Pancreas Transplantation Alone (PTA) and Islet Cell Transplantation — CPB 0601 | AETNA Coverage Update

Aetna modified CPB 0601 covering pancreas transplantation alone (PTA) and islet cell transplantation, effective September 26, 2025. Here's what billing teams need to know before submitting claims.

Aetna, a CVS Health company updated its pancreas transplantation alone and islet cell transplantation coverage policy under CPB 0601 Aetna system. The revision affects nine covered CPT codes — including 0584T, 0585T, 0586T, 48160, 48550, 48551, 48552, 48554, and 48556 — plus four HCPCS codes with specific coverage restrictions. If your transplant program bills these procedures for Aetna members, the effective date of September 26, 2025 is your line in the sand.

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Quick-Reference Table

Field	Detail Copy
Payer	Aetna, a CVS Health company
Policy	Pancreas Transplantation Alone (PTA) and Islet Cell Transplantation
Policy Code	CPB 0601
Change Type	Modified
Effective Date	September 26, 2025
Impact Level	High
Specialties Affected	Transplant surgery, endocrinology, interventional radiology, general surgery
Key Action	Audit charge capture for CPT 0584T–0586T and 48554 against updated medical necessity criteria before submitting post-September 26 claims

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Aetna Pancreas Transplantation and Islet Cell Transplantation Coverage Criteria and Medical Necessity Requirements 2025

Aetna's coverage policy under CPB 0601 covers pancreas transplantation alone and islet cell transplantation as medically necessary when selection criteria are met. That phrase — "when criteria are met" — is doing a lot of work here. It means every claim you submit needs documented support for the specific indication. Reviewers will check. Claims without it will deny.

The policy covers pancreatic allograft transplantation (CPT 48554), donor pancreatectomy including cold preservation (CPT 48550), and backbench preparation and reconstruction of cadaver donor pancreas allograft (CPT 48551 and 48552). These codes cover the full surgical workflow from procurement through implantation. Make sure your facility is capturing all four — not just the transplant itself.

For islet cell transplantation specifically, three CPT codes cover the procedure depending on approach: 0584T for the standard approach including portal vein catheterization and infusion, 0585T for the laparoscopic approach, and 0586T for the open approach. These replaced older HCPCS codes for the same procedures — and that distinction matters for reimbursement.

CPT 48160 — pancreatectomy, total or subtotal, with autologous transplantation of pancreatic islet cells — also falls under covered codes when criteria are met. This code is most relevant for chronic pancreatitis patients who undergo total pancreatectomy with islet autotransplantation (TP-IAT). Confirm your CDI team is capturing the underlying condition with the right ICD-10 pairing.

Prior authorization is standard for transplant procedures at this complexity level. Don't submit a claim for any of these codes without confirming prior auth is in place. A missed prior auth on a transplant case is not a small denial — it's a significant revenue risk.

The diagnosis codes supporting medical necessity span a wide range. Type 1 diabetes (E10.10–E10.9), Type 2 diabetes (E11.0–E11.9), hypoglycemia (E16.0–E16.2), postprocedural hypoinsulinemia (E89.1), and acidosis (E87.20–E87.29) all appear in the covered ICD-10 list. So do cardiovascular comorbidities — acute MI (I21.01–I21.A9), hypertension (I10, I15.0–I15.9), and peripheral vascular disease (I73.0–I73.4). These aren't incidental diagnoses. They reflect the clinical complexity that justifies transplantation in the first place.

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Aetna Islet Cell Transplantation Exclusions and Non-Covered Indications

This is where the policy gets important for revenue cycle teams. Three HCPCS codes — G0341, G0342, and G0343 — are explicitly listed as not covered for indications in this policy.

G0341 covers percutaneous islet cell transplant including portal vein catheterization and infusion. G0342 covers laparoscopic islet cell transplant with the same infusion components. G0343 covers laparotomy for islet cell transplant. All three are in the "HCPCS codes not covered" group under CPB 0601.

Here's the billing issue: these HCPCS codes describe essentially the same procedures as CPT 0584T, 0585T, and 0586T. The difference is the code set. Aetna is telling you to bill the CPT codes, not the HCPCS codes. If your charge capture defaults to G0341–G0343 for islet cell procedures, you will get a claim denial. Fix that mapping before September 26, 2025.

HCPCS S2102 — islet cell tissue transplant from pancreas, allogeneic — appears in the policy under "Donislecel-jujn (Lantidra) — no specific code." Lantidra is the FDA-approved allogeneic islet cell therapy. The policy flags that there's no dedicated code yet for this product. If your program uses Lantidra, talk to your compliance officer before billing — using S2102 as a workaround carries risk without explicit payer guidance.

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Coverage Indications at a Glance

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Aetna Pancreas Transplantation Billing Guidelines and Action Items 2025

These are the steps your billing team should take now. Don't wait until a claim denies.

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If your transplant program has high Aetna volume or you're uncertain how this policy maps to your specific patient mix, loop in your compliance officer before the effective date of September 26, 2025.

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CPT, HCPCS, and ICD-10 Codes for Pancreas Transplantation and Islet Cell Transplantation Under CPB 0601

Covered CPT Codes — When Selection Criteria Are Met

HCPCS Codes — Not Covered for Indications in CPB 0601

Code	Type	Description	Reason Copy
G0341	HCPCS	Percutaneous islet cell transplant, includes portal vein catheterization and infusion	Not covered — use CPT 0584T instead
G0342	HCPCS	Laparoscopy for islet cell transplant, includes portal vein catheterization and infusion	Not covered — use CPT 0585T instead
G0343	HCPCS	Laparotomy for islet cell transplant, includes portal vein catheterization and infusion	Not covered — use CPT 0586T instead

HCPCS Code — No Specific Billing Code Designated

Code	Type	Description	Notes Copy
S2102	HCPCS	Islet cell tissue transplant from pancreas; allogeneic	Proxy code for Donislecel-jujn (Lantidra); no dedicated code assigned — consult compliance

Key ICD-10-CM Diagnosis Codes

Note: The full ICD-10 list under CPB 0601 includes 83 codes. The table above reflects the complete set provided in the policy data. Three additional ICD-10-CM codes are referenced in the source policy document — verify the full list at the source policy link below.

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