procedure code 99291 — prior authorization under Kaiser Permanente
Billing code 99291 · Category: inpatient
In our reference, this procedure typically requires prior authorization.
Typical turnaround is 1 day(s); Kaiser Permanente's
standard turnaround is 5 business days (72 hours if urgent).
How to submit
Internal Kaiser referral system
Documentation typically required
Critical care documentation
Vitals/labs supporting ICU level
Common reasons this gets denied
Does not meet critical care criteria
Step-down appropriate
Kaiser Permanente-specific notes
Integrated model — most in-network services skip PA
Out-of-network referrals require PA
Specialty referrals via PCP gateway
Coverage limits: this page does not confirm authorization for any specific member's plan, and does not cover state-specific plan variants, out-of-network requests, or every payer x procedure pair in existence. For a definitive answer, contact Kaiser Permanente directly using the submission method above.
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