An official website of the United States government
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

News | April 19, 2022

Pre-Authorization and Medical Necessity for Prescription Drugs: What You Need to Know

By TRICARE Communications

Prescription drugs are tools meant to support your overall health. TRICARE has procedures to make sure you get the right prescription drug to treat your condition. You must sometimes work with your doctor to get approval for coverage of certain drugs. Two examples of this are pre-authorization (also known as prior authorization) and medical necessity.
 
“TRICARE uses pre-authorization and medical necessity to make sure your prescription drug is safe, effective, medically necessary, and cost effective,” said U.S. Public Health Service Cmdr. Teisha Robertson, a pharmacist with the Defense Health Agency’s Pharmacy Operations Division. “If you don’t get pre-authorization approval when it’s required, TRICARE may not cover your prescription. Without a medical necessity form, you’ll pay a higher cost for your prescription drug.”
 
Here are some facts about pre-authorization and medical necessity to help you through the process.
 
Pre-authorization
As outlined in the TRICARE Pharmacy Program Handbook, you may need pre-authorization for your prescription if it:  
Express Scripts, the TRICARE pharmacy contractor, sometimes needs more information from your doctor about your prescription before it can be covered by your plan. Express Scripts uses this information to help control costs. They also must make sure the medication is an effective treatment. Express Scripts works with your doctor on these reviews.
 
To find out if your prescription needs pre-authorization, you can go to the TRICARE Formulary Search Tool. Enter the name of your prescription drug in the search tool. If the drug requires pre-authorization, a form will be available for you to download by clicking “Coverage rules apply.” Otherwise, the form won’t appear.
 
Keep in mind, only your doctor can submit the form. They can do this online by following the instructions on the form. Express Scripts will update you on the status of your form. You can also log in to your Express Scripts account or Express Scripts mobile app at any time to check the status. Your approval will apply to network pharmacies, TRICARE Pharmacy Home Delivery, and military pharmacies.
 
Medical necessity
Some drugs require proof from your doctor of medical necessity. Your TRICARE plan has a list of generic and brand-name drugs that TRICARE covers. It’s called the formulary list. TRICARE also covers non-formulary drugs, but at a higher copayment. If evidence of medical necessity is approved for these drugs, you can get your non-formulary drug at the formulary cost, which will be a lower copayment. Medical necessity is also required for active duty service members to get the non-formulary drug at no cost.
 
How can you find out if your prescription drug needs medical necessity? You can find this by looking it up on the TRICARE Formulary Search Tool. As with pre-authorization, only your doctor can submit the form. Your medical necessity approval will apply to network pharmacies, TRICARE Pharmacy Home Delivery, and military pharmacies.
 
Keep in mind, coverage for some non-formulary drugs requires you to use home delivery. You can check the online search tool to confirm.
 
Find more information about pre-authorization and medical necessity on the TRICARE website. If you can’t find a form you need or have questions, reach out to Express Scripts.
 
Remember, you can always check the TRICARE Formulary Search Tool to see how much you’ll pay out of pocket for your prescriptions. You can also check out the TRICARE Pharmacy Program Handbook for everything you need to know about your pharmacy benefit.
 
Would you like the latest TRICARE news sent to you by email? Visit the TRICARE Subscriptions page today, and create your personalized profile to get benefit updates, news, and more.
 
Map of the TRICARE West Region

Live in the West Region? Provide Your Payment In...

News
Jan. 06, 2025

Do you currently live in the West Region? Or, do you live in one of the six states that moved to the West...
Read More
Nurse wearing white scrubs answers phone.

Unlock Your Health Through the MHS Nurse Advice ...

News
Dec. 31, 2024

Do you know what to do when you or a family member feel sick, but it’s outside of business hours or it’s the...
Read More
Man and woman embrace each other.

Preview Four Changes Coming to TRICARE in 2025

News
Dec. 23, 2024

With the end of the year approaching, it’s a good time to consider your family’s healthcare needs for the...
Read More
Smiling pregnant woman sits down with a bandage on her arm

Get Vaccinated With TRICARE: RSV Immunizations O...

News
Dec. 20, 2024

Respiratory syncytial virus is a common but potentially dangerous respiratory illness. Immunizations are...
Read More
Man and woman holding a baby and smiling

Reminder: New TRICARE Regional Contracts in the ...

News
Dec. 19, 2024

Changes are coming to TRICARE’s regional contracts Jan. 1, 2025. These changes will affect you if you live in...
Read More
Service member works with pharmaceuticals.

New Prescription Refill System Coming to Militar...

News
Dec. 17, 2024

Do you get your prescriptions at a military pharmacy in the U.S.? You should know that the Defense Health...
Read More
Doctor uses a tablet.

Check the TRICARE Network Provider Directories A...

News
Dec. 11, 2024

If you get care outside of a military hospital or clinic, it’s important to understand your civilian provider...
Read More
Image of person holding cellphone and looking at calendar app. Text reads "TRICARE Open Season 2024: Open Season Ends Soon! Nov. 11 - Dec. 10"

TRICARE Open Season Ends Dec. 10: Your Last Chan...

News
Dec. 05, 2024

Time is running out to review and update your TRICARE health plan for 2025. TRICARE Open Season ends Tuesday,...
Read More

Jan. 6, 2025

Live in the West Region? Provide Your Payment Information to TriWest Now

Do you currently live in the West Region? Or, do you live in one of the six states that moved to the West Region on Jan. 1? If you pay for your TRICARE coverage using a bank electronic funds transfer, credit card, or debit card, you must now securely give your recurring payment information to the West Region contractor, TriWest Healthcare Alliance.

Dec. 31, 2024

Unlock Your Health Through the MHS Nurse Advice Line

Do you know what to do when you or a family member feel sick, but it’s outside of business hours or it’s the weekend? TRICARE has a service called the Military Health System Nurse Advice Line that can help when you need healthcare guidance.

Dec. 23, 2024

Preview Four Changes Coming to TRICARE in 2025

With the end of the year approaching, it’s a good time to consider your family’s healthcare needs for the coming year. As you think about things like scheduling preventive care visits and knowing your 2025 TRICARE costs, you should also note some changes coming to TRICARE in 2025.

Dec. 20, 2024

Get Vaccinated With TRICARE: RSV Immunizations Offer Protection for High-Risk Individuals

Respiratory syncytial virus is a common but potentially dangerous respiratory illness. Immunizations are available to protect TRICARE beneficiaries who are considered high risk from RSV infection. These immunizations help protect older adults and newborns, who face higher risks from respiratory illness.

Dec. 19, 2024

Reminder: New TRICARE Regional Contracts in the U.S. in 2025

Changes are coming to TRICARE’s regional contracts Jan. 1, 2025. These changes will affect you if you live in the U.S. The key to a smooth transition is to take a few simple steps now, before the end of the year.

Dec. 17, 2024

New Prescription Refill System Coming to Military Pharmacies: What To Know

Do you get your prescriptions at a military pharmacy in the U.S.? You should know that the Defense Health Agency is upgrading to a new prescription refill system at military pharmacies. The new Interactive Voice Response system will help standardize refill notices.

Dec. 11, 2024

Check the TRICARE Network Provider Directories Ahead of 2025

If you get care outside of a military hospital or clinic, it’s important to understand your civilian provider options. TRICARE’s new regional contracts, which begin Jan. 1, 2025, will affect the TRICARE provider networks in the U.S. You’re now able to check the network provider directories for both the East Region and West Region.

Dec. 5, 2024

TRICARE Open Season Ends Dec. 10: Your Last Chance To Update Health Coverage for 2025

Time is running out to review and update your TRICARE health plan for 2025. TRICARE Open Season ends Tuesday, Dec. 10, marking your last day to enroll in a new plan or make changes to your health coverage.

Dec. 3, 2024

Reminder: TRICARE Regions Are Changing Jan. 1, 2025

There will be changes to the TRICARE regions in the U.S. on Jan. 1, 2025. While there will still be two TRICARE regions, six states currently in the East Region will move to the West Region. There are also some zip codes in four of these states that will be exceptions to the region changes.

Nov. 27, 2024

DHA Hospitals Honored for Surgical Excellence

The American College of Surgeons National Surgical Quality Improvement Program has recognized three Defense Health Agency hospitals for their outstanding surgical care.