CCSD code K5740 – Ablation of ventricular arrhythmia

Key takeaways

CCSD Code K5740 covers ablation of ventricular arrhythmia including mapping, so electroanatomical mapping is bundled and never billed as a separate line.

Principal indications include sustained VT, VT storm, idiopathic VT, PVC-induced cardiomyopathy, and VF with an identifiable trigger.

Atrial, accessory-pathway and congenital arrhythmia ablations have their own K57xx codes, and a diagnostic-only EP study is billed as K5810.

Insurers expect pre-authorisation before the procedure, and missing it is a common cause of claim rejection.

Pabau, the practice management platform we build, stores each pre-authorisation code against the appointment so it reaches the CCSD-coded claim.

CCSD Code K5740: Definition and clinical description

CCSD Code K5740 is the Clinical Coding and Schedule Development (CCSD) procedure code for ablation of ventricular arrhythmia (including mapping). It is used in UK private healthcare billing. The CCSD schedule is used by the CCSD Group insurers: Aviva, AXA Health, Bupa and VitalityHealth. Other insurers adopt it at their own discretion, and the NHS uses Healthcare Resource Groups (HRGs) instead.

K5740 sits in Chapter 8 (Heart – Cardiology) of the CCSD schedule. Its neighbours there cover atrial, accessory-pathway and congenital arrhythmia ablation, and the full set of CCSD codes for consultants runs across every specialty.

Therapeutic intent is what separates K5740 from diagnostic electrophysiology codes. The ablation catheter is deployed to eliminate or modify the arrhythmia substrate, and the descriptor explicitly includes the mapping that guides it. Those two elements define the billing scope.

The procedure: Ablation of ventricular arrhythmia including mapping

A K5740 procedure follows a structured sequence performed in an EP lab under fluoroscopic guidance, typically with sedation or general anaesthesia. Understanding each phase clarifies why mapping is inseparable from ablation and therefore bundled within the single code.

1. Vascular access: Femoral venous access (and sometimes femoral arterial access for retrograde aortic approach) is established. One or more long sheaths are advanced to the cardiac chambers under fluoroscopy.
2. Baseline electrophysiology study: Intracardiac electrograms are recorded at rest and during programmed ventricular stimulation to characterise the arrhythmia and confirm inducibility.
3. Electroanatomical mapping: A three-dimensional map of the ventricular chamber is constructed using a dedicated mapping system (CARTO by Biosense Webster or EnSite by Abbott). Voltage mapping identifies scar tissue; activation and entrainment mapping localises the re-entry circuit or ectopic focus driving the arrhythmia.
4. Ablation delivery: Radiofrequency energy (RFA) or cryothermal energy is applied to the target site or circuit. Multiple lesion sets may be needed for scar-related ventricular tachycardia (VT).
5. Endpoint confirmation: Non-inducibility of the clinical arrhythmia after repeat programmed stimulation, or elimination of the culprit PVC, confirms procedural success. Fluoroscopy time and catheter positions are logged.

Mapping directs where ablation energy is delivered, so in ventricular arrhythmia work it is part of the procedure itself. Ablating a ventricular substrate without it would be clinically substandard, which is why the CCSD descriptor packages both into K5740.

Clinical indications: When is K5740 used?

K5740 is appropriate when catheter ablation is the intended therapeutic intervention for a ventricular rhythm disorder. The British Heart Rhythm Society (BHRS) and the European Heart Rhythm Association (EHRA) publish consensus guidance on indications. The list below covers the principal clinical scenarios in which an electrophysiologist would submit this code.

• Sustained monomorphic VT in structural heart disease (ischaemic cardiomyopathy, dilated cardiomyopathy, arrhythmogenic cardiomyopathy)
• VT storm: Recurrent haemodynamically destabilising VT, often post-ICD implantation, where ablation is used to reduce shock burden
• Idiopathic VT: Outflow tract VT (RVOT, LVOT), fascicular VT, and other forms arising in structurally normal hearts
• PVC-induced cardiomyopathy: High-burden premature ventricular contractions causing ventricular dysfunction, where ablation eliminates the PVC focus
• Ventricular fibrillation with an identifiable trigger: Ablation of the Purkinje-related or PVC trigger driving VF in selected patients

K5740 is not the correct code for atrial fibrillation, atrial flutter or accessory-pathway arrhythmias, even when the ablation technique is similar. Atrial and accessory-pathway arrhythmias have their own codes in the K57xx block.

What K5740 includes and what it excludes

Accurate bundling decisions prevent overbilling queries and claim rejections. The table below sets out what is covered within K5740 and what may be billed separately or is not billable at all.

Verify bundling rules against the current CCSD technical guide edition. Bundling rules are updated between editions, and individual payer policies may apply additional restrictions.

Neighbouring CCSD codes and how to choose the right one

K5740 belongs to a block of CCSD cardiology codes covering ablation procedures for different arrhythmia substrates. Choosing the wrong code within this block is a common cause of claim queries and downcoding. The table below lists the adjacent arrhythmia ablation codes. Verify current descriptors and fee levels against the Bupa code search or the relevant insurer’s fee finder before billing.

The critical distinction is between K5740 and the atrial and accessory-pathway ablation codes (for example K5730, K5760 and K5780). Submitting one of those for a ventricular ablation, or K5740 for an atrial one, creates a mismatch against the procedure note. That mismatch is a common audit trigger.

CCSD also lists K5770, for ablation in complex congenital heart disease, as an unacceptable combination with K5740. When the session ends without ablation, the study is billed as K5810 instead. The chart below walks through the choice in the order a coder reads the procedure note.

Documentation requirements for K5740

Private insurers will query or reject a K5740 claim if the procedure note does not substantiate each billable element of the code descriptor. A complete EP lab report for a ventricular arrhythmia ablation must contain each of the following elements.

• Clinical indication and arrhythmia type: Specify the ventricular arrhythmia (e.g. sustained monomorphic VT, idiopathic RVOT VT, high-burden PVCs with cardiomyopathy). Reference prior investigations – Holter, loop recorder, ICD log, or EP study data – that established the indication.
• Mapping system used and findings: Name the electroanatomical mapping system (CARTO, EnSite, or equivalent). Describe the map type (voltage map, activation map, entrainment map) and the key findings: Scar burden, circuit characteristics, or ectopic focus location.
• Energy modality and lesion sets: State whether radiofrequency ablation (RFA) or cryoablation was used. Document the lesion sets delivered, including target sites, contact force readings where available, and lesion duration.
• Acute procedural endpoint: Record the endpoint achieved: Non-inducibility of the clinical VT, elimination of the clinical PVC, or a specified reduction in VT morphologies. This is the evidence that ablation was performed and the therapeutic aim of K5740 was met.
• Anaesthetic method: Record whether the procedure was performed under general anaesthesia, deep sedation, or conscious sedation. Note the anaesthetist’s name so the insurer can reconcile the separate anaesthetic claim.
• Fluoroscopy time and radiation dose: Log total fluoroscopy time and dose-area product (DAP). Some insurers request this to verify the complexity of the procedure.

Missing any of these elements gives insurers grounds to query the claim. They may ask whether mapping was performed, whether the substrate was ventricular, or whether the endpoint was reached. A thorough EP lab report heads off most of those queries before submission.

Pre-authorisation: What UK private insurers require

UK private medical insurers expect pre-authorisation (pre-auth) before a catheter ablation goes ahead. Proceeding without it exposes the practice to full claim rejection, however well the procedure is documented. The Bupa CCSD code guide explains the general framework, and the table below covers the evidence each payer typically asks for with K5740.

Four pieces of clinical evidence consistently strengthen a pre-auth request:

• Documented failure of at least one antiarrhythmic drug
• An objective arrhythmia recording from a Holter, ICD log or loop recorder
• Echocardiographic data, particularly ejection fraction where cardiomyopathy is the indication
• A clear statement of the mapping system to be used

Insurers do not guarantee approval even when every documentation criterion is met.

Common reasons CCSD Code K5740 claims are denied

Most K5740 denials stem from one of five root causes, each with a clear corrective action.

Billing K5740 alongside other codes

Co-submission is one of the least-documented areas of K5740 billing. The guidance below reflects standard CCSD bundling principles and common payer practice. Co-billing rules differ between insurers and change between editions, so check the current CCSD technical guide and each payer schedule first.

Submit claims through Healthcode where possible. UK private insurers accept electronic claims through the platform, which validates the format before the claim reaches the payer. Practices with a steady flow of electrophysiology cases often compare UK medical billing software that links pre-auth records, procedure notes and invoices in one workflow.

How Pabau carries the pre-auth code through to the K5740 claim

Many cardiology billing teams keep pre-auth references in a spreadsheet, then re-key them onto the claim after the procedure. A missing or mistyped reference can sink an otherwise clean K5740 claim.

Pabau stores each insurer pre-authorisation as a case on the patient record. Attach the case when you book the ablation, and the authorisation code follows the appointment through to the claim. Its private practice claims management flags any claim still missing a code before it is sent.

Claims are raised from the patient’s invoice, checked for missing or invalid details, and sent through Healthcode to Bupa, AXA Health and Vitality. If a claim comes back rejected, Pabau shows the reason so your team can correct the field and resubmit.

Keep K5740 pre-auths and claims in step

Pabau ties each pre-authorisation code to the ablation appointment and raises the CCSD-coded claim from the invoice. Claims are checked for missing details before they go to Bupa, AXA Health or Vitality through Healthcode.

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Conclusion

A K5740 claim pays when three records agree. The authorisation covers the procedure, the note names a ventricular substrate, and the report shows that mapping guided the lesions. Your team already produces each of them, so the work lies in checking them before submission.

Move that check to the booking stage rather than the billing run. Confirm the pre-auth code when the ablation is scheduled, and send the EP lab report back if it does not name the mapping system. Leave any same-day device implant off the claim until the combination rules are confirmed.

Book a demo to see how Pabau carries the pre-auth code from the ablation booking to the K5740 claim.

Continue your research

Need guidance on Bupa’s CCSD procedure codes? Bupa CCSD codes guide covers the code schedule, fee chapters, and submission rules for UK private practice billing.

Billing an EP study that ended without ablation? CCSD Code K5810 explains the diagnostic intracardiac electrophysiological study code and its documentation.

Choosing billing software for a UK private practice? Best medical billing software in the UK compares the platforms that handle Healthcode claims.

Frequently asked questions