Other congenital infectious and parasitic diseases (P37) ICD-10-CM
The P37 code range covers other congenital infectious and parasitic diseases with 9 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the P37 Range 9 codes · 8 billable
- P37 Other congenital infectious and parasitic diseasesNon-billable
- P37.0 Congenital tuberculosis
- P37.1 Congenital toxoplasmosis
- P37.2 Neonatal (disseminated) listeriosis
- P37.3 Congenital falciparum malaria
- P37.4 Other congenital malaria
- P37.5 Neonatal candidiasis
- P37.8 Other specified congenital infectious and parasitic diseases
- P37.9 Congenital infectious or parasitic disease, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the P37 range.
Neonatal Candidiasis
A fungal infection by any of the Candida species in a newborn infant up to 28 days old.
Neonatal Listeriosis
A bacterial infection by Listeria monocytogenes in a newborn infant up to 28 days old.
Toxoplasmosis, Congenital
Prenatal protozoal infection with TOXOPLASMA gondii which is associated with injury to the developing fetal nervous system. The severity of this condition is related to the stage of pregnancy during which the infection occurs; first trimester infections are associated with a greater degree of neurologic dysfunction. Clinical features include HYDROCEPHALUS; MICROCEPHALY; deafness; cerebral calcifications; SEIZURES; and psychomotor retardation. Signs of a systemic infection may also be present at birth, including fever, rash, and hepatosplenomegaly. (From Adams et al., Principles of Neurology, 6th ed, p735)
About the P37 Code Range
These conditions include infectious and parasitic diseases present at birth, as well as listeriosis and candidiasis in newborns.
P37 separates them by disease: congenital tuberculosis (P37.0), toxoplasmosis (P37.1), listeriosis (P37.2), malaria, and candidiasis (P37.5). Malaria separates falciparum (P37.3) from other congenital malaria (P37.4). The remaining subdivisions distinguish other specified diseases (P37.8) from an unspecified congenital infectious or parasitic disease (P37.9).
Questions About This Page
How many billable codes are in the P37 range?
Of the 9 codes in this range, 8 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the P37 range classify?
The range classifies other congenital infectious and parasitic diseases. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
