The National Institute for Health and Clinical Excellence (NICE) has issued full guidance to the NHS in England, Wales, Scotland and Northern Ireland on Percutaneous occlusion of the left atrial appendage in non-valvular atrial fibrillation for the prevention of thromboembolism.

It replaces the previous guidance on Percutaneous occlusion of the left atrial appendage for atrial fibrillation, IPG181, June 2006.

  • Description

    Atrial fibrillation (AF) is the irregular and rapid beating of the upper two chambers of the heart (the atria) which increases the risk of stroke. In people with AF, blood clots often form in the left atrial appendage, which is a small sac off the left atrium. These clots can travel in the blood to the brain, where they may block the blood flow, causing a stroke. In this procedure, a special device is inserted that blocks the mouth of the left atrial appendage in order to prevent migration of the blood clot.

  • OPCS4.6 Code(s)

    K62.5 Percutaneous transluminal occlusion of left atrial appendage

    Y53.- Approach to organ under image control


    Note:  U20.2 Transoesophageal echocardiography is also assigned when transoesophageal echocardiography (TOE) is used during the procedure.


    Codes within category Y53.- are used as secondary codes to classify interventions that are percutaneous and require some form of image control: if the method of image control is unspecified, Y53.9 Unspecified approach to organ under image control is assigned.

    In addition the ICD-10 code I48.X Atrial fibrillation and flutter would be recorded.

    The NHS Classifications Service of the Health and Social Care Information Centre is the central definitive source for clinical coding guidance and determines the coding standards associated with the classifications (OPCS-4 and ICD-10) to be used across the NHS.  The NHS Classifications Service and NICE work collaboratively to ensure the most appropriate classification codes are provided.



  • Get involved