HCPCS Level II · Outpatient PPS (temporary codes)
C9777Esophageal mucosal integrity testing by electrical impedance, transoral, includes esophagoscopy or esophagogastroduodenoscopy
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About C9777
C9777 is an HCPCS Level II code in the C series (outpatient PPS (temporary codes)), describing esophageal mucosal integrity testing by electrical impedance, transoral, includes esophagoscopy or esophagogastroduodenoscopy.
It was added to HCPCS effective 04/01/2021, and its current record took effect 01/01/2022.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Esophag muc integ w/eso egd
- Date added
- 04/01/2021
- Action effective
- 01/01/2022
- BETOS
- P8B
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Common questions about C9777
Is HCPCS C9777 still valid?
- Yes. C9777 is active in the CMS October 2026 HCPCS file.
Does Medicare cover C9777?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.