← Back to list
Thermal Perfusion Probe for Monitoring Regional Cerebral Blood Flow (CPB 0703, reviewed 2026-10-15)
Effective date
Not stated in the notice
Identified
Oct 21, 2026
Summary
Aetna's clinical policy bulletin 0703 treats thermal perfusion probes, which continuously measure regional cerebral blood flow after head injury, subarachnoid hemorrhage or neurosurgery, as experimental, investigational or unproven. It lists the diagnosis codes for neurological and cerebrovascular conditions that are not covered for this use, along with related CPT 0042T. The source is dated October 15, 2026 and states no effective date for a change, so treat it as reference criteria to confirm against Aetna's current version.
Get alerts when payers change rules like this one
We check Aetna and other payers every day and email you when a change matches your specialty and state.
Get Aetna alertsPolicy Monitoring is free. No card required.
What to do
Action · 4 steps
01No effective date or deadline is stated in the source, so there is no dated obligation.
02Billing team: if the practice bills for thermal perfusion probe monitoring, check the claim for Aetna before submission, because the bulletin lists this use as experimental, investigational or unproven and not covered.
03Neurosurgery and neuro-critical care staff: tell providers that Aetna does not consider this monitoring covered for head injury, subarachnoid hemorrhage or post-neurosurgery use, so they can document the clinical need in the chart.
04Watch for the next revision of CPB 0703, and confirm current applicability with Aetna before changing charge entry or claim edits.
Codes mentioned
Z13.850Z13.858G93.7G93.89G93.9
Original notice
Thermal Perfusion Probe for Monitoring Regional Cerebral Blood Flow (CPB 0703, reviewed 2026-10-15)
aetna.com · Always check the source before changing claims.
Related changes
See all Aetna changes →Thermal Perfusion Probe for Monitoring Regional Cerebral Blood Flow (CPB 0703, reviewed 2025-11-24)LowNo effective date · Medical PolicyNeuropsychological and Psychological Testing (CPB 0158, reviewed 2026-03-20)MediumNo effective date · Behavioral HealthMusculoskeletal Assessment Systems (CPB 0212, reviewed 2026-03-25)MediumNo effective date · Medical PolicyInfrared Therapy (CPB 0604, reviewed 2026-09-09)MediumNo effective date · Medical PolicyBrowse every Aetna change in the policy list