Medicare AdvantageBilling CodesHigh impact
21-209m Check Medicare Revenue Codes on Claims
Health Net·CA·Prior Authorization
We identified it
Jun 20, 2026
Summary
Health Net now requires all Medicare revenue codes on claims to use the full four-digit format with leading zeros to avoid automatic rejections. Claims using three-digit codes (like 022 instead of 0022) will be rejected and must be resubmitted with proper formatting.
Action Required
Immediately: Billing team must update billing software settings to ensure all Medicare revenue codes use four-digit format with leading zeros (e.g., 0022, not 022). Review and correct any claim templates or billing rules that automatically drop leading zeros. Reference current CMS guidelines at provided link before submitting Medicare claims. Claims with improper three-digit revenue codes will be rejected.