ICD10BillableValid for clinical use
ICD-10 Code B37.9: Candidiasis, unspecified
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).
When is it used?
- May be used when a clinician documents candidiasis, unspecified in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
1Certain infectious and parasitic diseases (A00-B99)
block
B35-B49Mycoses
category
B37Candidiasis
currentB37
Official coding notes
Inclusion terms
- Thrush NOS
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Infectious Disease SpecialistGeneral Physician
Related codes
B37.0Candidal stomatitiscodeB37.1Pulmonary candidiasiscodeB37.2Candidiasis of skin and nailcodeB37.3Candidiasis of vulva and vaginacategoryB37.4Candidiasis of other urogenital sitescategoryB37.5Candidal meningitiscodeB37.6Candidal endocarditiscodeB37.7Candidal sepsiscodeB37.8Candidiasis of other sitescategory
Sibling codes
B37.0Candidal stomatitisbillableB37.1Pulmonary candidiasisbillableB37.2Candidiasis of skin and nailbillableB37.3Candidiasis of vulva and vaginaB37.4Candidiasis of other urogenital sitesB37.5Candidal meningitisbillableB37.6Candidal endocarditisbillableB37.7Candidal sepsisbillableB37.8Candidiasis of other sites
Mapped diagnoses and classifications
SNOMED_CT 240722000high
Acute disseminated candidiasis
Source: SNOMED International ICD-10 map
SNOMED_CT 95894002high
Atrophic thrush
Source: SNOMED International ICD-10 map
SNOMED_CT 78048006high
Candidiasis
Source: SNOMED International ICD-10 map
SNOMED_CT 240717000high
Familial chronic mucocutaneous candidiasis - late onset type
Source: SNOMED International ICD-10 map
SNOMED_CT 865929003high
Infection caused by Candidozyma auris
Source: SNOMED International ICD-10 map
SNOMED_CT 1363033006high
Invasive candidiasis
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
B37.9
Common synonyms
Candidiasis, unspecifiedCandidiasis
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.