial neoplasia
The ICD-10 code for prostatic intraepithelial neoplasia is N42.31.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- prostatic intraepithelial neoplasia III (PIN III) (D07.5)
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- PIN
- Prostatic intraepithelial neoplasia I (PIN I)
- Prostatic intraepithelial neoplasia II (PIN II)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- N42.30Unspecified dysplasia of prostate
- N42.32Atypical small acinar proliferation of prostate
- N42.39Other dysplasia of prostate
- N42.31Prostatic intraepithelial neoplasia
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 6023Approximate match
Associated MS-DRGs
N42.31 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.