D07.1 Carcinoma in situ of vulva

The ICD-10-CM code for Carcinoma in situ of vulva is D07.1 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

2: Neoplasms (C00-D49)

Section

D00-D09: In situ neoplasms (D00-D09)

Category D07

13 codes (10 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to D07.1:

• Dysplasia › vulva › severe NEC
• Neoplasia › intraepithelial (histologically confirmed) › vulva (histologically confirmed) (VIN) › grade III (severe dysplasia)

Inclusion Terms

• Severe dysplasia of vulva
• Vulvar intraepithelial neoplasia III [VIN III]

U.S. Hospital Utilization

• An estimated 605 U.S. inpatient stays in 2023 included D07.1 among the documented diagnoses.
• 300 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)