Aetna modified CPB 0050 for varicose vein treatment, effective September 26, 2025. Here's what billing teams need to know.
Aetna, a CVS Health company, updated Clinical Policy Bulletin 0050, its varicose veins coverage policy, with a September 26, 2025 effective date. This policy covers a broad set of procedures—from sclerotherapy (CPT 36465, 36466, 36470, 36471) and endovenous ablation (CPT 36475, 36476, 36478, 36479) to surgical stripping and stab phlebectomy (CPT 37765, 37766)—across 40 CPT codes and 21 HCPCS codes. Varicose vein billing is already a high-denial specialty, and any modification to CPB 0050 Aetna deserves immediate review by your revenue cycle team.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Aetna, a CVS Health company |
| Policy | Varicose Veins – CPB 0050 |
| Policy Code | CPB 0050 |
| Change Type | Modified |
| Effective Date | September 26, 2025 |
| Impact Level | High |
| Specialties Affected | Vascular surgery, interventional radiology, phlebology, general surgery |
| Key Action | Audit charge capture for CPT 36465–36483 and surgical codes 37700–37785 against updated selection criteria before billing September 26, 2025 dates of service |
Aetna Varicose Vein Coverage Criteria and Medical Necessity Requirements 2025
The Aetna varicose veins coverage policy under CPB 0050 divides procedures into two clear buckets: covered when selection criteria are met, and not covered (experimental or investigational). Twenty covered CPT codes fall into the first bucket. They include the full range of varicose vein interventions your practice likely performs.
Medical necessity drives every coverage decision here. Aetna requires clinical documentation that supports the specific procedure billed—and with 40 CPT codes in scope, the documentation burden is real. Sclerotherapy codes (36470 for a single incompetent vein, 36471 for multiple incompetent veins on the same leg) require that the vein treated is not a telangiectasia. If you're billing for telangiectasia (spider vein) injections, that's CPT 36468, which falls into the not-covered group.
Endovenous ablation splits across two technology types. Radiofrequency ablation uses CPT 36475 (first vein) and add-on 36476 (each additional vein, separate access site). Laser ablation uses CPT 36478 and add-on 36479. Both sets are covered when selection criteria are met. The newer chemical adhesive ablation codes—36482 and 36483—land in the not-covered group. Same procedure concept, different technology, different coverage status. That distinction will cause claim denials if your coders aren't watching it closely.
Prior authorization is standard for most vascular procedures under Aetna. Confirm your prior auth workflow covers the specific CPT code being requested, not just the general procedure category. Submitting a prior auth for "endovenous ablation" without specifying the modality (thermal vs. chemical) is a fast path to a mismatch denial.
Surgical stripping codes—37700, 37718, 37722, 37735, 37760, 37761, 37780, and 37785—are covered when selection criteria are met. So are stab phlebectomy codes 37765 and 37766, and subfascial endoscopic perforator surgery (SEPS) under CPT 37500. These are the higher-acuity procedures. Expect Aetna to scrutinize medical necessity documentation hard for these claims. Conservative treatment failure documentation is typically required before surgical intervention is approved.
Foam sclerotherapy with ultrasound guidance—CPT 36465 (single vein) and 36466 (multiple veins)—is covered when criteria are met, as is echosclerotherapy under HCPCS S2202. These are the codes most likely to be confused with excluded services, so make sure your coders know the difference between covered foam sclerotherapy and excluded procedures like mechanochemical ablation (36482, 36483).
Aetna Varicose Vein Exclusions and Non-Covered Indications
Several codes in this policy are explicitly excluded. The not-covered group is labeled "Polymorphism genotyping of matrix metalloproteinases genes" in the policy data—which is a confusing label for what is actually a list of excluded vein treatment procedures. Don't let that label distract you. These are real exclusions your billing team needs to know.
The excluded CPT codes are: 36468 (spider vein sclerotherapy), 36473 and 36474 (mechanochemical endovenous ablation, first and second/subsequent veins), 36482 and 36483 (cyanoacrylate adhesive endovenous ablation), 37204 (transcatheter occlusion/embolization), 37241 and 37244 (vascular embolization), 75894 (transcatheter embolization, radiological supervision and interpretation), 76942 (ultrasonic guidance for needle placement), and 76998 (intraoperative ultrasonic guidance).
CPT 36011 (selective catheter placement, venous system) is also in the not-covered group.
The real issue here: mechanochemical ablation (MOCA) with codes 36473 and 36474, and cyanoacrylate adhesive closure with 36482 and 36483, are increasingly common procedures. They are explicitly not covered under this policy. If your practice has adopted these newer techniques, you're billing into a wall with Aetna patients. Make sure patients are informed before treatment, and document the conversation in the medical record.
Ultrasound guidance codes 76942 and 76998 are not covered when used solely to guide needle or introducer placement—the policy notes this explicitly for 76998. If you're bundling these with covered sclerotherapy or ablation codes, review your bundling logic. A separate claim for 76942 alongside a covered ablation code is likely to trigger a denial or audit.
Coverage Indications at a Glance
| Indication / Procedure | Coverage Status | Relevant CPT/HCPCS Codes | Notes |
|---|---|---|---|
| Foam sclerotherapy with ultrasound guidance | Covered (criteria met) | 36465, 36466 | Single vs. multiple vein distinction matters |
| Sclerotherapy, non-foam, incompetent veins | Covered (criteria met) | 36470, 36471 | Not telangiectasia |
| Radiofrequency endovenous ablation | Covered (criteria met) | 36475, +36476 | Add-on 36476 per additional vein |
| Laser endovenous ablation | Covered (criteria met) | 36478, +36479 | Add-on 36479 per additional vein |
| Echosclerotherapy | Covered (criteria met) | S2202 | HCPCS; confirm plan coverage |
| Subfascial endoscopic perforator surgery (SEPS) | Covered (criteria met) | 37500 | Higher acuity; strong documentation needed |
| Saphenous vein ligation and stripping | Covered (criteria met) | 37700, 37718, 37722, 37735, 37780 | Medical necessity documentation required |
| Perforator vein ligation | Covered (criteria met) | 37760, 37761 | Open and radical approaches |
| Stab phlebectomy | Covered (criteria met) | 37765, 37766, 37799 | 37799 for 1–9 incisions |
| Varicose vein cluster excision | Covered (criteria met) | 37785 | One leg per procedure |
| Spider vein (telangiectasia) sclerotherapy | Not Covered | 36468 | Cosmetic in most plans |
| Mechanochemical ablation (MOCA) | Not Covered | 36473, 36474 | Considered investigational |
| Cyanoacrylate adhesive closure | Not Covered | 36482, 36483 | Considered investigational |
| Transcatheter vascular embolization | Not Covered | 37204, 37241, 37244, 75894 | Not covered for varicose vein indication |
| Selective catheter placement, venous | Not Covered | 36011 | Not covered under this CPB |
| Ultrasonic guidance (needle/introducer only) | Not Covered | 76942, 76998 | Covered only when integral to covered procedure |
| Compression stockings | Related (not treatment) | A6530–A6549 | Conservative treatment documentation tool |
| Diagnostic venography | Related | 75820, 75822 | Covered separately; needed for medical necessity support |
| Duplex scan, extremity veins | Related | 93970, 93971 | Use to document medical necessity pre-procedure |
Aetna Varicose Vein Billing Guidelines and Action Items 2025
These are the steps your billing and coding team should take before processing claims with dates of service on or after September 26, 2025.
| # | Action Item |
|---|---|
| 1 | Update your charge capture to flag CPT 36473, 36474, 36482, and 36483 as non-covered under Aetna CPB 0050. If your system routes these to Aetna, it will deny. Add a hard stop or alert in your practice management system now. |
| 2 | Audit your encoder and fee schedule for the covered ablation codes. CPT 36475 and 36476 (radiofrequency) and 36478 and 36479 (laser) are covered—but only when selection criteria are met. Make sure your coders are distinguishing these from the non-covered chemical/adhesive codes before submitting. |
| 3 | Review your prior authorization workflow for all covered surgical codes. Codes 37500, 37700, 37718, 37722, 37735, 37760, 37761, 37780, and 37785 carry higher reimbursement and higher scrutiny. Confirm that your prior auth requests include the specific CPT code and documentation of conservative treatment failure (typically compression stocking use). |
| 4 | Stop billing CPT 76942 and 76998 as separate line items alongside varicose vein procedures. Aetna excludes these when used solely to guide needle or introducer placement. If ultrasound guidance is integral to the covered procedure (and already bundled in the primary code's descriptor), don't unbundle it. |
| 5 | Document compression stocking use (HCPCS A6530–A6549) in your records before submitting surgical claims. Aetna expects to see conservative treatment failure before approving most surgical interventions. The stocking codes themselves are listed as related codes—not covered procedures—but the documentation they support is what gets your surgical claims approved. |
| 6 | Run a look-back audit on claims submitted under CPT 36468 for Aetna patients. If you've billed spider vein injections and received payment, compare those against the updated policy language. Aetna may recoup payments if coverage criteria were not met. |
| 7 | Talk to your compliance officer before September 26, 2025 if your practice performs MOCA or cyanoacrylate procedures on Aetna patients. These are explicitly non-covered. If you're performing them without an ABN or patient financial responsibility discussion, you have exposure. Get that process documented now. |
| 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 Varicose Veins Under CPB 0050
Covered CPT Codes (When Selection Criteria Are Met)
| Code | Description |
|---|---|
| 36465 | Injection of non-compounded foam sclerosant with ultrasound compression maneuvers — single incompetent vein |
| 36466 | Injection of non-compounded foam sclerosant with ultrasound compression maneuvers — multiple incompetent veins |
| 36470 | Injection of sclerosant; single incompetent vein (other than telangiectasia) |
| 36471 | Injection of sclerosant; multiple incompetent veins, same leg |
| 36475 | Endovenous ablation therapy, radiofrequency, extremity — first vein |
| +36476 | Endovenous ablation therapy, radiofrequency — second and subsequent veins, separate access sites (add-on) |
| 36478 | Endovenous ablation therapy, laser, extremity — first vein |
| +36479 | Endovenous ablation therapy, laser — second and subsequent veins, separate access sites (add-on) |
| 37500 | Vascular endoscopy, surgical, with ligation of perforator veins, subfascial (SEPS) |
| 37700 | Ligation and division of long saphenous vein at saphenofemoral junction, or distal interruptions |
| 37718 | Ligation, division, and stripping, short saphenous vein |
| 37722 | Ligation, division, and stripping, long saphenous veins from saphenofemoral junction to knee |
| 37735 | Ligation, division, and complete stripping of long or short saphenous veins with radical excision |
| 37760 | Ligation of perforator veins, subfascial, radical (Linton type), including skin graft when performed |
| 37761 | Ligation of perforator vein(s), subfascial, open, including ultrasound guidance when performed, one leg |
| 37765 | Stab phlebectomy of varicose veins, one extremity; 10–20 stab incisions |
| 37766 | Stab phlebectomy of varicose veins, one extremity; more than 20 incisions |
| 37780 | Ligation and division of short saphenous vein at saphenopopliteal junction |
| 37785 | Ligation, division, and/or excision of varicose vein cluster(s), one leg |
| 37799 | Unlisted vascular surgery procedure (reported for stab phlebectomy, 1–9 incisions) |
Covered HCPCS Codes (When Selection Criteria Are Met)
| Code | Description |
|---|---|
| S2202 | Echosclerotherapy |
Not Covered / Experimental CPT Codes
| Code | Description | Reason |
|---|---|---|
| 36011 | Selective catheter placement, venous system; first order branch | Not covered under CPB 0050 |
| 36468 | Single or multiple injections of sclerosing solutions, spider veins (telangiectasia); limb or trunk | Cosmetic/not medically necessary |
| 36473 | Endovenous ablation, mechanochemical, extremity — first vein | Investigational |
| 36474 | Endovenous ablation, mechanochemical, extremity — second and subsequent veins (add-on) | Investigational |
| 36482 | Endovenous ablation by cyanoacrylate adhesive, extremity — first vein | Investigational |
| 36483 | Endovenous ablation by cyanoacrylate adhesive, extremity — second and subsequent veins (add-on) | Investigational |
| 37204 | Transcatheter occlusion or embolization | Not covered for varicose vein indication |
| 37241 | Vascular embolization or occlusion, venous | Not covered for varicose vein indication |
| 37244 | Vascular embolization or occlusion, arteriovenous malformation or cutaneous vascular anomaly | Not covered for varicose vein indication |
| 75894 | Transcatheter therapy, embolization, radiological supervision and interpretation | Not covered for varicose vein indication |
| 76942 | Ultrasonic guidance for needle placement | Not covered when solely used for needle/introducer guidance |
| 76998 | Ultrasonic guidance, intraoperative | Not covered when used solely to guide needle or introducer |
Other CPT Codes Related to CPB 0050 (Diagnostic / Supporting)
| Code | Description |
|---|---|
| 37252 | Intravascular ultrasound, noncoronary vessel, during diagnostic evaluation or therapeutic intervention |
| 75820 | Venography, extremity, unilateral, radiological supervision and interpretation |
| 75822 | Venography, extremity, bilateral, radiological supervision and interpretation |
| 93922 | Limited bilateral non-invasive physiologic studies, lower extremity arteries |
| 93923 | Complete bilateral non-invasive physiologic studies, lower extremity arteries, 3 or more levels |
| 93924 | Non-invasive physiologic studies, lower extremity arteries, at rest and following treadmill stress |
| 93970 | Duplex scan of extremity veins, complete bilateral study |
| 93971 | Duplex scan of extremity veins, unilateral or limited study |
Compression Stocking HCPCS Codes (Related — Not a Covered Treatment)
| Code | Description |
|---|---|
| A6530–A6549 | Compression stockings, various configurations and compression levels |
Key ICD-10-CM Diagnosis Codes
| Code | Description |
|---|---|
| I80.0 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities |
| I80.1 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities |
| I80.2 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities |
| I80.3 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities |
| I82.401–I82.415 | Acute embolism and thrombosis of deep veins of lower extremity (multiple specificity codes) |
Note: CPB 0050 includes 335 ICD-10-CM codes in total. The full list—covering phlebitis, thrombophlebitis, DVT, and varicose vein manifestations—is available in the full policy document. Build your claim edits against the complete code set, not just this sample.
Get the Full Picture for CPT 36465
Track this policy across versions, search 1,500+ policies by CPT code, and get real-time alerts when any payer changes coverage.