ICD10BillableValid for clinical use
ICD-10 Code N77.0: Ulceration of vulva in diseases classified elsewhere
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).
When is it used?
- May be used when a clinician documents ulceration of vulva in diseases classified elsewhere in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
14Diseases of the genitourinary system (N00-N99)
block
N70-N77Inflammatory diseases of female pelvic organs
category
N77Vulvovaginal ulceration and inflammation in diseases classified elsewhere
currentN77
Official coding notes
Applicable to
- underlying disease, such as:
- Behçet's disease (M35.2)
Excludes1 (do not code together)
- ulceration of vulva in gonococcal infection (A54.02)
- ulceration of vulva in herpesviral [herpes simplex] infection (A60.04)
- ulceration of vulva in syphilis (A51.0)
- ulceration of vulva in tuberculosis (A18.18)
Code first
- underlying disease, such as:
- Behçet's disease (M35.2)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
UrologistGynecologist
Mapped diagnoses and classifications
SNOMED_CT 59819007high
Herpetic ulceration of vulva
Source: SNOMED International ICD-10 map
SNOMED_CT 1090421000119108high
Recurrent ulcer of vulva caused by human herpes simplex virus
Source: SNOMED International ICD-10 map
SNOMED_CT 717697005high
Ulcer of vulva due to tuberculosis
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
N77.0
Common synonyms
Ulceration of vulva in diseases classified elsewhere
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.