ladill-care/app/Models/Diagnosis.php

<?php

namespace App\Models;

use App\Models\Concerns\BelongsToOwner;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class Diagnosis extends Model
{
    use BelongsToOwner;

    protected $table = 'care_diagnoses';

    protected $fillable = [
        'owner_ref', 'consultation_id', 'code', 'description', 'is_primary', 'notes',
    ];

    protected function casts(): array
    {
        return ['is_primary' => 'boolean'];
    }

    public function consultation(): BelongsTo
    {
        return $this->belongsTo(Consultation::class, 'consultation_id');
    }
}