Start free

PolicyChanges tracks payer policy changes for medical practices and tells you what to do before they take effect.

Create a free accountPolicy Monitoring is free. No card required.
← Back to list
Health NetMedicaid · Billing Codes · Prior Authorization · CAMedium impact

21-103 COVID-19 Vaccines: What You Need to Know

Act
immediately
Effective date
Not stated in the notice
Identified
Jun 20, 2026

Summary

This policy provides comprehensive guidance on COVID-19 vaccine administration, billing, and coverage for healthcare providers. COVID-19 vaccines are covered at no cost to members, with specific CPT codes for Pfizer-BioNTech (93100) and Moderna (91301) vaccines, and administration codes 0001A/0002A and 0011A/0012A respectively.

Get alerts when payers change rules like this one

We check Health Net and other payers every day and email you when a change matches your specialty and state.

Get Health Net alertsPolicy Monitoring is free. No card required.

What to do

immediately · 3 steps
01Billing team must ensure COVID-19 vaccine billing uses correct CPT codes - 93100 for Pfizer-BioNTech, 91301 for Moderna, with corresponding administration codes 0001A/0002A for Pfizer first/second doses and 0011A/0012A for Moderna first/second doses.
02Update billing system to reflect no patient cost-sharing for COVID-19 vaccines across all plan types.
03Record vaccination details in system within 24 hours and report to local immunization registry within 72 hours.

Codes mentioned

9310091301

Original notice

21-103 COVID-19 Vaccines: What You Need to Know
providerlibrary.healthnetcalifornia.com · Always check the source before changing claims.
View original ↗

Related changes

See all Health Net changes →
21-102 COVID-19 Vaccines: What You Need to KnowMediumNo effective date · Prior Authorization21-104 COVID-19 Vaccines: What You Need to KnowMediumNo effective date · Prior AuthorizationBrowse every Health Net change in the policy list

Related policy hubs

Health Net policiesCA policy changesCode 93100Code 91301

Summaries are AI-assisted. Always confirm against the original payer notice.

What is PolicyChanges

One workspace for payer rules, prior auth, coding and compliance

Medical practices use PolicyChanges to catch payer changes before they cause denials. Every change is summarized in plain English, with the codes involved, the date it takes effect and what to do.

Policy MonitoringPayer policy, prior auth and coding changes, filtered to your saved searchesOIG ScreeningStaff and vendors screened every month against OIG LEIE, SAM.gov and state Medicaid listsPrior Auth LookupKnow if a service needs prior authorization before you schedule itCredentialing TrackerLicenses, CAQH, Medicare revalidation and payer enrollments, with reminders before anything lapsesCompliance CenterKeep your HIPAA program documented and ready to show
Start freePolicy Monitoring is free. No card required.
Get alerts for changes like thisPolicy Monitoring is free. No card required.Create a free account