A code indicating whether the language is preferred, secondary, or practiced in an unconventional or limited way.
This code system http://hl7.org/fhir/us/sw/CodeSystem/cimi-entity-LanguageQualifierCS defines the following codes:
| Code | Display | Definition |
| preferred_spoken | Preferred language | Preferred language |
| secondary_spoken | Secondary language | Secondary language |
| apraxia | Difficulty speaking due to motor disorder | Difficulty speaking due to motor disorder |
| aphasia | Difficulty in speaking, listening, reading, and writing | Difficulty in speaking, listening, reading, and writing |
| signs | Uses sign language | Uses sign language |
| braille | Reads using braille | Reads using braille |
| lipreads | Uses lipreading (speechreading) | Uses lipreading (speechreading) |
| aac | Uses augmentative and alternative communication | Uses augmentative and alternative communication |
