A69.1 — Other Vincent's infections
Is A69.1 billable?
Yes — A69.1 is billable for FY2027. A69.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. A69.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
A69.1 at a glance
| Code | A69.1 |
|---|---|
| Description | Other Vincent's infections |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does A69.1 group to?
A69.1 sits in MDC Pre and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCCsurgical
- 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CCsurgical
- 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCCsurgical
As a secondary diagnosis, A69.1 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is A69.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to A69.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Fusospirillosis (mouth) (tongue) (tonsil)
- Plautdisease (-Vincent)
- Vincent's infection (angina) (gingivitis)
- Angina › pseudomembranous (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor)
- Angina › Vincent's (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor)
- Gingivitis › necrotizing ulcerative
- Gingivitis › Vincent's
- Gingivostomatitis › necrotizing ulcerative
- Infection, infected, infective › Vincent's (opportunistic)
- Laryngitis › Vincent's (acute) (edematous) (fibrinous) (infective) (infiltrative) (malignant) (membranous) (phlegmonous) (pneumococcal) (pseudomembranous) (septic) (subglottic) (suppurative) (ulcerative)
- Laryngotracheitis › Vincent's (acute) (Infectional) (infective) (viral)
- Pharyngitis › fusospirochetal (acute) (catarrhal)(gangrenous) (infective) (malignant) (membranous) (phlegmonous) (pseudomembranous) (simple) (subacute) (suppurative) (ulcerative)
Inclusion terms
Alternative wording in documentation that is classified to A69.1.
- Fusospirochetal pharyngitis
- Necrotizing ulcerative (acute) gingivitis
- Necrotizing ulcerative (acute) gingivostomatitis
- Spirochetal stomatitis
- Trench mouth
- Vincent's angina
- Vincent's gingivitis
Use additional code — inherited from Chapter 1
Report an additional code alongside A69.1 to fully describe the condition. A69.1 is sequenced first.
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 1
The conditions below are not part of A69.1, but a patient may have both at the same time. When documentation supports it, A69.1 and the excluded code may both be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Excludes2 — not included here — inherited from A65-A69
The conditions below are not part of A69.1, but a patient may have both at the same time. When documentation supports it, A69.1 and the excluded code may both be reported.
How long has A69.1 existed?
A69.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with A69.1?
ICD-10-CM declares these codes mutually exclusive with A69.1 — exactly one of each pair can be correct for a given encounter.