National Directory of Healthcare Providers & Services (NDH) Implementation Guide, published by HL7 International / Patient Administration. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-us-ndh/ and changes regularly. See the Directory of published versions
This case-sensitive code system http://hl7.org/fhir/us/ndh/CodeSystem/LanguageProficiencyCS defines the following codes:
Code
Display
Definition
00
No proficiency
Unable to function in the spoken language.
10
Elementary proficiency
Able to satisfy minimum courtesy requirements and maintain very simple face-to-face conversations on familiar topics. A native speaker must often use slowed speech, repetition, paraphrase, or a combination of these to be understood by this individual.
20
Limited working proficiency
Able to satisfy routine social demands and limited work requirements.
30
General professional proficiency
Able to speak the language with sufficient structural accuracy and vocabulary to participate effectively in most formal and informal conversations in practical, social and professional topics.
40
Advanced professional proficiency
Able to use the language fluently and accurately on all levels normally pertinent to professional needs.
50
Functional native proficiency
Speaking proficiency is functionally equivalent to that of a highly articulate well-educated native speaker and reflects the cultural standards of the country where the language is natively spoken.