A32

Listeriosis

FY2027Chapter 1: Certain infectious and parasitic diseases/A30–A49 Other bacterial diseases

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

A32 is a non-billable ICD-10-CM code category for listeriosis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are A32.0 Cutaneous listeriosis, A32.1 Listerial meningitis and meningoencephalitis, A32.7 Listerial sepsis, A32.8 Other forms of listeriosis and 1 more. Its coding notes include a Use additional code instruction, 1 Excludes1 entry and 5 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • code to identify resistance to antimicrobial drugs (Z16.-)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • neonatal (disseminated) listeriosis (P37.2)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (5 notes)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • 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)

Includes

Further defines or gives examples of the content of the category.

This code
  • listerial foodborne infection
Also from chapter/block level (1 note)
Inherited from Chapter 1 Certain infectious and parasitic diseases
  • diseases generally recognized as communicable or transmissible

More specific codes under A32 5