PA Lookup
If you have questions about prior authorizations, please call:
Member and Recipient Service Line: 1-877-685-2415
Provider Support Service Line: 1-855-250-1539
Radiologic examination, temporomandibular joint, open and closed mouth; bilateral
How to Submit
N/A - No authorization is required
Temporomandibular joint arthrography, radiological supervision and interpretation
How to Submit
N/A - No authorization is required
Magnetic resonance (eg, proton) imaging, temporomandibular joint(s)
Authorization Guidelines
See Evolent site for specific requirements
Reauthorization Guidelines
See Evolent site for specific requirements
How to Submit
Please submit your request to Evolent
Cephalogram, orthodontic
How to Submit
N/A - No authorization is required
Orthopantogram (eg, panoramic x-ray)
How to Submit
N/A - No authorization is required
Radiologic examination; neck, soft tissue
How to Submit
N/A - No authorization is required
Radiologic examination; pharynx or larynx, including fluoroscopy and/or magnification technique
How to Submit
N/A - No authorization is required
Complex dynamic pharyngeal and speech evaluation by cine or video recording
How to Submit
N/A - No authorization is required
Radiologic examination, salivary gland for calculus
How to Submit
N/A - No authorization is required
Sialography, radiological supervision and interpretation
How to Submit
N/A - No authorization is required
Computed tomography, head or brain; without contrast material
Authorization Guidelines
See Evolent site for specific requirements
Reauthorization Guidelines
See Evolent site for specific requirements
How to Submit
Please submit your request to Evolent
Computed tomography, head or brain; with contrast material(s)
Authorization Guidelines
See Evolent site for specific requirements
Reauthorization Guidelines
See Evolent site for specific requirements
How to Submit
Please submit your request to Evolent
Computed tomography, head or brain; without contrast material, followed by contrast material(s) and further sections
Authorization Guidelines
See Evolent site for specific requirements
Reauthorization Guidelines
See Evolent site for specific requirements
How to Submit
Please submit your request to Evolent
Computed tomographic angiography (CTA), head and neck, with contrast material(s), including noncontrast images, when performed, and image postprocessing
Authorization Guidelines
See Evolent site for specific requirements
Reauthorization Guidelines
See Evolent site for specific requirements
How to Submit
Please submit your request to Evolent
Computed tomographic (CT) cerebral perfusion analysis with contrast material(s), including image postprocessing performed with concurrent CT or CT angiography of the same anatomy (List separately in addition to code for primary procedure)
How to Submit
N/A - No authorization is required
Computed tomographic (CT) cerebral perfusion analysis with contrast material(s), including image postprocessing performed without concurrent CT or CT angiography of the same anatomy
Authorization Guidelines
See Evolent site for specific requirements
Reauthorization Guidelines
See Evolent site for specific requirements
How to Submit
Please submit your request to Evolent
Computed tomography, orbit, sella, or posterior fossa or outer, middle, or inner ear; without contrast material
Authorization Guidelines
If your request is for OUTPATIENT services, please see the Evolent site for specific requirements. If your request is for INPATIENT services, please submit any records and any other information that you believe support the member has met the applicable medical necessity criteria to Trillium.
Conditional Requirements
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
How to Submit
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
Computed tomography, orbit, sella, or posterior fossa or outer, middle, or inner ear; with contrast material(s)
Authorization Guidelines
If your request is for OUTPATIENT services, please see the Evolent site for specific requirements. If your request is for INPATIENT services, please submit any records and any other information that you believe support the member has met the applicable medical necessity criteria to Trillium.
Conditional Requirements
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
How to Submit
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
Computed tomography, orbit, sella, or posterior fossa or outer, middle, or inner ear; without contrast material, followed by contrast material(s) and further sections
Authorization Guidelines
If your request is for OUTPATIENT services, please see the Evolent site for specific requirements. If your request is for INPATIENT services, please submit any records and any other information that you believe support the member has met the applicable medical necessity criteria to Trillium.
Conditional Requirements
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
How to Submit
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
Computed tomography, maxillofacial area; without contrast material
Authorization Guidelines
If your request is for OUTPATIENT services, please see the Evolent site for specific requirements. If your request is for INPATIENT services, please submit any records and any other information that you believe support the member has met the applicable medical necessity criteria to Trillium.
Conditional Requirements
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
How to Submit
If your request is for OUTPATIENT services, please submit the request to Evolent. If your request is for INPATIENT services, please submit the request to Trillium.
If you find any wrong or out of date information on our pages, we want to know. Please email info@TrilliumNC.org with any corrections.