How to appeal an Aetna stroke & neuro rehab denial
ACA §2719 + ERISA §503 · 180-day window · 30-day decision
To appeal an Aetna stroke & neuro rehab denial, file an internal appeal within 180 days of the date on the denial letter through Aetna's member or provider portal, under ACA §2719 + ERISA §503. Aetna returns standard decisions in 30 days; if it upholds the denial you can request an independent external review within 4 months.
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.
Aetna-specific note: Owned by CVS Health since 2018. CVS Caremark is the PBM. Aetna ASA administers self-funded ERISA plans. Meritain Health is Aetna's TPA brand.
What Aetna's policy requires for stroke & neuro rehab
Cited policy: Aetna Outpatient Therapy Visit Caps + Medical Necessity Reviews
Annual visit limits (commonly 20-60 PT/OT/SLP). Medical-necessity reviews triggered after threshold. Plateau triggers denial.
How Aetna denies stroke & neuro rehab — and how to counter it
Where Aetna pushes back: 1) Visit cap reached; 2) Plateaued progress; 3) Maintenance not covered.
Counter-arguments that hold up: For Medicare patients: therapy cap REPEALED by Bipartisan Budget Act 2018 §50202; KX modifier threshold $2,330 in 2024 (medical-necessity attestation NOT hard cap). For commercial: AHA/ASA 2016 endorses lifelong rehab for skill maintenance + state parity laws. Jimmo v. Sebelius (2013) settlement: maintenance therapy covered when skilled care needed REGARDLESS of improvement potential. Plateau ≠ denial; document NEW measurable goals (return-to-work, stair-climb, ADL component).
What Aetna typically denies for stroke & neuro rehab
Across Aetna's commercial and Medicare books, denials cluster around a small number of patterns. For stroke & neuro rehab, expect:
- UM-2575 medical necessity denials
- Prior auth absent
- Step therapy on specialty drugs
- Out-of-network ER reduction
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 Aetna
- Read the denial letter — note the exact denial reason code and the appeal deadline (180 days from the date on the letter).
- 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 Aetna cited in the denial.
- File the appeal through Aetna's portal (members: https://www.aetna.com ; providers: https://www.aetnaprovider.com). Standard decision returns within 30 days; expedited urgent appeals return within 72 hours.
- If denied again, request external review by an independent reviewer within 4 months of the final internal denial. In CT, 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 Aetna's prior-authorization criteria by drug: Aetna PA criteria on ApprovalHelp.
Frequently asked questions
How long do I have to appeal an Aetna stroke & neuro rehab denial?
Aetna allows 180 days from the date on the denial letter to file an internal appeal. Standard decisions come back within 30 days; expedited decisions for urgent care typically within 72 hours.
What's the fastest way to submit an Aetna appeal?
Members can submit through the Aetna member portal at https://www.aetna.com. Providers should use the provider portal at https://www.aetnaprovider.com. Faxed and mailed appeals are accepted but take longer.
What denials does Aetna most often issue for stroke & neuro rehab?
For stroke & neuro rehab, Aetna most often denies on: 1) Visit cap reached; 2) Plateaued progress; 3) Maintenance not covered. The strongest counters: For Medicare patients: therapy cap REPEALED by Bipartisan Budget Act 2018 §50202; KX modifier threshold $2,330 in 2024 (medical-necessity attestation NOT hard cap). For commercial: AHA/ASA 2016 endorses lifelong rehab for skill maintenance + state parity laws. Jimmo v. Sebelius (2013) settlement: maintenance therapy covered when skilled care needed REGARDLESS of improvement potential. Plateau ≠ denial; document NEW measurable goals (return-to-work, stair-climb, ADL component).
What if Aetna denies the appeal too?
After an internal appeal denial you have the right to an external review by an independent reviewer (IRO) — request it within 4 months of the final internal denial.
Related appeal guides
Start your Stroke & neuro rehab appeal
Upload your Aetna denial letter — DenialHelp drafts a physician-ready appeal in five minutes, aligned to ACA §2719 + ERISA §503.
Get started →Contact: hello@denialhelp.com