Adding new fields to Vitals Form

Management and Administration
1

I am looking to add additional parameters to the Vitals Form to support the NEWS2 scoring system and some other parameters that are used in the UK and Europe.

Following instructions on other posts I have added a parameter to:

interface\forms\vitals\C_FormVitals.class.php

Using Head of bed angle as an example:

            ,[
                'type' => 'textbox'
                ,'title' => xl('Head of bed angle')
                ,'vitalsValue' => "get_hob"
                ,'precision' => 0
                ,'input' => 'hob'
                ,'unit' => 'degrees'
                ,'unitLabel' => 'degrees'
                ,'codes' => 'LOINC:code:hob'
            ]

And added hob column in the form_vitals table. I can see the Head of bed angle details are included in the POST when the form is submitted. But the hob column is not populated. Also if I add data into this column it is not shown in the tables when displaying vitals.

Is there a new process for adding parameters to the vitals form, or am I missing something?