TL;DR: Aetna modified CPB 0746 on November 27, 2025, classifying all ultrasound therapy for wound healing — including CPT 97610 — as experimental, investigational, or unproven. If your team bills this code to Aetna, expect denial.
Aetna's ultrasound wound care coverage policy draws a hard line: no coverage, no exceptions, no path to medical necessity approval for ultrasound-based wound therapy. CPB 0746 lists CPT 97610 (low-frequency, non-contact, non-thermal ultrasound) as explicitly not covered for wound healing indications across a broad range of chronic wound diagnoses — 272 ICD-10-CM codes spanning vascular ulcers, cellulitis, abscess, and more. If you're running any of the named systems — MIST Therapy, Qoustic Wound Therapy, Sonoca 180/185, or the FAST procedure — this policy shuts the door on reimbursement for Aetna members.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Aetna |
| Policy | Ultrasound Therapy for Wound Healing |
| Policy Code | CPB 0746 |
| Change Type | Modified |
| Effective Date | November 27, 2025 |
| Impact Level | High |
| Specialties Affected | Not specified in source policy — inferred: wound care, vascular surgery, podiatry, general surgery, dermatology |
| Key Action | Remove CPT 97610 from Aetna charge capture for wound healing indications immediately |
Aetna Ultrasound Wound Therapy Coverage Criteria and Medical Necessity Requirements 2025
There are no coverage criteria for ultrasound wound therapy under this policy. That's the point.
Aetna's CPB 0746 does not establish a set of conditions under which CPT 97610 becomes payable. It classifies the entire modality as experimental, investigational, or unproven — which means there is no clinical scenario, no wound type, and no documentation strategy that changes the outcome. The claim denies.
The Aetna ultrasound wound healing coverage policy applies this exclusion to high-frequency ultrasound and non-contact low-frequency ultrasound devices alike. Both categories land in the same bucket. If your wound care program uses any ultrasound-based therapy for healing or chronic wound pain reduction, medical necessity arguments won't save those claims under this payer.
The effective date of November 27, 2025 is past. This policy is active now.
Aetna Ultrasound Wound Therapy Exclusions and Non-Covered Indications
This section is the entire policy. Every indication is excluded.
Aetna considers the following experimental, investigational, or unproven for wound healing:
| # | Excluded Procedure |
|---|---|
| 1 | High-frequency ultrasound for wound healing |
| 2 | Non-contact low-frequency ultrasound (NLFU) for wound healing |
| 3 | Ultrasound therapy for chronic wound pain reduction |
The policy names specific devices to remove any ambiguity about scope:
| # | Excluded Procedure |
|---|---|
| 1 | MIST Therapy System — a widely used NLFU device in hospital-based wound care |
| 2 | Qoustic Wound Therapy System — acoustic pressure wound therapy |
| 3 | Sonoca 180/185 Wound Care System — ultrasonic debridement platform |
| 4 | Focused Aspiration of Soft Tissue (FAST) procedure — ultrasound-guided soft tissue aspiration |
If your wound care department uses any of these systems and bills Aetna for those services using CPT 97610, every one of those claims is denied under this coverage policy. That's not a documentation problem — it's a policy problem. The fix is either to stop billing Aetna for these services or to shift the conversation with your clinical team about which modalities are covered.
The real issue here is that wound care programs often mix covered and non-covered modalities — negative pressure wound therapy, debridement, hyperbaric oxygen — with ultrasound therapy in the same episode of care. Aetna denying CPT 97610 doesn't affect those other services, but your billing team needs clean separation in the charge capture to avoid collateral denials or bundling issues.
Coverage Indications at a Glance
| Indication | Coverage Status | Relevant Codes | Notes |
|---|---|---|---|
| Wound healing via high-frequency ultrasound | Not Covered / Experimental | CPT 97610 | Classified as unproven — no coverage path |
| Wound healing via non-contact low-frequency ultrasound (NLFU) | Not Covered / Experimental | CPT 97610 | Includes MIST Therapy, Qoustic systems |
| Chronic wound pain reduction via ultrasound | Not Covered / Experimental | CPT 97610 | Explicit exclusion in CPB 0746 |
| FAST procedure for soft tissue | Not Covered / Experimental | CPT 97610 | Named device exclusion |
| Sonoca 180/185 wound care | Not Covered / Experimental | CPT 97610 | Named device exclusion |
| Atherosclerotic lower extremity ulcers (I70.231–I70.25) | Diagnosis Present, Service Not Covered | CPT 97610 | 272 ICD-10-CM codes in scope; none unlock coverage |
| Varicose vein ulcers (I83.1x series) | Diagnosis Present, Service Not Covered | CPT 97610 | Standard venous ulcer wound care — covered modalities apply instead |
| Cellulitis and abscess (L02.xx series) | Diagnosis Present, Service Not Covered | CPT 97610 | No ultrasound wound therapy coverage regardless of wound type |
Aetna Ultrasound Wound Therapy Billing Guidelines and Action Items 2025
This policy is live. These steps aren't future-facing — they're overdue.
| # | Action Item |
|---|---|
| 1 | Pull CPT 97610 from your Aetna charge capture now. The effective date of November 27, 2025 has passed. Any claims for CPT 97610 with Aetna-insured patients going out today are denials waiting to happen. Work with your charge capture team to flag or suppress this code for Aetna payers. |
| 2 | Audit claims submitted since November 27, 2025. If your team billed CPT 97610 to Aetna after the effective date, pull those claims. Determine what's been paid, what's pending, and what's already denied. Overpayments become a liability if Aetna recoups — get ahead of it. |
| 3 | Note: This policy does not address prior authorization. The following reflects general billing practice considerations. For services classified as experimental or unproven, no PA pathway typically exists — requesting prior auth for CPT 97610 under Aetna wastes staff time and creates a false sense of coverage security. If your team has been submitting PA requests for this service, talk to your billing consultant about whether that process makes sense given this policy classification. |
| 4 | Check your contracts for any Aetna product carve-outs. Some Aetna plan types — particularly self-funded employer plans — can override standard Clinical Policy Bulletins. If you have ASO or self-funded Aetna accounts, pull the specific benefit documents. CPB 0746 is the default, but individual plan language controls. If you're unsure about your plan mix, loop in your billing consultant before assuming a blanket exclusion. |
| 5 | Review related policy CPB 0372 for alternative wound therapy coverage. Aetna cross-references CPB 0372, which covers Noncontact Normothermic/Nonthermal Wound Therapy. If your wound care program uses devices that fall under that policy instead of CPT 97610, there may be a covered path. Don't assume — read CPB 0372 against your device and documentation before billing. |
| 6 | Communicate with your wound care clinicians. The billing team can suppress a code, but clinicians need to know why. If the MIST Therapy or Sonoca system is in active use, the clinical team should understand that Aetna reimbursement for those services is gone. This is a clinical program decision, not just a billing adjustment. |
| 7 | Document your denial response process. When denials come in for post-November 27, 2025 claims, you need a consistent response. Appeals based on medical necessity won't succeed here — the policy classifies the modality as unproven regardless of the patient's clinical picture. Your denial management team should recognize CPT 97610 + Aetna + wound healing as a write-off scenario, not an appeal opportunity. |
| 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 Ultrasound Wound Therapy Under CPB 0746
Not Covered / Experimental CPT Codes
| Code | Type | Description | Reason |
|---|---|---|---|
| 97610 | CPT | Low frequency, non-contact, non-thermal ultrasound, including topical application(s), when performed | Not covered for indications listed in CPB 0746 — classified as experimental, investigational, or unproven |
Key ICD-10-CM Diagnosis Codes
These are the diagnosis codes Aetna maps to this policy. None of them unlock coverage for CPT 97610. They define the scope of indications the policy explicitly addresses.
Vascular and Arterial Ulcers
| Code | Description |
|---|---|
| I70.231–I70.25 | Atherosclerosis of the lower extremities with ulceration |
| I70.261–I70.269 | Atherosclerosis of the lower extremities with gangrene |
Venous / Varicose Vein Ulcers
| Code | Description |
|---|---|
| I83.1, I83.10–I83.19 | Varicose veins of lower extremities with ulcer |
| I83.2, I83.20–I83.29 | Varicose veins of lower extremities with ulcer |
| I83.3–I83.9 | Varicose veins of lower extremities with ulcer |
Cellulitis and Abscess
| Code | Description |
|---|---|
| L02.01 | Other cellulitis and abscess |
| L02.11 | Other cellulitis and abscess |
| L02.211–L02.219 | Other cellulitis and abscess |
| L02.31 | Other cellulitis and abscess |
| L02.411–L02.419 | Other cellulitis and abscess |
| L02.511–L02.519 | Other cellulitis and abscess |
| L02.611–L02.619 | Other cellulitis and abscess |
| L02.811–L02.819 | Other cellulitis and abscess |
The full policy lists 272 ICD-10-CM codes. The pattern across all of them is consistent: Aetna has mapped these chronic wound and ulcer diagnoses to CPB 0746 to make clear that no wound presentation — arterial, venous, infectious, or otherwise — creates a covered indication for ultrasound wound therapy billing.
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