Introduction
The prior authorization process for Blue Cross and Blue Shield of Montana (BCBSMT) is a crucial step in ensuring timely approvals and minimizing treatment delays. This guide provides a detailed, step-by-step process for completing and submitting the prior authorization form correctly, reducing the likelihood of denials.
What is Prior Authorization?
Prior authorization is a requirement by BCBSMT that mandates healthcare providers to obtain approval before delivering certain medical services, procedures, or prescriptions. This process ensures that treatments are medically necessary and align with the insurer’s coverage guidelines.
When is Prior Authorization Required?
BCBSMT requires prior authorization for a variety of services, including:
- Advanced imaging (MRI, CT scans, PET scans)
- Certain prescription medications
- Durable medical equipment (DME)
- Physical, occupational, and speech therapy
- Home healthcare services
- Elective surgeries and specialized procedures
Step-by-Step Guide to Completing the BCBSMT Prior Authorization Form
Step 1: Download the Prior Authorization Form
Where to get it

Step 2: Enter Patient Information
Provide accurate patient details, including:
- Full name
- Date of birth
- BCBSMT member ID number
- Contact information
Step 3: Enter Provider Information
The requesting provider must include:
- Full name and National Provider Identifier (NPI)
- A clinic or hospital name
- Contact details (phone, fax, email)
- Specialty information
Step 4: Specify the Requested Service
Clearly describe the requested service or treatment, including:
- CPT or HCPCS codes
- ICD-10 diagnosis codes
- Frequency and duration (if applicable)
Step 5: Provide Medical Necessity Justification
Attach supporting documents to strengthen the request, such as:
- Patient’s medical history and previous treatments
- Lab reports and diagnostic test results
- Physician’s treatment plan and expected outcomes
- Clinical guidelines or medical literature supporting the request
Step 6: Submit the Form
BCBSMT allows multiple submission methods for prior authorization requests:
- Fax: Use the designated fax number found on the form
- Online Portal: Submit electronically via the BCBSMT provider portal
- Phone: Contact BCBSMT’s provider support for urgent requests
Step 7: Track Your Request
After submission, track the status of your request by:
- Logging into the BCBSMT provider portal
- Contacting provider support
- Monitoring fax or email notifications for approval, additional documentation requests, or denials
Common Reasons for Prior Authorization Denials
To minimize denials, ensure that:
- All patient and provider details are accurate
- The request aligns with BCBSMT’s medical necessity guidelines
- All required documentation is included
- The request is submitted within the required timeframe
How Long Does Prior Authorization Take?
BCBSMT typically processes prior authorization requests within the following timeframes:
- Routine requests: 5-7 business days
- Urgent requests: 24-48 hours
Conclusion
Following the correct steps for submitting a Blue Cross and Blue Shield of Montana prior authorization request ensures timely approvals and efficient patient care. By gathering accurate information, providing comprehensive medical justifications, and using the correct submission channels, healthcare providers can minimize delays and improve approval rates.
For additional assistance, visit the BCBSMT Prior Authorization page or contact provider support.
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