ICD-10-CM Codes
N00-N99
N80-N98
N90-
2023 ICD-10-CM Diagnosis Code N90.1

2023 ICD-10-CM Diagnosis Code N90.1

Moderate vulvar dysplasia

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

Female Dx

N90.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM N90.1 became effective on October 1, 2022.
This is the American ICD-10-CM version of N90.1 - other international versions of ICD-10 N90.1 may differ.

ICD-10-CM Coding Rules

N90.1 is applicable to female patients.

Applicable To

Vulvar intraepithelial neoplasia [VIN], grade II

The following code(s) above N90.1 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 N90.1:

N00-N99
2023 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
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

Vulval intraepithelial neoplasia grade 2
Vulvar intraepithelial neoplasia 2

ICD-10-CM N90.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

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 N90.1 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
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to N90.1:

Type 1 Excludes: D07.1
, D07.1

ICD-10-CM Diagnosis Code D07.1
Carcinoma in situ of vulva
Applicable To
- Severe dysplasia of vulva
- Vulvar intraepithelial neoplasia III [VIN III]
Type 1 Excludes
- moderate dysplasia of vulva (N90.1)
- vulvar intraepithelial neoplasia II [VIN II] (N90.1)
ICD-10-CM Diagnosis Code D07.1
Carcinoma in situ of vulva
Applicable To
- Severe dysplasia of vulva
- Vulvar intraepithelial neoplasia III [VIN III]
Type 1 Excludes
- moderate dysplasia of vulva (N90.1)
- vulvar intraepithelial neoplasia II [VIN II] (N90.1)

Diagnosis Index entries containing back-references to N90.1:

Dysplasia - see also Anomaly
- vulva N90.3
  ICD-10-CM Diagnosis Code N90.3
  Dysplasia of vulva, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Female Dx
  - moderate N90.1
Neoplasia
- intraepithelial (histologically confirmed)
  - vulva (histologically confirmed) (VIN) N90.3
    ICD-10-CM Diagnosis Code N90.3
    Dysplasia of vulva, unspecified
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code Female Dx
    - grade II N90.1

ICD-10-CM Codes Adjacent To N90.1

N89.1 Moderate vaginal dysplasia

N89.3 Dysplasia of vagina, unspecified

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

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

2023 ICD-10-CM Diagnosis Code N90.1

Moderate vulvar dysplasia

Diseases of the genitourinary system

Other noninflammatory disorders of vulva and perineum

Carcinoma in situ of vulva

Carcinoma in situ of vulva

Dysplasia of vulva, unspecified

Dysplasia of vulva, unspecified