def _create_pid_segment(fhir_resource: dict) -> Segment:
pid = Segment("PID")
pid.PID_1 = str(1)
for id_ in fhir_resource.get("identifier"):
id_value = id_.get("value", "")
id_type = id_.get("type", {})
if any([id_value, id_type]):
pid_3 = pid.add_field("PID_3")
pid_3.PID_3_1 = id_value
pid_3.PID_3_4 = id_.get("system", "")
if id_type_coding := id_type.get("coding"):
pid_3.PID_3_5 = id_type_coding[0].get("code", "")
if assigner := id_.get("assigner"):
pid_3.PID_3_9 = assigner.get("display", "")
