Is N90.5 a billable ICD-10-CM code?

Yes. N90.5 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does N90.5 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 N90.5?

N90.5 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 N90.5 (N90) and apply to it just the same.

N90.5

N90.5 — Atrophy of vulva

Billable / specific codeICD-10-CM

N90.5 is a billable, specific ICD-10-CM code for atrophy of vulva. It is valid for submission on a claim.

Inclusion terms

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

Stenosis of vulva

Excludes1 inherited from the categories above N90.5

These are not written on N90.5, but they bind it: a note on a category applies to every code beneath it. Billing N90.5 with anything listed here is a denial.

Written on N90 — Other noninflammatory disorders of vulva and perineum

anogenital (venereal) warts (A63.0)
carcinoma in situ of vulva (D07.1)
condyloma acuminatum (A63.0)
current obstetric trauma (O70.-, O71.7-O71.8)
inflammation of vulva (N76.-)
severe dysplasia of vulva (D07.1)
vulvar intraepithelial neoplasm III [VIN III] (D07.1)

Risk adjustment

N90.5 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 N90.5 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 N90.5.

Atrophy, atrophic›vulva(senile)
Closure›vulva
Occlusion, occluded›vulva
Stenosis, stenotic›vulva
Stricture›vulva(acquired)
Atresia, atretic›vulva›acquired

Code history

N90.5 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 N90. If N90.5 is not quite right, the correct code is usually one of these.

Questions about N90.5

Is N90.5 a billable ICD-10-CM code?: Yes. N90.5 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does N90.5 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 N90.5?: N90.5 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 N90.5 (N90) and apply to it just the same.