Project Description:

This project will develop an Unique Mobile Health Application Identifier (UMHAI) which uniquely identifies a mobile health application instance as installed on a mobile device and used by a specific person.  The UMHAI  enables identification of application instance to provide precision therapy and facilitate recall, maintenance, transparency and traceability.

The project will consider data elements which may be used to create, or incorporated in, a UMHAI.  Potential data elements may include Application name, App Builder, version, build number, hosting device, and unique identifier(s) for the person.

This effort will be aligned with existing work in HL7 standards (e.g., CDA, FHIR, V2) on UDI.

Core Requirements:

  • Uniquely Identifies Mobile Health App Instance as installed on a Mobile "Device" and used by a specific person.
  •  Potential data elements
    • Application name
    • App Builder
    • version
    • build number
    • hosting device 
    • unique identifier(s)
      • Unique Device Identifier(s) for a Patient’s Implantable Device(s) - A unique numeric or alphanumeric code that consists of a device identifier (DI) and a production identifier (PI) -FDA approved device
      • Does UMHAI change when new data generating devices are added to MH App linkage?  Yes
      • Need to define MH App State Diagram.
  • Single User (keep it simple) - App has a point of access for a single user
    • Differentiate but be able to consolidate data from same user using different app versions
  • Multiple User/Single device - Single device is used by two or more users
    • MH App Prescription is linked to UMHAI Identifier
  • Screening Device - Anonymous Subjects  need to have UMHAI defined even without subject information.
    • Cardiac Screening EKG/ECG
  • add Notes from meeting
    • Data Retention Policy
    • Subject/User Data 
    • UMHAI ID Authority (Does not exist today)
    • ID Authority (Credentials/ Certificate/  App Store)
Static (one time)Sporadic Changes (infrequent changes)Dynamic (frequent changes)Comment:UMHAI APIs

App Name

App VersionManufacture ProvidedGet current UMHAI ID
App Category

Needs Ontology for Mobile Health App categories , possibly realm specific

App Demographics

  • App Builder
  • Manufacture
  • OS Platform

Hosting Environment
  • OS Version
  • Mobile Device Model
  • Mobile Device Make

Linked Devices (Context)?

    • External Devices 

App may need to be updated when OS Version is updated.

Do we need to know about wearable or smart devices used by the app?

Subject/ User

User may not subject/ Clinical Use/ Public Health or Subject for healthcare

Direct/ Indirect Use ( Parent/ Child/ Guardian/ Care Provider/ Custodian)

Context of use
Context of use

needs more discussion with use cases for Static or Dynamic

Digital Therapeutics

App Recall

linked devices are supported or not supported

No PHI User will need some form of authentication (Biometric, Pin)

UML Deployment Resources:

FHIR Resources

USCDI Mapping


  • Device include physical, virtual and meta
  • No labels


  1. Re: hosting device. I suggest clarifying what this means in the context: is it the personal digital device on which the instance is installed?

    Re: Uniquely Identifies Mobile Health App Instance as installed on a Mobile "Device" and used by a specific person, I would clarify the last portion "used by a specific person". As I understand this, it means: if the app allows multiple users via separate login, then the UMHAI is different for each established user.

  2. To "Potential data element" I suggest adding: operating system