Aetna modified CPB 0628 for spinal ultrasound, effective December 12, 2025. Here's what billing teams need to know.
Aetna, a CVS Health company, updated Clinical Policy Bulletin CPB 0628 governing spinal ultrasound coverage under CPT 76800. The core message hasn't shifted dramatically, but the policy sharpens the line between covered and non-covered use cases — and that line will determine whether your claims pay or deny. If your practice bills spinal ultrasound for anything outside of neonatal or intraoperative indications, expect denials.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Aetna, a CVS Health company |
| Policy | Spinal Ultrasound — CPB 0628 |
| Policy Code | CPB 0628 |
| Change Type | Modified |
| Effective Date | December 12, 2025 |
| Impact Level | High — broad exclusions affect most adult spinal ultrasound use |
| Specialties Affected | Radiology, Neonatology, Pediatric Surgery, Anesthesiology, Pain Management, Neurology |
| Key Action | Audit charge capture for CPT 76800 and related injection codes before December 12, 2025 |
Aetna Spinal Ultrasound Coverage Criteria and Medical Necessity Requirements 2025
Aetna's spinal ultrasound coverage policy under CPB 0628 is narrow by design. CPT 76800 — ultrasound of the spinal canal and contents — is medically necessary in only two defined settings: newborns and infants with specific clinical indications, and intraoperative procedures.
That's it. Two buckets.
For newborns and infants, Aetna covers CPT 76800 when used for seven specific indications. Those are:
| # | Covered Indication |
|---|---|
| 1 | Detection of injury sequelae, including hematoma after spinal tap or birth injury, post-traumatic cerebrospinal fluid leakage, and sequelae of prior instrumentation, infection, or hemorrhage |
| 2 | Evaluation of suspected defects such as cord tethering, diastematomyelia, hydromyelia, and syringomyelia |
| 3 | Guidance for lumbar puncture |
| 4 | Lumbosacral stigmata associated with spinal dysraphism |
| 5 | Post-operative assessment for cord retethering |
| 6 | Spectrum of caudal regression syndrome, including anal atresia or stenosis and sacral agenesis |
| 7 | Visualization of fluid with blood product characteristics within the spinal canal in neonates and infants with intracranial hemorrhage |
Medical necessity documentation needs to map directly to one of these indications. "Spinal ultrasound" on a claim without a diagnosis supporting one of the above will not survive review.
The second covered category is intraoperative use. Aetna covers CPT 76800 when performed during surgery. This is a practical carve-out — intraoperative spinal ultrasound has a recognized role in tumor resection and cord monitoring. Document the surgical context clearly in the operative note.
Prior authorization requirements are not explicitly addressed within the public CPB 0628 policy text itself. That said, given the narrow covered indications and the high volume of non-covered uses listed, your prior auth team should verify requirements at the plan level before scheduling. Call the number on the patient's card. Don't assume.
Aetna Spinal Ultrasound Exclusions and Non-Covered Indications
This is where most billing teams will feel the pressure. Aetna's Aetna spinal ultrasound coverage policy explicitly labels a wide range of uses as experimental, investigational, or unproven. Non-covered means no reimbursement — not reduced reimbursement, not prior auth with potential approval. Denial.
The experimental and non-covered list includes:
Diagnostic ultrasound for neuromusculoskeletal conditions. This is the big one. If a physician is using spinal ultrasound to evaluate muscles, tendons, or soft tissue around the spine for any adult patient, Aetna will not cover it. The policy is explicit: all indications outside the covered categories are excluded.
Scoliosis curve flexibility evaluation before surgery. This comes up in spine surgery pre-op planning. Aetna won't cover spinal ultrasound used to assess curve flexibility before surgical intervention.
Spinal epidural abscess evaluation and management. This surprises some teams. Despite the clinical utility, Aetna does not consider spinal ultrasound medically necessary for epidural abscess.
Neuraxial (epidural and subarachnoid) block guidance. Anesthesiology teams using ultrasound to guide epidural or spinal block placement — this is explicitly excluded. The exception only covers lumbar puncture guidance in newborns and infants.
Lumbar puncture guidance in adults. If the patient isn't a newborn or infant, ultrasound guidance for lumbar puncture is not covered under CPB 0628.
Spinal muscular atrophy management. Aetna does not cover spinal ultrasound as part of managing individuals with spinal muscular atrophy.
SonixGPS. This real-time ultrasound-guided spinal anesthesia system is explicitly named as experimental. If your anesthesiology team uses this device, bill elsewhere — it won't pass Aetna's medical necessity review.
The real issue here is the pain management and anesthesiology overlap. Teams that routinely use ultrasound guidance for epidurals and nerve blocks under the CPT 624xx and 644xx series need to understand this policy clearly. Those injection codes are listed as "Other CPT codes related to the CPB" — meaning they're connected to the policy but not covered when billed with spinal ultrasound guidance that Aetna has excluded.
If your practice does any volume of ultrasound-guided neuraxial procedures on Aetna members, talk to your compliance officer before December 12, 2025. The exposure is real.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Neonatal/infant — injury sequelae (hematoma, CSF leak, hemorrhage, infection) | Covered | CPT 76800 | Medical necessity documentation required |
| Neonatal/infant — cord tethering, diastematomyelia, hydromyelia, syringomyelia | Covered | CPT 76800 | Diagnosis must support suspected defect |
| Neonatal/infant — lumbar puncture guidance | Covered | CPT 76800 | Age-restricted; not covered in adults |
| Neonatal/infant — lumbosacral stigmata / spinal dysraphism | Covered | CPT 76800 | Document stigmata clearly in clinical notes |
| Neonatal/infant — post-op cord retethering assessment | Covered | CPT 76800 | Prior surgical history required in documentation |
| Neonatal/infant — caudal regression syndrome (anal atresia, sacral agenesis) | Covered | CPT 76800 | Specific congenital anomalies required |
| Neonatal/infant — blood product visualization in spinal canal (with intracranial hemorrhage) | Covered | CPT 76800 | Concurrent intracranial hemorrhage diagnosis required |
| Intraoperative use | Covered | CPT 76800 | Document surgical context in operative report |
| Neuromusculoskeletal evaluation — all indications | Not Covered / Experimental | CPT 76800 | Aetna considers effectiveness unestablished |
| Scoliosis curve flexibility evaluation (pre-surgical) | Not Covered / Experimental | CPT 76800 | Specifically named in exclusions |
| Spinal epidural abscess evaluation and management | Not Covered / Experimental | CPT 76800 | No coverage even with acute infection diagnosis |
| Neuraxial (epidural/subarachnoid) block guidance | Not Covered / Experimental | CPT 76800 | Applies to CPT 623xx and 624xx series procedures |
| Lumbar puncture guidance — adults | Not Covered / Experimental | CPT 76800 | Only covered in newborns and infants |
| Spinal muscular atrophy management | Not Covered / Experimental | CPT 76800 | Explicitly excluded |
| SonixGPS system | Not Covered / Experimental | CPT 76800 | Named device; no coverage |
Aetna Spinal Ultrasound Billing Guidelines and Action Items 2025
| # | Action Item |
|---|---|
| 1 | Audit every CPT 76800 claim in your queue before December 12, 2025. Pull claims billed under CPT 76800 for the past six months. Flag any that don't map to neonatal/infant indications or intraoperative use. Those are your denial risk cases. |
| 2 | Update charge capture and order entry to gate CPT 76800 by patient age and clinical setting. Your billing team shouldn't have to catch this at claim submission. Build a hard stop or a prompt that flags CPT 76800 orders outside neonatal or intraoperative contexts. This is a workflow fix, not just a billing guidelines reminder. |
| 3 | Educate your anesthesiology and pain management teams now. These are the highest-risk specialties under this coverage policy. Providers using ultrasound guidance for epidurals, nerve blocks, and neuraxial procedures on Aetna members need to understand that Aetna will not reimburse CPT 76800 for those indications. If your pain management team bills CPT 623xx or 624xx series with an ultrasound guidance code, double-check whether that ultrasound is spinal in nature. |
| 4 | Strengthen documentation for covered neonatal cases. Aetna's covered list for newborns and infants is specific. Vague documentation like "spinal ultrasound for evaluation" won't survive a medical necessity review. The clinical note needs to reflect the exact indication — cord tethering evaluation, post-op retethering assessment, caudal regression spectrum, and so on. Map the diagnosis code to the clinical note language. |
| 5 | Flag SonixGPS cases immediately. If your anesthesia team uses the SonixGPS system, those claims are dead on arrival with Aetna under CPB 0628. Document this for your anesthesiologists and remove it from standard Aetna billing workflows. |
| 6 | Verify prior authorization requirements at the plan level. CPB 0628 doesn't spell out a blanket prior auth requirement, but individual Aetna plan designs may add one. Confirm for each Aetna product in your payer mix — HMO, PPO, and commercial vs. self-funded plans can differ. A prior authorization denial is still a claim denial. |
| 7 | Build a denial tracking category for CPT 76800 rejections. If you're not already separating spinal ultrasound denials in your denial management reports, start now. Post-December 12, 2025, you'll want clean data to assess whether your workflow changes are working. |
| Previous Version | Current Version |
|---|---|
| Coverage is considered experimental and investigational for all indications | Coverage is considered medically necessary when specific criteria are met |
| Prior authorization is not required | Prior authorization is required for initial treatment |
| Documentation must include clinical history | Documentation must include clinical history |
| Re-review every 24 months | Re-review every 12 months with updated clinical documentation |
CPT, HCPCS, and ICD-10 Codes for Spinal Ultrasound Under CPB 0628
Covered CPT Codes (When Selection Criteria Are Met)
| Code | Type | Description |
|---|---|---|
| 76800 | CPT | Ultrasound, spinal canal and contents |
Other CPT Codes Related to CPB 0628
These codes appear in the policy as related procedures. They are not independently covered by CPB 0628 but are clinically connected — particularly for anesthesiology and pain management teams who may combine these with spinal ultrasound.
| Code | Type | Description |
|---|---|---|
| 62320 | CPT | Injection(s), of diagnostic or therapeutic substance(s) (e.g., anesthetic, antispasmodic, opioid, steroid) — epidural or subarachnoid |
| 62321 | CPT | Injection(s), of diagnostic or therapeutic substance(s) — cervical or thoracic |
| 62322 | CPT | Injection(s), of diagnostic or therapeutic substance(s) — lumbar or sacral (caudal) |
| 62323 | CPT | Injection(s), of diagnostic or therapeutic substance(s) — lumbar or sacral with imaging guidance |
| 62324 | CPT | Injection(s), including indwelling catheter placement, continuous infusion or intermittent bolus |
| 62325 | CPT | Injection(s), including indwelling catheter placement — cervical or thoracic |
| 62326 | CPT | Injection(s), including indwelling catheter placement — lumbar or sacral |
| 62327 | CPT | Injection(s), including indwelling catheter placement — lumbar or sacral with imaging guidance |
| 64400 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64401 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64402 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64403 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64404 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64405 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64406 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64407 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64408 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64409 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64410 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64411 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64412 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64413 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64414 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64415 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64416 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64417 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64418 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64419 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64420 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64421 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64422 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64423 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64424 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64425 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64426 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64427 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64428 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64429 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64430 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64431 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64432 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64433 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64434 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64435 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64436 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64437 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64438 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64439 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64440 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64441 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64442 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64443 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64444 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64445 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64446 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64447 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64448 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64449 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64450 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64451 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64452 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64453 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64454 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64455 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64456 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64457 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64458 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64459 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64460 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64461 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64462 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64463 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64464 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64465 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64466 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64467 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64468 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64469 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
| 64470 | CPT | Introduction/injection of anesthetic agent (nerve block), diagnostic or therapeutic |
Note: The policy data includes 60 additional CPT codes in the 644xx and related series. The full code list is available at the source policy: CPB 0628 on PayerPolicy.
A note on the ICD-10 data: The policy document references 115 ICD-10-CM codes. The source data provided for this summary includes a partial set without individual code descriptions. Pull the full ICD-10 list directly from CPB 0628 on PayerPolicy for your charge capture and prior auth workflows.
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