Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
COVID-19 Case Classification Project 5 (COVID-19) Disease characterization
Including Alzheimer's Disease (AD)/AD-Related Dementias (ADRD) diagnosis and multiple chronic conditions (MCCs)
NIH CDEs
  • Project 5 (COVID-19)
    • Tier 1

# Datatype
Value List

# Permissible value Value meaning definition Concept Concept source
Lab-confirmed case The outcome of a laboratory test.:Having been established or verified. C36292:C25458 C36292:C25458 NCI Thesaurus
Lab-confirmed negative The outcome of a laboratory test.:Having been established or verified.:A finding of normality following an examination or investigation looking for the presence of a microorganism, disease, or condition. C36292:C25458:C38757 C36292:C25458:C38757 NCI Thesaurus
N/A or not reported Determination of a value is not relevant in the current context.:An article used to connect words, phrases, or clauses representing alternatives; used to connect alternative terms for the same thing; used in correlation; used to correct or rephrase what was previously said; otherwise.:Not provided or available. C48660:C37998:C43234(Primary) C48660:C37998:C43234(Primary) NCI Thesaurus
Point-of-care Confirmed Services designed to be administered at the patient's bedside or other patient location.:Having been established or verified. C154479:C25458 C154479:C25458 NCI Thesaurus
Probable Case Based on Clinical and Epidemiologic Evidence The designation of a case as probable based on clinical criteria and epidemiologic evidence, without confirmatory laboratory results. C178498 C178498 NCI Thesaurus
Probable Case Based on Laboratory Results and Clinical or Epidemiologic Evidence The designation of a case as probable based on presumptive laboratory evidence and either clinical criteria or epidemiologic evidence. C178499 C178499 NCI Thesaurus
Probable Case Based on Vital Records The designation of a case as probable based on vital records criteria, without confirmatory laboratory results. C178500 C178500 NCI Thesaurus
Unknown Not known, observed, recorded; or reported as unknown by the data contributor. C17998 C17998 NCI Thesaurus

# Name Origin Origin Concept type
Type NCI Thesaurus C25284 data element concept
COVID-19 Infection NCI Thesaurus C171133 data element concept
Classification NCI Thesaurus C25161 data element concept
Case NCI Thesaurus C49152 data element concept

# Definition Sources
A characterization of the diagnosis on the basis of how the diagnosis was confirmed. Project 5

# Designation Tags
COVID-19 Case Classification
Classification of the diagnosis: Preferred Question Text

# Identifier Origin Version
QnDNUPpXA7 NLM CDEs 12-02-2025-download