Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
How often do you generally have attacks [PhenX] LOINC Disease characterization
Including Alzheimer's Disease (AD)/AD-Related Dementias (ADRD) diagnosis and multiple chronic conditions (MCCs)
NIH CDEs
  • PhenX
    • Miscellaneous

# Datatype
Value List

# Permissible value Value meaning name Value meaning code Code system name
Often (more than one attack a month) Often (more than one attack a month) LA15523-6 LOINC
Rarely (less than one attack every 3 months) Rarely (less than one attack every 3 months) LA15526-9 LOINC
Regularly (an attack once a month on average) Regularly (an attack once a month on average) LA15524-4 LOINC
Sporadically (between 4 and 10 times a year) Sporadically (between 4 and 10 times a year) LA15525-1 LOINC

# Designation Tags
Migraine freq PhenX Short Name
How often do you generally have attacks [PhenX] Long Common Name
How often do you generally have attacks? Question Text

# Identifier Origin Version
7k8j5i3ox NLM CDEs 12-02-2025-download
67424-2 LOINC 2.69