* BHS-12: "REFERENCE BATCH CONTROL ID" - creates it if necessary
*/
public ST getBhs12_REFERENCEBATCHCONTROLID() {
ST ret = null;
try {
Type t = this.getField(12, 0);
ret = (ST)t;
} catch (ClassCastException cce) {
HapiLogFactory.getHapiLog(this.getClass()).error("Unexpected problem obtaining field value. This is a bug.", cce);
throw new RuntimeException(cce);
} catch (HL7Exception he) {