ICD-10-CM 2027
ICD-10 code for congenital disseminated listeriosis
From the official ICD-10-CM alphabetic index entry “Listeriosis, listerellosis › congenital (disseminated)”. Page updated September 29, 2026.
About coding congenital disseminated listeriosis
The ICD-10-CM code for congenital disseminated listeriosis is P37.2 (Neonatal (disseminated) listeriosis).
Within P37 (other congenital infectious and parasitic diseases), P37.2 is specifically for neonatal (disseminated) listeriosis. Related codes cover congenital tuberculosis (P37.0), congenital toxoplasmosis (P37.1), congenital falciparum malaria (P37.3), other congenital malaria (P37.4), neonatal candidiasis (P37.5), other specified congenital infectious and parasitic diseases (P37.8) and congenital infectious or parasitic disease, unspecified (P37.9).
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about congenital disseminated listeriosis ICD-10 codes
What is the ICD-10 code for congenital disseminated listeriosis?
- P37.2 — Neonatal (disseminated) listeriosis.
Is P37.2 billable?
- Yes. P37.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can P37.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict P37.2 as a principal diagnosis.
Is P37.2 a CC or MCC?
- P37.2 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.