A69.1 vs K12.1
A69.1 (Other Vincent's infections) compared with K12.1 (Other forms of stomatitis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K12.1 carries an Excludes1 note covering A69.1: “acute necrotizing ulcerative stomatitis (A69.1)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. K12.1 carries an Excludes1 note covering A69.1: “Vincent's stomatitis (A69.1)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| A69.1Other Vincent's infections | K12.1Other forms of stomatitis | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Other Vincent's infections is a billable ICD-10-CM diagnosis code (A69.1). | Other forms of stomatitis is a billable ICD-10-CM diagnosis code (K12.1). |
| Includes | Fusospirochetal pharyngitis Necrotizing ulcerative (acute) gingivitis Necrotizing ulcerative (acute) gingivostomatitis Spirochetal stomatitis | Stomatitis NOS Denture stomatitis Ulcerative stomatitis Vesicular stomatitis |
| Use additional code | — | code to identify: alcohol abuse and dependence (F10.-) exposure to environmental tobacco smoke (Z77.22) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources