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ICD-10 Guide
ICD-10 CodesChapter 14: Diseases of the genitourinary systemN77

N77

Billable

Vulvovaginal ulceration and inflammation in diseases classified elsewhere

Chapter 14:Diseases of the genitourinary system

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N77 is a billable code used to indicate a diagnosis of vulvovaginal ulceration and inflammation in diseases classified elsewhere.

Key Diagnostic Point:

N77 refers to vulvovaginal ulceration and inflammation that occurs as a result of underlying diseases classified in other categories. This code encompasses a variety of conditions affecting the vulva and vagina, including Bartholin's gland disorders, vulvovaginitis, and other inflammatory conditions of the female genital tract. Bartholin's gland disorders can lead to cysts or abscesses, causing localized pain and inflammation. Vulvovaginitis, which may be caused by infections (bacterial, fungal, or viral), irritants, or allergens, presents with symptoms such as itching, burning, and discharge. Inflammatory conditions may arise from systemic diseases, autoimmune disorders, or as a reaction to medications. Accurate coding requires a thorough understanding of the underlying conditions and their manifestations, as well as the clinical context in which these symptoms occur.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of multiple underlying conditions.
  • Differentiation between infectious and non-infectious causes.
  • Documentation must specify the underlying disease causing the symptoms.
  • Potential overlap with other codes related to vulvovaginal disorders.

Audit Risk Factors

  • Inadequate documentation of the underlying condition.
  • Failure to specify the type of inflammation or ulceration.
  • Misclassification of the condition as primary rather than secondary.
  • Inconsistent coding across different encounters.

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed patient history, including symptoms, duration, and any previous treatments.

Common Clinical Scenarios

Patients presenting with vulvar pain, discharge, or swelling.

Billing Considerations

Ensure that the underlying condition is clearly documented to support the use of N77.

Dermatology

Documentation Requirements

Comprehensive skin examination notes, including descriptions of lesions and any associated symptoms.

Common Clinical Scenarios

Diagnosis of inflammatory skin conditions affecting the vulva.

Billing Considerations

Document any differential diagnoses considered during the evaluation.

Coding Guidelines

Inclusion Criteria

Use N77 When
  • Follow official ICD
  • 10 coding guidelines, ensuring that the underlying condition is documented
  • N77 should only be used when the vulvovaginal ulceration or inflammation is secondary to another disease

Exclusion Criteria

Do NOT use N77 When
  • Review inclusion and exclusion criteria to ensure accurate coding

Related CPT Codes

58150CPT Code

Total abdominal hysterectomy

Clinical Scenario

Used in cases where severe underlying conditions necessitate surgical intervention.

Documentation Requirements

Operative report detailing the procedure and indication.

Specialty Considerations

Obstetricians should document the reason for surgery related to N77.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of vulvovaginal conditions, improving the ability to capture the complexity of cases like those represented by N77. This specificity aids in better understanding patient populations and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of vulvovaginal conditions, improving the ability to capture the complexity of cases like those represented by N77. This specificity aids in better understanding patient populations and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of vulvovaginal conditions, improving the ability to capture the complexity of cases like those represented by N77. This specificity aids in better understanding patient populations and treatment outcomes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use code N77?

Use code N77 when vulvovaginal ulceration and inflammation are secondary to diseases classified elsewhere, ensuring that the underlying condition is well-documented.