Scientific Computing and Data / Mount Sinai Data Warehouse / Leaf / Leaf Application Status and Roadmap

Leaf Application Status and Roadmap

Last Updated: December 27, 2022



Scheduled maintenance to Leaf will take place on Thursday, January 11, from 5:00 to 7:00 pm, to fix security vulnerabilities and apply some bug fixes in critical systems software. All system access will be affected and service will be interrupted at that time. Please plan your work ahead of time and log out of the application during scheduled maintenance.

Quality improvement and research users can use Leaf to conveniently query the Mount Sinai Data Warehouse. Leaf only accesses de-identified data. Documentation and user service are available.

Leaf supports these query domains:

  • Conditions (diagnoses) using ICD-10-CM
  • Visit (encounter) locations
  • Lab results using LOINC
  • Medications using ATC
  • Procedures using CPT4
  • Demographics, such as current age, ethnicity, gender, race and vital status
  • Vitals
  • Patient cohorts in Sinai repositories, starting with BioMe, BioBank, the Imaging Research Warehouse 1.0, the Cancer Institute Biorepository, and Cancer Patients


Leaf contains these known bugs:

  • Patient List temporarily disabled
  • Queries that last longer than 1 minute terminate



These improvements to Leaf are ongoing for the first half of 2022:

  • Fix high-priority known bugs
  • Enhance the Leaf development and configuration process to make it easier to support Leaf’s users

In addition, Leaf will access all improvements that are made to MSDW2.


Read Leaf’s Tutorial for usage documentation. If you are experiencing an access issue or error within the application, please submit a ticket.