The VA laid the groundwork for the Apple app when it launched its first health application programming interface late previous year, which it said would allow veterans "to interact with their own personal health data within innovative mobile and web-based apps".
Now it is extending the benefits to the estimated 9 million veterans across the US, who will be able to access medical information from participating institutions inside the Health app.
The health data that will be stored on the app will include everything from allergies to immunizations, lab results, medications, vitals and more.
The data is encrypted and is protected via passcode, Touch or Face ID. More and more hospitals are signing up to the service, as are medical-record vendors.
"By building upon the Veterans Health API, we're raising the bar in collaborating with private sector organizations to create and deploy innovative digital products for Veterans", VA Secretary Robert Wilkie said in a statement.
"For veterans, we think that it's going to be very empowering", Lynch said.
"Given Apple's public and ongoing commitment to privacy and security and the holistic manner in which they go about providing a trusted platform in iOS, I would think Apple's health records on iPhone is likely the most secure way in which veterans can access their VA health records", Weidman said.
For those not in the know, Apple Health Records lets patients aggregate health records from multiple institutions alongside their patient-generated data.
Doctors' progress notes, documentation of health-care encounters that serve as the backbone of treatment, are not yet on Apple's syncing list. "It's truly an honor to contribute to the improved healthcare of America's heroes".
Apple's announcement follows plans that Microsoft shared last week to make patient information more accessible to all involved parties, by storing health records on the Azure cloud.
The VA provides service to veterans over 1,243 facilities all over the U.S.