A69.1 Other Vincent's infections

The ICD-10-CM code for Other Vincent's infections is A69.1 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

1: Certain infectious and parasitic diseases (A00-B99)

Section

A65-A69: Other spirochetal diseases (A65-A69)

Category A69

11 codes (9 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to A69.1:

• Plaut (-Vincent) disease
• Vincent's infection (angina) (gingivitis)
• Fusospirillosis (mouth) (tongue) (tonsil)
• Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) › Vincent's
• Gingivitis › necrotizing ulcerative (acute)
• Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) › pseudomembranous
• Gingivostomatitis › necrotizing ulcerative (acute)
• Gingivitis › Vincent's

Inclusion Terms

• Fusospirochetal pharyngitis
• Necrotizing ulcerative (acute) gingivitis
• Necrotizing ulcerative (acute) gingivostomatitis
• Spirochetal stomatitis
• Trench mouth
• Vincent's angina
• Vincent's gingivitis

U.S. Hospital Utilization

• An estimated 155 U.S. inpatient stays in 2023 included A69.1 among the documented diagnoses.

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

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

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)