N90.1
N90.1: Moderate vulvar dysplasia
Billable / specific codeICD-10-CM
N90.1 is a billable, specific ICD-10-CM code for moderate vulvar dysplasia. It is valid for submission on a claim.
Check N90.1 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Vulvar intraepithelial neoplasia [VIN], grade II
Excludes1 inherited from the categories above N90.1
A category’s note binds every code beneath it.
Written on N90: Other noninflammatory disorders of vulva and perineum
Other codes that can never be billed with N90.1
Their own Excludes1 notes name this code, so the conflict is not listed above.
- D07.1Carcinoma in situ of vulva
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
N90.1 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56346Billing and Coding: Removal of Benign and Malignant Skin Lesions
- A57044Billing and Coding: Removal of Benign Skin Lesions
- A57113Billing and Coding: Removal of Benign Skin Lesions
- A57482Billing and Coding: Removal of Benign Skin Lesions
Alphabetic index entries that lead here
- Dysplasia›vulva›moderate
- Neoplasia›intraepithelial›vulva›grade II
Code history
Unchanged in every release from FY2024 to FY2027.