2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

P37.5 is a billable ICD-10-CM diagnosis code for neonatal candidiasis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 794. 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
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
  • Granulomatous hepatitis
  • Granulomatous inflammation of liver caused by Candida
  • Infection by Candida albicans
  • Invasive candidiasis
  • Localized candidiasis
  • Mucosal 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

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to P37.5: its own notes plus those printed at P37, block P35-P39, and Chapter 16. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From P37 Other congenital infectious and parasitic diseases applies to 8 codes
  • congenital syphilis (A50.-)
  • infectious neonatal diarrhea (A00-A09)
  • necrotizing enterocolitis in newborn (P77.-)
  • noninfectious neonatal diarrhea (P78.3)
  • ophthalmia neonatorum due to gonococcus (A54.31)
  • tetanus neonatorum (A33)
From Block P35-P39 Infections specific to the perinatal period applies to 34 codes
  • asymptomatic human immunodeficiency virus [HIV] infection status (Z21)
  • congenital gonococcal infection (A54.-)
  • congenital pneumonia (P23.-)
  • congenital syphilis (A50.-)
  • human immunodeficiency virus [HIV] disease (B20)
  • infant botulism (A48.51)
  • infectious diseases not specific to the perinatal period (A00-B99, J09, J10.-)
  • intestinal infectious disease (A00-A09)
  • laboratory evidence of human immunodeficiency virus [HIV] (R75)
  • tetanus neonatorum (A33)
From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • tetanus neonatorum (A33)

Notes

General instructions on how these codes are used.

From Chapter 16 (P00-P96) Certain conditions originating in the perinatal period applies to 463 codes
  • Codes from this chapter are for use on newborn records only, never on maternal records

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name P37.5, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming P37.5: they are not reported together with it, unless the two conditions are unrelated.

  • B37 Candidiasis
    neonatal candidiasis (P37.5)

Excludes2 2

These codes carry an Excludes2 note naming P37.5: its condition is not part of those codes, and both may be reported when the patient has both.

  • Chapter 1 (A00-B99) Certain infectious and parasitic diseases
    infectious and parasitic diseases specific to the perinatal period (P35-P39) names P35-P39, which includes this code
  • P00.2 Newborn affected by maternal infectious and parasitic diseases
    infections specific to the perinatal period (P35-P39) names P35-P39, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

  • Neonatal Candidiasis

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

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About P37.5Overview

What is the ICD-10 code for neonatal candidiasis?

The ICD-10-CM code for neonatal candidiasis is P37.5 (sometimes written as P375). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

What MS-DRG does P37.5 group to?

When neonatal candidiasis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 794 (neonate with Other Significant Problems), which carries a relative weight of 1.4934. Higher weights mean higher Medicare reimbursement.

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.