2026 ICD-10-CM Diagnosis Code P37.5Neonatal candidiasis

ICD-10-CM Codes›P00–P96›P35-P39›P37

ICD-10-CM P37.5
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

P37.5 is a billable ICD-10-CM diagnosis code for neonatal candidiasis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Fungal infections and Perinatal infections.

Code Identity

ICD-10-CM Code
P37.5
Billable Status
Yes — Valid for Submission
Code Describes
Neonatal candidiasis
Short Description
Neonatal candidiasis
Same as the full description in the CMS dataset.
Parent Code
P37
Other congenital infectious and parasitic diseases

Code Classification

ChapterP00–P96Certain conditions originating in the perinatal period
SectionP35-P39Infections specific to the perinatal period
CategoryP37Other congenital infectious and parasitic diseases
This CodeP37.5Neonatal candidiasis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute oral pseudomembraneous candidiasis
  • Candida albicans or Candida dubliniensis
  • Candida endophthalmitis
  • Candida inconspicua or Candida norvegensis
  • Candidiasis
  • Candidiasis of mouth co-occurrent with human immunodeficiency virus infection
  • Candidiasis of nose
  • Candidiasis of tongue
  • Congenital candidiasis
  • Disseminated candidiasis
  • Endogenous candidal endophthalmitis
  • Endogenous endophthalmitis
  • Endogenous fungal endophthalmitis
  • Fungal endophthalmitis
  • Fungal infection of liver
  • Gastrointestinal candidiasis
  • Granulomatous hepatitis
  • Granulomatous inflammation of liver caused by Candida
  • Infection by Candida albicans
  • Invasive candidiasis
  • Localized candidiasis
  • Neonatal candidiasis
  • Neonatal candidiasis of intestine
  • Neonatal candidiasis of lung
  • Neonatal candidiasis of perineum
  • Neonatal fungal infection of skin
  • Neonatal infection of skin caused by Candida
  • Neonatal mucocutaneous infection caused by Candida
  • Neonatal oral candidiasis
  • Neonatal systemic candidiasis
  • Pseudomembranous thrush

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Candidiasis, candidal
      • congenital
    • Candidiasis, candidal
      • neonatal
    • Infection, infected, infective(opportunistic)
      • congenital
        • Candida (albicans)
    • Moniliasis
      • neonatal
    • Newborn(infant) (liveborn) (singleton)
      • infection
        • candidal
    • Thrush
      • newborn

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF004
Fungal infections
Default principal diagnosis: inpatient No · outpatient No
CCSR PNL009
Perinatal infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Candidiasis

    infection with a fungus of the genus candida. it is usually a superficial infection of the moist areas of the body and is generally caused by candida albicans. (dorland, 27th ed)

  • Candidiasis, Chronic Mucocutaneous

    a clinical syndrome characterized by development, usually in infancy or childhood, of a chronic, often widespread candidiasis of skin, nails, and mucous membranes. it may be secondary to one of the immunodeficiency syndromes, inherited as an autosomal recessive trait, or associated with defects in cell-mediated immunity, endocrine disorders, dental stomatitis, or malignancy.

  • Candidiasis, Cutaneous

    candidiasis of the skin manifested as eczema-like lesions of the interdigital spaces, perleche, or chronic paronychia. (dorland, 27th ed)

  • Candidiasis, Invasive

    an important nosocomial fungal infection with species of the genus candida, most frequently candida albicans. invasive candidiasis occurs when candidiasis goes beyond a superficial infection and manifests as candidemia, deep tissue infection, or disseminated disease with deep organ involvement.

  • Candidiasis, Oral

    infection of the mucous membranes of the mouth by a fungus of the genus candida. (dorland, 27th ed)

  • Candidiasis, Vulvovaginal

    infection of the vulva and vagina with a fungus of the genus candida.

  • Candida

    a genus of yeast-like mitosporic saccharomycetales fungi characterized by producing yeast cells, mycelia, pseudomycelia, and blastophores. it is commonly part of the normal flora of the skin, mouth, intestinal tract, and vagina, but can cause a variety of infections, including candidiasis; onychomycosis; vulvovaginal candidiasis; and candidiasis, oral (thrush).

  • Neonatal Candidiasis

    a fungal infection by any of the candida species in a newborn infant up to 28 days old.

  • Congenital Candidiasis

    a fungal infection by any of the candida species that is present at birth.

  • Fungal Endophthalmitis

    inflammation of the lining of the ocular cavities, which results from a fungal infection.

  • Invasive Candidiasis

    a fungal infection by any of the candida species in a sterile body compartment.

  • Granulomatous Hepatitis

    hepatitis that is characterized by the presence of granulomas.

  • Granulomatous Hepatitis, not Elsewhere Classified|Granulomatous hepatitis, not elsewhere classified

    evidence of granulomatous hepatitis, not elsewhere classified.

  • Disseminated Candidiasis

    a fungal infection by any of the candida species in two or more non-contiguous sterile body compartments.

Patient EducationClinical

Uncommon Infant and Newborn Problems

It can be scary when your baby is sick, especially when it is not an everyday problem like a cold or a fever. You may not know whether the problem is serious or how to treat it. If you have concerns about your baby's health, call your health care provider right away.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert P37.5 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
771.7 Neonatal candida infect
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About P37.5Overview

Is P37.5 (Other congenital infectious and parasitic diseases) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report neonatal candidiasis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of P37.5?

Under the General Equivalence Mappings, neonatal candidiasis converts to ICD-9-CM 771.7 (neonatal candida infect). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.