The outage affecting the Quest Appointment API has now been fully resolved.
Thank you for your patience while we monitored the situation, and we’re sorry for any disruption this may have caused.

This issue is still ongoing. We are continuing to investigate.

Quest Diagnostics is currently experiencing an outage with its Appointment Scheduling API. The following endpoints are impacted:
- /v3/order/psc/appointment/availability
- /v3/order/{order_id}/psc/appointment/book
- /v3/order/{order_id}/psc/appointment/reschedule
- /v3/order/{order_id}/psc/appointment/cancel
- /v3/order/psc/appointment/cancellation-reasons
- /v3/order/{order_id}/psc/appointment
The issues are intermittent and returning 500 errors.
Our team is actively monitoring the situation, and we’ll share updates as soon as they’re available.