Procedure code for insurance

Gastroscopy is usually done as a day-case procedure in hospital. This means that you will be an outpatient and won't need to stay overnight.

Your stomach must be completely empty during the test,  you must not eat or drink for four hours before your gastroscopy. 

Before the procedure you will be given a choice of a local anaesthetic or a sedative (though you may wish to have both). The local anaesthetic is a spray that numbs your throat area and reduces gagging.

The sedative will help you relax; this is given as an injection at the start of the procedure, you can receive additional sedation if necessary. Because of the way the sedatives work, you’ll be awake and you may remember very little about the procedure. 

Before Procedure
The procedure usually takes five to 10 minutes. 

Your nurse will ask you to take wear on a hospital gown. They will also ask you to remove dentures or dental plates, contact lenses or glasses. There will be a series of safety checks to make sure the procedure is OK to go ahead. 
If you’re having a local anaesthetic, the doctor will spray your throat just before the procedure. If you're having a sedative, this is given through a fine tube (cannula) into a vein in your arm.

Sedatives can sometimes affect your breathing, so while you are sedated your nurse will monitor your heart rate and the amount of oxygen in your blood through a sensor attached to your finger. 

You will lie on your left side, a guard into your mouth will be placed to protect your teeth.

Gastroscope would be passed through the opening of the guard into your mouth, until it rests on your tongue at the back of your throat. They will then ask you to make a swallow action to allow the gastroscope to pass into your oesophagus and down towards your stomach.

To help with the examination, a nurse may use a suction tube to remove excess saliva from your mouth. Your doctor will also inflate your stomach with air through the gastroscope. This makes it easier to examine the lining of your stomach. 

If necessary, your doctor can take biopsies (a small sample of tissue).
After procedure

You will be able to go home when you feel ready, usually between 30 minutes and one hour. You will need to arrange for someone to drive you home. You should have a friend or relative stay with you and not to drive or sign any legal documents for the first  24 hours.. 

After a local anaesthetic, it usually takes around an hour before the feeling comes back into your mouth and throat. The team looking after you will offer you food and drink once the anaesthetic has worn off, and advise you on eating and drinking at home. 

You will  get a date for a follow-up appointment to discuss the findings in more detail.  Any results will also be sent to your GP.


The risk is low with this procedure.
These are mostly temporary effects, you may have a sore throat or stomach discomfort for a few hours. You may feel bloated, but this usually passes quite quickly. 

Complications of gastroscopy are uncommon, but includes bleeding, damage or tears to your throat, oesophagus, stomach or duodenum. 
Aspiration related infection.