surat/frontend/modules/register/views/case/_patient_detail.php

<?php

use yii\widgets\DetailView;
use yii\helpers\Html;

echo DetailView::widget([
  'model' => $model,
  'attributes' => [
    'hn',
    'title',
    'first_name',
    'last_name',
    'sex',
    'race',
    'nation',
    'card_id',
    'birthdate',
    //'age',
  ],
])?>

<?= Html::button('เลือกผู้ป่วย', [
    'class' => 'btn btn-success select-patient-btn',
    'data-json' => json_encode($model, JSON_UNESCAPED_UNICODE),
]) ?>