Mental health care is where the Dutch system's reputation for efficiency breaks down most visibly, and the published maximum wait and the lived one are not the same number. Anyone referred into GGZ (mental health care) through a GP is affected, and knowing the official standard is what turns a delay into something actionable.
Longer than the official standard suggests, in most cases. The Treeknorm — the sector's agreed maximum acceptable wait — allows 4 weeks from referral to intake and 10 weeks from intake to the start of treatment, 14 weeks total. In practice, only around half of people referred into GGZ (mental health care) start treatment within that 14-week window, though roughly 80% are in by six months. Specialized GGZ for more complex conditions tends to run longer than generalistische basis-ggz, the lighter, short-course tier. If your wait is dragging past the Treeknorm, your zorgverzekeraar (health insurer) is obligated to help — call their wachtlijstbemiddeling or zorgbemiddeling line and ask them to place you with a provider that has capacity; insurers are required to offer this and it often moves faster than waiting it out yourself. It helps to register with more than one instelling (GGZ provider) at once while you wait, since nothing stops you running parallel waitlists. Your huisarts (GP) can also flag urgency in the referral letter if your situation warrants it. None of this is a fast system right now — GGZ access nationally has been under sustained pressure — so treat wachtlijstbemiddeling as a normal, expected step rather than a last resort.