This code system http://hl7.org/fhir/v2/0127 defines the following codes:

CodeDisplay
AAAnimal Allergy
DADrug allergy
EAEnvironmental Allergy
FAFood allergy
LAPollen Allergy
MAMiscellaneous allergy
MCMiscellaneous contraindication
PAPlant Allergy

Additional Language Displays

Codedenl
AADierenallergie
DAMedikamentenallergieMedicatieallergie
EAOmgevingsallergie
FANahrungsmittelallergieVoedselallergie
LAPollenallergie
MASonstige AllergieOverige allergie
MCSonstige KontraindikationOverige contraindicatie
PAPlantallergie