2022 ICD-10-CM Code N90.1

Moderate vulvar dysplasia

Version 2021

Valid for Submission

ICD-10:N90.1
Short Description:Moderate vulvar dysplasia
Long Description:Moderate vulvar dysplasia

Code Classification

  • Diseases of the genitourinary system (N00–N99)
    • Noninflammatory disorders of female genital tract (N80-N98)
      • Other noninflammatory disorders of vulva and perineum (N90)

N90.1 is a billable diagnosis code used to specify a medical diagnosis of moderate vulvar dysplasia. The code N90.1 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code N90.1 might also be used to specify conditions or terms like benign neoplasm of vulva, vulval intraepithelial neoplasia or vulval intraepithelial neoplasia grade 2.

The code N90.1 is applicable to female patients only. It is clinically and virtually impossible to use this code on a non-female patient.

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code N90.1:


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code N90.1 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert N90.1 to ICD-9 Code

Information for Patients


Vulvar Disorders

The vulva is the external part of a woman's genitals. Some problems you can have with the vulvar area include

Symptoms may include redness, itching, pain, or cracks in the skin. Treatment depends on the cause.


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)