High-intensity daily personal activities are a specific, defined category under the NDIS Pricing Arrangements — things like tracheostomy management, PEG feeding, complex bowel care, subcutaneous injections, and ventilator support. They pay meaningfully more than standard support work, but they also require formal, competency-based training before you can be rostered for them.
Unlike general disability support, high-intensity supports require documented competency assessment, usually delivered by a registered nurse and often specific to an individual participant's needs, not just a generic course certificate. Providers are required to keep records of this training, and it's checked in provider audits.
Some larger NDIS providers train existing staff internally once you've built a track record in standard support work; others expect you to arrive with a relevant health background (like an EN or AIN qualification) that's a shorter step to competency assessment. If this is a direction you want to move in, it's worth asking a provider directly what their internal pathway looks like rather than assuming you need external study first.
High-intensity support rates sit noticeably above standard support work under the relevant award classifications, reflecting the clinical risk involved. It's worth being honest with yourself about whether you want that level of clinical responsibility before pursuing it purely for the pay increase — providers can tell the difference, and participants depending on this care certainly can.