ICD-10-CM 2027 diagnosis code
A32.0Cutaneous listeriosis
A32.0 is a valid, billable ICD-10-CM code for cutaneous listeriosis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
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 A32.0
A32.0 is the ICD-10-CM diagnosis code for cutaneous listeriosis. It belongs to category A32 (listeriosis), block A30-A49 (other bacterial diseases) and chapter 1 (certain infectious and parasitic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within A32 (listeriosis), A32.0 is specifically for cutaneous listeriosis. Related codes cover Listerial meningitis and meningoencephalitis (A32.1), Listerial sepsis (A32.7), other forms of listeriosis (A32.8) and unspecified (A32.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 027.0 (listeriosis).
Notes that apply from higher levels
Instructions written at a parent level also apply to A32.0.
› From A32 Listeriosis
- listerial foodborne infection
- neonatal (disseminated) listeriosis (P37.2)
Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to A32.0.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 18 · Infectious and Parasitic Diseases, Systemic or Unspecified Sites
ICD-9-CM equivalent
Converter →- 027.0Listeriosisapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about A32.0
Is A32.0 billable?
- Yes. A32.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A32.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A32.0 as a principal diagnosis.
Is A32.0 a CC or MCC?
- A32.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does A32.0 group to?
- A32.0 is used in the MS-DRG v44.0 logic for MS-DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC), MS-DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC) and MS-DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for A32.0?
- The CMS General Equivalence Mappings map A32.0 to ICD-9-CM 027.0.