Is N87.1 a billable ICD-10-CM code?

Yes. N87.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does N87.1 sit in the tabular list?

Diseases of the genitourinary system (N00-N99), in the block Noninflammatory disorders of female genital tract (N80-N98).

What cannot be coded together with N87.1?

N87.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N87.1 (N87) and apply to it just the same.

N87.1

N87.1 — Moderate cervical dysplasia

Billable / specific codeICD-10-CM

N87.1 is a billable, specific ICD-10-CM code for moderate cervical dysplasia. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Cervical intraepithelial neoplasia II [CIN II]

Excludes1 inherited from the categories above N87.1

These are not written on N87.1, but they bind it: a note on a category applies to every code beneath it. Billing N87.1 with anything listed here is a denial.

Written on N87 — Dysplasia of cervix uteri

abnormal results from cervical cytologic examination without histologic confirmation (R87.61-)
carcinoma in situ of cervix uteri (D06.-)
cervical intraepithelial neoplasia III [CIN III] (D06.-)
HGSIL of cervix (R87.613)
severe dysplasia of cervix uteri (D06.-)

Other codes that can never be billed with N87.1

These codes carry an Excludes1 note pointing at N87.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N87.1 alone.

R87.61Abnormal cytological findings in specimens from cervix uteri
R87.7Abnormal histological findings in specimens from female genital organs
D06Carcinoma in situ of cervix uteri

Risk adjustment

N87.1 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.

How N87.1 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N87.1.

Dysplasia›cervix›moderate
Neoplasia›intraepithelial›cervix›grade II

Code history

N87.1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share N87. If N87.1 is not quite right, the correct code is usually one of these.

Questions about N87.1

Is N87.1 a billable ICD-10-CM code?: Yes. N87.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N87.1 sit in the tabular list?: Diseases of the genitourinary system (N00-N99), in the block Noninflammatory disorders of female genital tract (N80-N98).
What cannot be coded together with N87.1?: N87.1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above N87.1 (N87) and apply to it just the same.