How to appeal a Premera Blue Cross stroke & neuro rehab 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.

Premera Blue Cross-specific note: BCBS licensee for Washington and Alaska (~2.4M members). Express Scripts PBM. WA OIC oversight. WA has strong mental health parity enforcement and surprise-billing protections that pre-date federal NSA.

What Premera Blue Cross's policy requires for stroke & neuro rehab

Cited policy: BCBS Evidence Positioning System: Robot-Assisted Walking Therapy for Stroke

Most BCBS plans cover post-2018. Lokomat / Indego / EksoNR / NAVIO. Documented gait deficit + IRF or outpatient setting + supervised by trained therapist.

How Premera Blue Cross denies stroke & neuro rehab — and how to counter it

Where Premera Blue Cross pushes back: 1) Experimental; 2) No superior outcome vs conventional gait training; 3) Insufficient evidence.

Counter-arguments that hold up: Lokomat FDA-cleared 2002 — NOT experimental. Indego FDA 2016. EksoNR FDA Apr 2020 stroke indication. LEAPS Duncan NEJM 2011 randomized locomotor training. APTA Clinical Practice Guideline (Hornby JNPT 2020) endorses BWS treadmill training. ASIA + ACRM endorse. Document gait assessments (10MWT + 6MWT) + chronic-phase rationale + therapist robot certification.

What Premera Blue Cross typically denies for stroke & neuro rehab

Across Premera Blue Cross's commercial and Medicare books, denials cluster around a small number of patterns. For stroke & neuro rehab, expect:

• WA-specific mental health parity violations
• Step therapy via Express Scripts
• Out-of-network reductions
• Specialty drug prior auth

Treatments most often denied in this category

These are the stroke & neuro rehab treatments most often flagged for prior auth, step therapy, or medical necessity review:

• Acute thrombectomy / tPA
• IRF admission
• LTACH
• SNF sub-acute
• Outpatient PT/OT/SLP
• CIMT

How to submit the appeal to Premera Blue Cross

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 Premera Blue Cross cited in the denial.
3. File the appeal through Premera Blue Cross's portal (members: https://www.premera.com ; providers: https://www.premera.com/wa/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 WA, 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 Premera Blue Cross's prior-authorization criteria by drug: Premera Blue Cross PA criteria on ApprovalHelp.