2020 ICD-10-CM Diagnosis Code N90.4

Leukoplakia of vulva

    2016 2017 2018 2019 2020 Billable/Specific Code
  • N90.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM N90.4 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of N90.4 - other international versions of ICD-10 N90.4 may differ.
Applicable To
  • Dystrophy of vulva
  • Kraurosis of vulva
  • Lichen sclerosus of external female genital organs
The following code(s) above N90.4 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to N90.4:
  • N00-N99
    2020 ICD-10-CM Range N00-N99

    Diseases of the genitourinary system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the genitourinary system
  • N90
    ICD-10-CM Diagnosis Code N90

    Other noninflammatory disorders of vulva and perineum

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • 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)
    Other noninflammatory disorders of vulva and perineum
Approximate Synonyms
  • Dystrophy of vulva
  • Hypertrophic dystrophy of vulva
  • Squamous cell hyperplasia of vulva
Clinical Information
  • Atrophy and shriveling of the skin of the vulva that is characterized by the whitish lichen sclerosus appearance, inflammation, and pruritus.
ICD-10-CM N90.4 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 742 Uterine and adnexa procedures for non-malignancy with cc/mcc
  • 743 Uterine and adnexa procedures for non-malignancy without cc/mcc
  • 760 Menstrual and other female reproductive system disorders with cc/mcc
  • 761 Menstrual and other female reproductive system disorders without cc/mcc

Convert N90.4 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to N90.4:
  • Type 2 Excludes: L90.0
    ICD-10-CM Diagnosis Code L90.0

    Lichen sclerosus et atrophicus

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 2 Excludes
    • lichen sclerosus of external female genital organs (N90.4)
    • lichen sclerosus of external male genital organs (N48.0)

Diagnosis Index entries containing back-references to N90.4:
  • Breisky's disease N90.4
  • Disease, diseased - see also Syndrome
  • Dystrophy, dystrophia
    • vulva N90.4
  • Hyperkeratosis L85.9
    - see also Keratosis
    ICD-10-CM Diagnosis Code L85.9

    Epidermal thickening, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    • vulva N90.4
  • Kraurosis
    • vulva N90.4
  • Leukokraurosis vulva N90.4 (e)
  • Leukoplakia
    • vulva N90.4
  • Lichen L28.0
    ICD-10-CM Diagnosis Code L28.0

    Lichen simplex chronicus

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Circumscribed neurodermatitis
    • Lichen NOS
    • albus L90.0
      ICD-10-CM Diagnosis Code L90.0

      Lichen sclerosus et atrophicus

        2016 2017 2018 2019 2020 Billable/Specific Code
      Type 2 Excludes
      • lichen sclerosus of external female genital organs (N90.4)
      • lichen sclerosus of external male genital organs (N48.0)
      • vulva N90.4
    • atrophicus L90.0
      ICD-10-CM Diagnosis Code L90.0

      Lichen sclerosus et atrophicus

        2016 2017 2018 2019 2020 Billable/Specific Code
      Type 2 Excludes
      • lichen sclerosus of external female genital organs (N90.4)
      • lichen sclerosus of external male genital organs (N48.0)
      • vulva N90.4
    • sclerosus (et atrophicus) L90.0
      ICD-10-CM Diagnosis Code L90.0

      Lichen sclerosus et atrophicus

        2016 2017 2018 2019 2020 Billable/Specific Code
      Type 2 Excludes
      • lichen sclerosus of external female genital organs (N90.4)
      • lichen sclerosus of external male genital organs (N48.0)
      • vulva N90.4
  • Vulvitis (acute) (allergic) (atrophic) (hypertrophic) (intertriginous) (senile) N76.2
    ICD-10-CM Diagnosis Code N76.2

    Acute vulvitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Vulvitis NOS
    • leukoplakic N90.4

ICD-10-CM Codes Adjacent To N90.4
N89.4 Leukoplakia of vagina
N89.5 Stricture and atresia of vagina
N89.6 Tight hymenal ring
N89.7 Hematocolpos
N89.8 Other specified noninflammatory disorders of vagina
N89.9 Noninflammatory disorder of vagina, unspecified
N90 Other noninflammatory disorders of vulva and perineum
N90.0 Mild vulvar dysplasia
N90.1 Moderate vulvar dysplasia
N90.3 Dysplasia of vulva, unspecified
N90.4 Leukoplakia of vulva
N90.5 Atrophy of vulva
N90.6 Hypertrophy of vulva
N90.60 Unspecified hypertrophy of vulva
N90.61 Childhood asymmetric labium majus enlargement
N90.69 Other specified hypertrophy of vulva
N90.7 Vulvar cyst
N90.8 Other specified noninflammatory disorders of vulva and perineum
N90.81 Female genital mutilation status
N90.810 …… unspecified
N90.811 Female genital mutilation Type I status

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.