PROCEDURE PLAYBOOK · NEUROLOGY / IMMUNOLOGY

How to appeal an IVIG Infusion denial

IVIG denials are among the highest-dollar in medicine and hinge on the diagnosis-specific coverage policy, step-therapy, and the drug J-code, payers restrict IVIG to specific approved indications and deny buy-and-bill product outside them.

Common code: CPT 96365-96368 (infusion admin) + J-codes (J1568-J1569, J1459 immune globulin)

Why it gets denied

  • The diagnosis isn't on the payer's approved IVIG indication list, or the criteria weren't documented
  • Step-therapy or prior-treatment requirements weren't met
  • Prior authorization lapsed or didn't cover the dose/frequency infused
  • The J-code product units or infusion-time units didn't reconcile to the dose

What overturns it

  • Map the diagnosis to the payer's covered IVIG indications and document the criteria (e.g. CIDP, MMN findings)
  • Document the required prior treatments or contraindications for step-therapy
  • Keep prior auth current for the exact product, dose, and frequency and tie it to the claim
  • Reconcile the product and infusion-time units to the administration record

Worth appealing? IVIG can run into five figures per infusion in drug cost the practice fronts, so a denial is major capital exposure. These are critical to recover and are winnable when the indication criteria and dosing are documented.

Common questions

How do I appeal an IVIG Infusion denial?

IVIG denials are among the highest-dollar in medicine and hinge on the diagnosis-specific coverage policy, step-therapy, and the drug J-code, payers restrict IVIG to specific approved indications and deny buy-and-bill product outside them. To overturn it: map the diagnosis to the payer's covered IVIG indications and document the criteria (e.g. CIDP, MMN findings); document the required prior treatments or contraindications for step-therapy; keep prior auth current for the exact product, dose, and frequency and tie it to the claim; reconcile the product and infusion-time units to the administration record.

Why do IVIG Infusion claims get denied?

The diagnosis isn't on the payer's approved IVIG indication list, or the criteria weren't documented; Step-therapy or prior-treatment requirements weren't met; Prior authorization lapsed or didn't cover the dose/frequency infused; The J-code product units or infusion-time units didn't reconcile to the dose.

Is a IVIG Infusion denial worth appealing?

IVIG can run into five figures per infusion in drug cost the practice fronts, so a denial is major capital exposure. These are critical to recover and are winnable when the indication criteria and dosing are documented. You pay 25% only on what's recovered, so there's no cost to working the winnable ones.

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