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ICD-10-CM 2027 diagnosis code

A32.1Listerial meningitis and meningoencephalitis

Not billable — use a more specific code

A32.1 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A32.1

A32.1 is the ICD-10-CM diagnosis code for Listerial meningitis and meningoencephalitis. It belongs to category A32 (listeriosis), block A30-A49 (other bacterial diseases) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within A32 (listeriosis), A32.1 is specifically for Listerial meningitis and meningoencephalitis. Related codes cover cutaneous listeriosis (A32.0), Listerial sepsis (A32.7), other forms of listeriosis (A32.8) and unspecified (A32.9).

To report this condition, pick the subcode that matches the documentation: A32.11 (meningitis) and A32.12 (meningoencephalitis).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A32.1

Notes that apply from higher levels

Instructions written at a parent level also apply to A32.1.

› From A32 Listeriosis
Includes
  • listerial foodborne infection
Excludes1
  • neonatal (disseminated) listeriosis (P37.2)

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about A32.1

Is A32.1 billable?

No. A32.1 is a header code. Report one of its more specific subcodes instead.