< Billing codes

Billing code

E805A — Endoscopic ultrasound – drainage of pseudocyst

EUS pseudocyst drainage

Add for drainage of a pseudocyst through a linear or radial echo-endoscope, including stent insertion if done.

Watch for: Must be billed with S236 or S237; stent insertion is already included.

Code

E805A

Description

Endoscopic ultrasound – drainage of pseudocyst

FHO+ basket

Not in the FHO+ base rate basket (Schedule 2 or 2B).

Effective date

Apr 1, 2025

Termination date

No end date

Explanation

Updated October 26, 2026

Add-on for EUS drainage of a pseudocyst, including stent insertion if done, through a linear or radial echo-endoscope.

What it covers

E805 is drainage of a pseudocyst through a linear or radial echo-endoscope, including stent insertion if performed (S6).

Billing rules

• Add-on under the linear or radial echo-endoscope listings, S236 (excluding biliary/pancreatic exam) or S237 (including it) (S6).
• Stent insertion is included when done (S6).
• S236 pays zero when billed with S237 (S6).
• Upper or lower GI endoscopy with S236 or S237 pays zero unless needed because of limited visualization with the echo-endoscope (S6).
• Marked #: premises, equipment, supplies and staff are funded by the hospital budget or ICHSC facility costs, and patients can't be charged for them (GP13).
• Under-16 age premiums (10–30%) apply to surgical procedures in Parts K to Z (GP64).

Often billed with

• S236 or S237 (S6).

Common rejections

• ADF: OHIP describes this as 'Corresponding Procedure Invalid, Omitted or Paid at zero': the base procedure (S236 or S237) is missing from the claim, invalid, or paid at zero. Add-ons are payable only with their base code.

Related codes: S236, S237, E802, E804

Source: Schedule of Benefits (July 1, 2026), Digestive System Surgical Procedures, Endoscopic Ultrasound, page S6.

APEX checks every paid claim against the Schedule of Benefits and flags codes billed below what the visit qualified for. See how APEX works · Pricing