The language communication capabilities for a Person. "The patient's primary language. HL7 recommends using ISO table 639" - HL7 Version 2.8, PID-15. "The next of kin/associated party's primary speaking language." - HL7 Version 2.8, NK1-20. "Languages which may be used to communicate with the patient about his or her health" - HL7 FHIR, Patient.communication. "A language the practitioner can use in patient communication." - HL7 FHIR, Practitioner.communication