Theater Medical Data Store (TMDS) is a web-based application used to view Service members’ medical treatment information recorded in the combat zone. TMDS views and tracks ill or injured patients as they move through theater levels of care, sustaining base medical treatment facilities (MTFs) and those shared with the Department of Veterans Affairs (VA).
TMDS updates the Clinical Data Repository (CDR), where all Service members' electronic health records (EHRs) reside. This information is also made available to the VA through an interface known as Bidirectional Health Information Exchange-Theater (BHIE-T).