What this is, in plain language
A detailed scan of the lower back to look at discs, nerves, and the spinal canal without using contrast.
Why a clinician orders it
Back pain that has not improved with conservative care, or red-flag symptoms like progressive leg weakness, numbness, or loss of bladder/bowel control.
Medical necessity — what insurers usually look at
Most insurers expect a documented 4–6 week trial of conservative treatment unless red-flag symptoms are present, per ACR Appropriateness Criteria and most commercial radiology policies.
Documentation to ask about
- ✓Duration and location of pain
- ✓Conservative treatment tried and the response
- ✓Any neurological symptoms (numbness, weakness, reflex changes)
- ✓Red-flag symptoms if present
Questions for your provider
- ?Has my plan's prior auth review been started?
- ?If denied, what is the appeal process?
Why this code is in our seed set
Most-billed spine MRI; included in the CMS Top 200 Ranked by Services.
Validated against
- •CMS Top 200 Level I CPT Codes Ranked by Services
- •ACR Appropriateness Criteria, Low Back Pain
- •AMA CPT code 72148 descriptor
Terms you'll see
Medical NecessityRead more →
The insurer is reviewing whether the service is clinically appropriate for your situation.
Conservative TreatmentRead more →
Lower-risk care that insurers may want documented before a bigger procedure.
Prior AuthorizationRead more →
Some services may need plan approval before they are performed.
Important: AuraCode is an educational tool. It does not provide medical, legal, or insurance advice, claims decisions, or approval guarantees. Final coverage depends on your specific plan, eligibility, diagnosis, submitted documentation, and your insurer's review.