Army Information Management Systems & TRICARE Guide

## Quick answer In the TRICARE ecosystem, Information Management (IM) systems are the digital backbone that connects your military electronic health record (EHR) to regional contractors (Humana Military or TriWest). These systems, primarily centered around **MHS GENESIS**, allow Soldiers, Veterans, and families to manage referrals, view lab results, and coordinate care between military hospitals and civilian providers.

## In detail Military Information Management Systems ensure that medical data flows seamlessly between the Department of Defense (DoD), the Department of Veterans Affairs (VA), and private sector providers.

### MHS GENESIS: The Core System As of 2026, **MHS GENESIS** is the standard EHR for all military treatment facilities (MTFs) worldwide. It replaced legacy systems like ALTHA and CHCS. For the beneficiary, the "MHS GENESIS Patient Portal" is the primary interface used to: * Schedule appointments at MTFs. * Exchange secure messages with care teams. * View clinical notes and laboratory reports. * Request prescription renewals to be processed by Express Scripts.

### Regional Contractor Systems (T-5 Contract) Under the T-5 contract (effective 2025/2026), your medical information is managed by one of two regional contractors. These contractors maintain their own IM systems for claims processing and authorizations: * **East Region:** Humana Military. * **West Region:** TriWest Healthcare Alliance. * **Overseas:** International SOS.

These organizations use data exchange protocols to ensure that if a Soldier is referred to a civilian specialist, the "Authorization for Care" is visible in the contractor's portal within 2–5 business days.

### DEERS (Defense Enrollment Eligibility Reporting System) The most critical database for any Army family is **DEERS**. Information management starts here; if your address or status (Active Duty to Retiree) is not updated in DEERS, your "eligibility flag" will fail in the MHS GENESIS and regional contractor systems, leading to denied claims.

### Data Security and HIPAA All TRICARE IM systems must comply with the Health Insurance Portability and Accountability Act (HIPAA) and DoD Cybersecurity requirements. Using the Common Access Card (CAC) or DS Logon is mandatory for multi-factor authentication (MFA) to access these records.

## Who this applies to * **Active Duty Soldiers:** Must use MHS GENESIS for readiness tracking and "fit for duty" documentation. * **National Guard & Reserve:** Depend on IM systems to track Line of Duty (LOD) care and TRICARE Reserve Select (TRS) eligibility. * **Retirees:** Use these systems to manage chronic care transitions from MTFs to civilian networks. * **Family Members:** Rely on the Patient Portal to manage pediatric records and specialist referrals.

Common scenarios

### Scenario 1: The Specialist Referral Sgt. Miller (Active Duty) sees an Army doctor for knee pain. The doctor enters a referral into **MHS GENESIS**. Because Sgt. Miller is in the West Region, the data is pushed to **TriWest**. Sgt. Miller logs into the TriWest portal 48 hours later to see his approved authorization number for an orthopedic surgeon in Denver.

### Scenario 2: Moving from East to West The Thompson family (TRICARE Select) moves from Fort Liberty (East) to Fort Carson (West). They update their address in **DEERS**. This update triggers a "portability" event, allowing their records to be accessible to **TriWest** so their 2026 deductible of $150–$300 (depending on Group) carries over correctly.

### Scenario 3: Prescription Refills A retiree in Florida needs a refill. They use the **Express Scripts** mobile app. The IM system verifies their eligibility via DEERS and checks their clinical history in the broader MHS cloud to ensure there are no drug interactions before shipping the 90-day supply.

## Related terms * **DS Logon:** A secure identity credential that allows access to many DoD and VA websites without a CAC. * **T-5 Contract:** The fifth generation of TRICARE managed care support contracts, which brought TriWest to the West Region. * **Health Information Exchange (HIE):** The electronic movement of health-related information among organizations. * **Beneficiary Web Enrollment (BWE):** The online tool used to join or change TRICARE plans. * **ICD-10 Codes:** The international standard for coding medical diagnoses used within IM systems for billing.

## Sources * TRICARE Official Site: [tricare.mil](https://www.tricare.mil) * MHS GENESIS Information: [health.mil/mhsgenesis](https://health.mil/mhsgenesis) * Humana Military (East): [humanamilitary.com](https://www.humanamilitary.com) * TriWest Healthcare Alliance (West): [triwest.com](https://www.triwest.com)

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*Disclosure: Army Knowledge Online AKO is an independent reference site and is not the official TRICARE program or a government agency. For official policy, please visit TRICARE.mil.*