Aetna modified CPB 0741 for cardiovascular ultrafiltration, effective November 1, 2025. Here's what billing teams need to know before submitting claims under CPT 0692T.
Aetna, a CVS Health company, updated its cardiovascular ultrafiltration coverage policy under CPB 0741 Aetna system, clarifying medical necessity criteria for peripheral ultrafiltration and modified ultrafiltration. The primary code in play is CPT 0692T (Therapeutic ultrafiltration). If your facility bills this code for heart failure patients — or if you're doing pediatric cardiac surgery — this update tightens the criteria you need to document before a claim goes out.
Quick-Reference Table
| Field | Detail |
|---|---|
| Payer | Aetna, a CVS Health company |
| Policy | Cardiovascular Ultrafiltration — CPB 0741 |
| Policy Code | CPB 0741 |
| Change Type | Modified |
| Effective Date | November 1, 2025 |
| Impact Level | High |
| Specialties Affected | Cardiology, Cardiac Surgery, Pediatric Cardiac Surgery, Hospital Inpatient Billing, Nephrology |
| Key Action | Audit active CPT 0692T claims for diuretic resistance documentation before submitting against ICD-10 codes I50.20–I50.9 |
Aetna Cardiovascular Ultrafiltration Coverage Criteria and Medical Necessity Requirements 2025
Aetna's coverage policy draws a hard line between two procedures: peripheral ultrafiltration and modified ultrafiltration. They're billed differently, they apply to different patient populations, and Aetna's medical necessity criteria for each are specific.
Peripheral Ultrafiltration for Acute Decompensated Heart Failure
Aetna covers peripheral ultrafiltration — billed under CPT 0692T — for inpatient members with acutely decompensated congestive heart failure (CHF). Two conditions must both be present. The patient must have dyspnea at rest or with minimal activity, and they must have confirmed diuretic resistance.
Diuretic resistance is the phrase that will determine your claim outcome. Aetna defines it as dose escalation beyond the patient's previously recognized dose ceiling, or a dose approaching the maximum recommended daily dose without incremental improvement in diuresis. Document this precisely in the medical record before billing. Vague language like "diuretic failure" is not the same as documented dose escalation with no response.
The ICD-10 codes that apply here are I50.20–I50.9 (congestive heart failure). Get the specific CHF type coded correctly. Unspecified heart failure (I50.9) is acceptable but a more specific code — like I50.20 for unspecified systolic CHF — strengthens the claim and reduces claim denial risk.
Prior authorization requirements for CPT 0692T under this policy should be verified directly with Aetna before admission when possible. Inpatient billing teams should confirm auth before the procedure, not after. Reimbursement under this code requires both the clinical criteria and correct diagnosis alignment.
Modified Ultrafiltration for Cardiopulmonary Bypass
Aetna considers modified ultrafiltration medically necessary for cardiopulmonary bypass in pediatric (under 18 years) and neonatal cardiac surgery. This is a narrower population but a high-acuity one. The coverage policy is straightforward here: patient age and the cardiopulmonary bypass setting are the gatekeepers.
Billing for modified ultrafiltration in adult cardiac surgery doesn't fit this coverage window. The CPT range 33010–37790 (Cardiovascular System) covers the broader set of procedures related to this policy, but the modified ultrafiltration medical necessity criteria are age-restricted.
Aetna Cardiovascular Ultrafiltration Exclusions and Non-Covered Indications
This is where the policy earns its complexity. Aetna marks three categories as experimental, investigational, or unproven. These won't get paid, and submitting claims without understanding these exclusions is how you generate avoidable denials.
Intermittent or scheduled repetitive peripheral ultrafiltration in non-acutely decompensated patients is not covered. The coverage policy is built for acute management. If the patient isn't hospitalized with active decompensation, CPT 0692T will not be covered. Outpatient or maintenance ultrafiltration sessions fall squarely in this bucket.
Peritoneal ultrafiltration as adjunctive therapy in end-stage heart failure (ICD-10 I50.84) is experimental. This is distinct from peritoneal dialysis, which falls under CPB 0541. If your team has been billing peritoneal ultrafiltration for end-stage heart failure patients, stop and review those claims immediately.
Ultrafiltration for cardio-renal syndrome (ICD-10 I13.0, I13.1, I13.2) is also experimental unless the patient independently meets the acute decompensated heart failure criteria above. Cardio-renal syndrome alone doesn't qualify. This is a real gray zone — patients with both conditions exist, and the documentation has to clearly establish the CHF-specific criteria, not just the combined diagnosis.
The real issue here is that I13.x codes appear in the policy as ICD-10 anchors, which means Aetna is specifically flagging cardio-renal syndrome as a trigger for scrutiny. Expect medical review on any CPT 0692T claim paired with an I13.x primary diagnosis.
Coverage Indications at a Glance
| Indication | Status | Relevant Codes | Notes |
|---|---|---|---|
| Peripheral ultrafiltration — acute decompensated CHF with diuretic resistance, inpatient | Covered | CPT 0692T; ICD-10 I50.20–I50.9 | Both dyspnea and documented diuretic resistance required; verify prior auth |
| Modified ultrafiltration — cardiopulmonary bypass, pediatric/neonatal cardiac surgery | Covered | CPT 33010–37790 | Restricted to patients under 18 years of age |
| Intermittent peripheral ultrafiltration — non-acutely decompensated patients | Experimental | CPT 0692T | Outpatient or maintenance sessions not covered |
| Scheduled repetitive peripheral ultrafiltration | Experimental | CPT 0692T | No coverage regardless of diagnosis |
| Peripheral ultrafiltration — all other indications not listed above | Experimental | CPT 0692T | No covered pathway outside of acute CHF criteria |
| Peritoneal ultrafiltration — adjunctive therapy in end-stage heart failure | Experimental | ICD-10 I50.84 | Refer to CPB 0541 for dialysis-related billing |
| Ultrafiltration for cardio-renal syndrome — without meeting CHF criteria | Experimental | ICD-10 I13.0, I13.1, I13.2 | Covered only if patient independently meets acute CHF criteria |
Aetna Cardiovascular Ultrafiltration Billing Guidelines and Action Items 2025
The effective date is November 1, 2025. If you're submitting CPT 0692T claims after that date, these steps apply now.
| # | Action Item |
|---|---|
| 1 | Audit your CPT 0692T charge capture immediately. Pull all claims submitted or queued after November 1, 2025 that include CPT 0692T. Check the paired ICD-10 codes. Claims with I13.x as the primary diagnosis — without clear CHF decompensation documentation — are your highest denial risk. |
| 2 | Build a documentation checklist for diuretic resistance. Work with your cardiology and hospitalist teams to standardize chart notes that capture the specific dose escalation language Aetna requires. "Diuretic resistance" in a note is not enough. The documentation needs to show the dose ceiling reached and the lack of incremental diuresis response. |
| 3 | Separate your peripheral and modified ultrafiltration billing workflows. Peripheral ultrafiltration (CPT 0692T) for CHF and modified ultrafiltration for pediatric cardiac surgery are two different clinical and billing contexts. If your charge capture system doesn't distinguish them, fix that before you submit another claim. |
| 4 | Flag any CPT 0692T claims with ICD-10 I50.84 (end-stage heart failure) for clinical review. Peritoneal ultrafiltration billed for end-stage heart failure is experimental under this policy. If your facility offers this service, confirm the billing pathway with your compliance officer before November 1, 2025. |
| 5 | Verify prior authorization requirements for CPT 0692T with Aetna directly. CPB 0741 doesn't enumerate the prior auth process, but ultrafiltration — as a procedure-intensive inpatient service — typically triggers auth review. Confirm requirements plan by plan and document the auth number before the procedure. |
| 6 | Update your denial management protocol for I13.x + CPT 0692T combinations. If Aetna denies a claim for cardio-renal syndrome, the appeal path requires proving the patient independently met the acute CHF decompensation criteria. Build that documentation trail at the point of care, not after denial. Talk to your compliance officer if your patient mix includes significant cardio-renal syndrome volume — the overlap with CHF criteria is real, but the documentation bar is high. |
| 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 Cardiovascular Ultrafiltration Under CPB 0741
Covered CPT Codes (When Medical Necessity Criteria Are Met)
| Code | Type | Description |
|---|---|---|
| 0692T | CPT | Therapeutic ultrafiltration — covered for acute decompensated CHF with diuretic resistance (inpatient) and modified ultrafiltration for pediatric/neonatal cardiopulmonary bypass. Not covered for intermittent peripheral ultrafiltration. |
Other CPT Codes Related to CPB 0741
| Code | Type | Description |
|---|---|---|
| 33010–37790 | CPT Range | Cardiovascular System — broader procedure range related to this policy, including modified ultrafiltration in cardiopulmonary bypass settings |
Key ICD-10-CM Diagnosis Codes
| Code | Description | Coverage Context |
|---|---|---|
| I13.0 | Hypertensive heart and chronic kidney disease (cardio-renal syndrome) | Experimental for ultrafiltration unless CHF acute decompensation criteria are independently met |
| I13.1 | Hypertensive heart and chronic kidney disease (cardio-renal syndrome) | Experimental for ultrafiltration unless CHF acute decompensation criteria are independently met |
| I13.2 | Hypertensive heart and chronic kidney disease (cardio-renal syndrome) | Experimental for ultrafiltration unless CHF acute decompensation criteria are independently met |
| I50.20–I50.9 | Congestive heart failure | Primary covered diagnosis for peripheral ultrafiltration under CPT 0692T |
| I50.84 | End-stage heart failure | Peritoneal ultrafiltration as adjunctive therapy is experimental under this code |
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