2017/18 ICD-10-CM Diagnosis Code N77.0

Ulceration of vulva in diseases classified elsewhere

ICD-10-CM Coding Rules
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • underlying disease, such as:
  • Behçet's disease (
    ICD-10-CM Diagnosis Code M35.2

    Behçet's disease

      2016 2017 2018 Billable/Specific Code
    M35.2
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as N77.0. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • ulceration of vulva in gonococcal infection (
    ICD-10-CM Diagnosis Code A54.02

    Gonococcal vulvovaginitis, unspecified

      2016 2017 2018 Billable/Specific Code Female Dx
    A54.02
    )
  • ulceration of vulva in herpesviral [herpes simplex] infection (
    ICD-10-CM Diagnosis Code A60.04

    Herpesviral vulvovaginitis

      2016 2017 2018 Billable/Specific Code Female Dx
    Applicable To
    • Herpesviral [herpes simplex] ulceration
    • Herpesviral [herpes simplex] vaginitis
    • Herpesviral [herpes simplex] vulvitis
    A60.04
    )
  • ulceration of vulva in syphilis (
    ICD-10-CM Diagnosis Code A51.0

    Primary genital syphilis

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Syphilitic chancre NOS
    A51.0
    )
  • ulceration of vulva in tuberculosis (
    ICD-10-CM Diagnosis Code A18.18

    Tuberculosis of other female genital organs

      2016 2017 2018 Billable/Specific Code Female Dx
    Applicable To
    • Tuberculous ulceration of vulva
    A18.18
    )
The following code(s) above N77.0 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 N77.0:
  • N00-N99
    2018 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
  • N70-N77
    2018 ICD-10-CM Range N70-N77

    Inflammatory diseases of female pelvic organs

    Type 1 Excludes
    • inflammatory diseases of female pelvic organs complicating:
    • abortion or ectopic or molar pregnancy (O00-O07, O08.0)
    • pregnancy, childbirth and the puerperium (O23.-, O75.3, O85, O86.-)
    Inflammatory diseases of female pelvic organs
ICD-10-CM N77.0 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert N77.0 to ICD-9-CM

Code History
ICD-10-CM Codes Adjacent To N77.0
N76.1 Subacute and chronic vaginitis
N76.2 Acute vulvitis
N76.3 Subacute and chronic vulvitis
N76.4 Abscess of vulva
N76.5 Ulceration of vagina
N76.6 Ulceration of vulva
N76.8 Other specified inflammation of vagina and vulva
N76.81 Mucositis (ulcerative) of vagina and vulva
N76.89 Other specified inflammation of vagina and vulva
N77 Vulvovaginal ulceration and inflammation in diseases classified elsewhere
N77.0 Ulceration of vulva in diseases classified elsewhere
N77.1 Vaginitis, vulvitis and vulvovaginitis in diseases classified elsewhere
N80 Endometriosis
N80.0 Endometriosis of uterus
N80.1 Endometriosis of ovary
N80.2 Endometriosis of fallopian tube
N80.3 Endometriosis of pelvic peritoneum
N80.4 Endometriosis of rectovaginal septum and vagina
N80.5 Endometriosis of intestine
N80.6 Endometriosis in cutaneous scar
N80.8 Other endometriosis

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