Who is affected by this change?

This affects Michigan Medicaid - MDHHS in MI on Medicaid plans.

When does this change take effect?

This change is effective Mar 10, 2020.

Which billing codes are affected?

The following codes are affected: 99000, 99001, C9803, G2023, P9603, Z03.818, Z11.59, Z20.828.

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MedicaidBilling CodesHigh impact

MSA 20-57

Michigan Medicaid - MDHHS·MI·Provider Bulletin

Effective date

Mar 10, 2020

We identified it

Jun 20, 2026

Days to comply

—

Summary

Michigan Medicaid now reimburses COVID-19 specimen collection services using specific CPT and HCPCS codes for various provider types including practitioners, hospitals, pharmacists, and laboratories. This creates new billable services for COVID-19 testing specimen collection with designated diagnosis codes.

Action Required

Action needed

Immediately: Update billing system to include new COVID-19 specimen collection codes 99000/99001 for practitioners, C9803 for outpatient hospitals, and G2023/P9603 for laboratories. Configure system to require diagnosis codes Z03.818, Z11.59, or Z20.828. Train staff that specimen collection is only billable separately when no other E&M service is provided same day. Ensure pharmacists are enrolled as Rendering Only providers in CHAMPS system.

Affected Billing Codes

99000

99001

C9803

G2023

P9603

Z03.818

Z11.59

Z20.828

Related policy hubs

Michigan Medicaid - MDHHS policies MI policy changes Code 99000 Code 99001 Code C9803 Code G2023 Code P9603 Code Z03.818 Code Z11.59 Code Z20.828