Variable: ENCOUNTER_CLASS_V3_MAP

const ENCOUNTER_CLASS_V3_MAP: Readonly<Record<string, { code: string; display: string; }>>

HL7 v2 Table 0004 (Patient Class) → FHIR v3 ActCode (Encounter.class), per the IG Table HL70004 to V3 ActCode ConceptMap (each "is equivalent to"). Only these four v2 classes have a v3 ActCode equivalent; the remaining classes (R/B/C/N/U) map to themselves and stay in the v2-0004 system (V2_0004_SYSTEM) per the same map's V2→V2 rows.