C9777 – Esophageal mucosal integrity testing by electrical impedance, transoral, includes esophagoscopy or esophagogastroduodenoscopy
HCPCS Level II code · C codes: Outpatient PPS (Hospital Outpatient)
HCPCS codeC9777
- Long description
- Esophageal mucosal integrity testing by electrical impedance, transoral, includes esophagoscopy or esophagogastroduodenoscopy
- Short description
- Esophag muc integ w/eso egd
- Pricing indicator
53Statute- Medicare coverage
DSpecial coverage instructions apply- BETOS category
P8BEndoscopy - upper gastrointestinal- ASC
- Approved for ambulatory surgical centers
- Added
- April 1, 2021
- Last change
- January 1, 2022 – No change
Frequently asked questions
What is HCPCS code C9777?
C9777 is a HCPCS Level II code for esophageal mucosal integrity testing by electrical impedance, transoral, includes esophagoscopy or esophagogastroduodenoscopy.
Does Medicare cover C9777?
The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby C codes
- C9769 – Cystourethroscopy, with insertion of temporary prostatic implant/stent with fixation/anchor and incisional struts
- C9770 – Vitrectomy, mechanical, pars plana approach, with subretinal injection of pharmacologic/biologic agent
- C9771 – Nasal/sinus endoscopy, cryoablation nasal tissue(s) and/or nerve(s), unilateral or bilateral
- C9772 – Revascularization, endovascular, open or percutaneous, tibial/peroneal artery(ies), with intravascular lithotripsy, includes angioplasty within the same vessel (s), when performed
- C9773 – Revascularization, endovascular, open or percutaneous, tibial/peroneal artery(ies); with intravascular lithotripsy, and transluminal stent placement(s), includes angioplasty within the same vessel(s), when performed
- C9774 – Revascularization, endovascular, open or percutaneous, tibial/peroneal artery(ies); with intravascular lithotripsy and atherectomy, includes angioplasty within the same vessel (s), when performed
- C9775 – Revascularization, endovascular, open or percutaneous, tibial/peroneal artery(ies); with intravascular lithotripsy and transluminal stent placement(s), and atherectomy, includes angioplasty within the same vessel (s), when performed
- C9776 – Intraoperative near-infrared fluorescence imaging of major extra-hepatic bile duct(s) (e.g., cystic duct, common bile duct and common hepatic duct) with intravenous administration of indocyanine green (icg) (list separately in addition to code for primary procedure)
- C9778 – Colpopexy, vaginal; minimally invasive extra-peritoneal approach (sacrospinous)
- C9779 – Endoscopic submucosal dissection (esd), including endoscopy or colonoscopy, mucosal closure, when performed
- C9780 – Insertion of central venous catheter through central venous occlusion via inferior and superior approaches (e.g., inside-out technique), including imaging guidance
- C9781 – Arthroscopy, shoulder, surgical; with implantation of subacromial spacer (e.g., balloon), includes debridement (e.g., limited or extensive), subacromial decompression, acromioplasty, and biceps tenodesis when performed
- C9782 – Blinded procedure for new york heart association (nyha) class ii or iii heart failure, or canadian cardiovascular society (ccs) class iii or iv chronic refractory angina; transcatheter intramyocardial transplantation of autologous bone marrow cells (e.g., mononuclear) or placebo control, autologous bone marrow harvesting and preparation for transplantation, left heart catheterization including ventriculography, all laboratory services, and all imaging with or without guidance (e.g., transthoracic echocardiography, ultrasound, fluoroscopy), performed in an approved investigational device exemption (ide) study
- C9783 – Blinded procedure for transcatheter implantation of coronary sinus reduction device or placebo control, including vascular access and closure, right heart catheterization, venous and coronary sinus angiography, imaging guidance and supervision and interpretation when performed in an approved investigational device exemption (ide) study
- C9784 – Gastric restrictive procedure, endoscopic sleeve gastroplasty, with esophagogastroduodenoscopy and intraluminal tube insertion, if performed, including all system and tissue anchoring components
- C9785 – Endoscopic outlet reduction, gastric pouch application, with endoscopy and intraluminal tube insertion, if performed, including all system and tissue anchoring components
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.