How to appeal a Highmark solid-organ transplant denial

The framework that applies to your appeal

Federal law gives you the right to a full and fair internal appeal, then an external review by an independent third party.

Highmark-specific note: Operates BCBS in PA (western), WV, DE, NY (western). Owns Allegheny Health Network.

What Highmark's policy requires for solid-organ transplant

Cited policy: BCBS Rituximab for Antibody-Mediated Rejection / Desensitization (Off-Label Transplant)

Off-label transplant indication. Coverage for biopsy-proven active antibody-mediated rejection (Banff pAMR ≥2) refractory to plasmapheresis + IVIG, OR pre-transplant desensitization in highly-sensitized candidates with documented DSA + positive crossmatch. 375 mg/m² weekly x 1-4 doses typical.

How Highmark denies solid-organ transplant — and how to counter it

Where Highmark pushes back: 1) Off-label / experimental in transplant; 2) AMR treatment with rituximab not proven (RITUX-ERAH neutral); 3) Plasmapheresis + IVIG sufficient.

Counter-arguments that hold up: Rituximab is off-label in transplant but supported as standard of care by AST community-of-practice + Banff 2022 (Loupy AJT 2022) for AMR refractory or in combination with TPE + IVIG. Vo NEJM 2008 — IVIG + rituximab desensitization successful in highly-sensitized candidates. Montgomery NEJM 2011 — survival benefit for desensitization + transplant vs continued dialysis in HLA-incompatible. RITUX-ERAH (Sautenet Transplantation 2016) was underpowered (38 patients) and not generalizable to severe AMR. KDIGO 2009 + AST AMR consensus endorse TPE + IVIG +/- rituximab for biopsy-proven AMR. Submit Banff biopsy report + DSA MFI trajectory + C4d staining + microvascular-inflammation g+ptc score.

What Highmark typically denies for solid-organ transplant

Across Highmark's commercial and Medicare books, denials cluster around a small number of patterns. For solid-organ transplant, expect:

• Prior auth on biologics
• PA on advanced imaging
• OON balance bills

Treatments most often denied in this category

These are the solid-organ transplant treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Basiliximab (Simulect)
• rATG (Thymoglobulin)
• Alemtuzumab (Campath)
• Tacrolimus IR (Prograf)
• Tacrolimus ER (Astagraf-XL)
• Tacrolimus ER (Envarsus-XR)

How to submit the appeal to Highmark

1. Read the denial letter — note the exact denial reason code and the appeal deadline (180 days from the date on the letter).
2. Gather supporting documentation: physician letter of medical necessity, relevant clinical notes, peer-reviewed citations supporting the treatment for your indication, and the policy or coverage document Highmark cited in the denial.
3. File the appeal through Highmark's portal (members: https://www.highmark.com ; providers: https://www.highmark.com/provider). Standard decision returns within 30 days; expedited urgent appeals return within 72 hours.
4. If denied again, request external review by an independent reviewer within 4 months of the final internal denial. In PA, the state insurance department coordinates external review for fully-insured plans; ERISA self-funded plans use a federal external review through DOL/EBSA.

Clinician or prior-auth team handling this on the practice side? See Highmark's prior-authorization criteria by drug: Highmark PA criteria on ApprovalHelp.