The Referral to Treatment (RTT) data set contains waiting times data for Welsh residents on an RTT pathway at a Welsh health board.
The data set is an aggregate snapshot of the patients waiting on an RTT pathway as at the end of the month. The return includes patients that are on an open pathway and those patients whose pathway was closed during the month.
Private patients are excluded.
Definitional guidance around RTT can be found at: https://dhcw.nhs.wales/information-services/information-standards/data-standards/data-standards-files/tips-what-to-do-when-you-receive-a-comment-pdf/
NHS Digital provide data on Welsh resident or registered patients treated in English NHS organisations.