Prior Authorization (PA) Lookup Tool Updated

Noridian is pleased to share that the CMS WISeR program CPT codes have been added to our "Prior Authorization Lookup Tool." In addition, all PA programs are now clearly reflected in the tool's reply results.

When providers or facilities search CPTs or HCPCS codes, the tool identifies whether a PA program applies and specifies which program is involved. Examples from each available PA program, as well as a sample result for codes that do not require prior authorization, are included below.

WISeR

  • WISeR Model participation is voluntary. AZ/WA providers may request prior authorization or prepay review for this HCPC 29877.

ASC

  • A prior authorization is needed for AZ/CA ASC providers for 15820.

AMBULANCE-RSNAT

  • A prior authorization is needed for Repetitive, Scheduled Non-Emergent Ambulance Transport (RSNAT) service code A0428.

HOSPITAL OUTPATIENT DEPARTMENT (OPD)

  • A prior authorization is needed for Part A Outpatient Department providers for 30520.

CODES NOT INVOLVED with PRIOR AUTHORIZATION

  • No prior authorization is necessary for 99212.
Last Updated Jan 22 , 2026