A32 — Listeriosis
Is A32 billable?
No — A32 is a non-billable header code. A32 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath A32.
A32 at a glance
| Code | A32 |
|---|---|
| Description | Listeriosis |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with A32 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neonatal (disseminated) listeriosis (P37.2)
Includes
Conditions classified to A32.
- listerial foodborne infection
Use additional code — inherited from Chapter 1
Report an additional code alongside A32 to fully describe the condition. A32 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 A32, but a patient may have both at the same time. When documentation supports it, A32 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)
What codes fall under A32? (5)
How long has A32 existed?
A32 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 A32?
ICD-10-CM declares these codes mutually exclusive with A32 — exactly one of each pair can be correct for a given encounter.