CCSD code 22000 – Routine EEG including reporting

Key takeaways

CCSD code 22000 covers routine EEG in adults and children over 5, with reporting bundled into the procedure fee.

Reporting cannot be billed separately, and unbundling the interpretation charge is a known claim audit trigger.

Children under 5 must be billed under a different CCSD code, so applying 22000 to that age group is a coding error.

Ambulatory EEG is 22004 and 24-hour video telemetry EEG is 22005, so neither belongs on a 22000 invoice.

Most UK private insurers require pre-authorization for neurophysiology procedures before the claim is processed.

CCSD code 22000: Definition and clinical scope

CCSD code 22000 is the Classification of Clinical Services and Diagnoses billing code for routine electroencephalography in adults or children aged over 5. The written report from the interpreting neurophysiologist is bundled into the code and cannot be invoiced on its own.

The official CCSD schedule is maintained by The CCSD Group, whose members are Bupa, Vitality, AXA Health, and Aviva. A CCSD Board and a Working Group handle its upkeep. The schedule states the descriptor verbatim: “Routine electroencephalography (EEG) in adult or child aged over 5 (Including reporting).”

Three elements of that descriptor decide whether the code fits. The procedure must be routine in scope, which means a standard multi-channel recording rather than an extended ambulatory study or video-EEG. The patient must be aged over 5 on the recording date. The report is covered by the fee, so it never appears as a separate line item.

CCSD codes are used exclusively in the UK private healthcare sector. They do not apply to NHS billing, which uses HRG tariff codes. Practitioners working across both sectors should apply CCSD 22000 only to privately funded episodes.

How a routine EEG is performed

A routine EEG records the electrical activity of the brain through scalp electrodes, typically over 20 to 40 minutes of data acquisition. Knowing the steps helps billing staff verify that what was delivered matches what is being coded.

1. Patient preparation: The patient is seated or reclined. Hair must be clean and product-free so the electrodes make adequate contact.
2. Electrode placement: Scalp electrodes are applied using the internationally standardized 10-20 placement system, typically 19 to 21 electrodes plus reference and ground. Electrode impedance is checked before recording begins.
3. Recording: The EEG technician or clinical neurophysiologist records resting waveforms plus standard activation procedures, which routinely include hyperventilation and photic stimulation. The recording captures multiple montages.
4. Removal and reporting: Electrodes are removed and the recording is reviewed. A qualified clinical neurophysiologist produces a written report covering background rhythms, any abnormal features, and a clinical interpretation. That report is a required component of the code descriptor.

The procedure is performed by a trained EEG technician under the governance of a clinical neurophysiologist, who is responsible for the interpretation report. The British Society for Clinical Neurophysiology (BSCN) sets the standards for recording quality and report content that private insurers expect to see behind a claim.

Clinical indications that support the claim

Insurers assess medical necessity when processing CCSD code 22000 claims, so the referral must document a clinically supported reason for the EEG. Accepted indications align with BSCN and neurological clinical guidelines. A referral filed against the procedure record makes that link easy to demonstrate during a claim audit.

• First or recurrent seizure: establishing whether the event has epileptiform features
• Suspected epilepsy: characterizing seizure type and supporting classification
• Monitoring known epilepsy: assessing response to anti-epileptic medication or detecting subclinical seizures
• Unexplained loss of consciousness or blackout episodes
• Suspected encephalopathy: diffuse brain dysfunction associated with metabolic, toxic, or infective causes
• Assessment of altered mental status of unclear etiology
• Pre-surgical evaluation in epilepsy candidates
• Assessment of non-convulsive status epilepticus in an inpatient private setting

The referral letter or clinic correspondence included with the claim should state the specific clinical question the EEG is meant to answer. A vague indication such as “query neurological” is a common cause of medical necessity disputes with insurers.

What the fee includes, and what it does not

The fee covers the recording, the standard activation procedures, the electrode work, and the written interpretation. Sedation, video-EEG, and prolonged monitoring sit outside it and carry their own codes.

Bundling is the single most important billing rule on this code. Practices used to the NHS model often track recording and reporting separately in-house. Invoicing the interpretation as its own line under CCSD is a billing error.

Choosing between the CCSD EEG codes

Code 22000 is correct only for a standard waking session in a patient aged over 5. Picking the wrong code from the CCSD neurophysiology family is the most common source of EEG claim rejections. Two checks settle it. Start with the patient’s age, then match the type of recording you performed.

The table below carries the detail behind that routing. The Bupa CCSD codes reference covers how the wider code families are structured.

The over-5 age boundary

The over-5 boundary is explicit in the CCSD 22000 descriptor, and insurers enforce it at the claims processing stage. A child aged 4 years and 11 months does not qualify.

Applying the over-5 code to that patient usually results in a rejected claim, or a repayment request if it surfaces during an audit. Children under 5 have their own CCSD code, so confirm the current number against the live schedule before billing.

Documentation an insurer will ask for

A clean CCSD code 22000 claim relies on a complete and contemporaneous clinical record. Insurers have the right to request supporting documentation, and an incomplete record is grounds for rejection or a repayment demand. Digital clinical forms that make the required fields mandatory before a record is saved keep that risk low.

The following must be present in the patient record before the claim is submitted:

• Referral letter or clinical correspondence: Documents the referring clinician, the clinical indication, and the question the EEG is meant to answer
• Patient date of birth: Confirms the patient was aged over 5 on the recording date. Insurers check this against the age restriction in the descriptor
• Electrode count and montage used: Number of electrodes applied and the recording montage sequence, consistent with the 10-20 system standard
• Recording duration: Total duration of the EEG acquisition, inclusive of activation procedures
• Activation procedures performed: Hyperventilation and photic stimulation documented, or a clinical reason recorded if either was omitted
• Signed written report: A formal interpretation signed by a suitably qualified clinical neurophysiologist. Unsigned or technician-only reports do not meet BSCN standards for a billable interpretation
• Procedure date: Must match the date on the invoice submitted to the insurer

Practices in England are also subject to CQC registration requirements that govern record keeping for regulated activities. The documentation standard CQC expects lines up with what insurers want to see behind a claim.

Pre-authorization requirements by insurer

Most major UK private health insurers require pre-authorization for neurophysiology procedures before a claim will be accepted. Pre-authorization is not a guarantee of payment, but it is a prerequisite. A claim submitted without it is typically rejected regardless of clinical appropriateness.

Insurer requirements vary by policy and are updated periodically, so verify them with each insurer before booking the procedure. The general position across major UK insurers as of 2026 is:

Billing staff should obtain the authorization reference number before the appointment is confirmed, then record it in the patient’s file. If a procedure goes ahead without pre-auth, the insurer has grounds to decline the claim in full. Some policies allow a retrospective appeal, but that is not a routine fix.

Why EEG claims get denied, and how to prevent it

EEG claims are rejected more often than billing staff expect, usually for procedural reasons a pre-submission check would catch. The seven below cover most CCSD 22000 rejections, and they follow the patterns seen across the wider set of denial codes in medical billing.

What to charge for code 22000

The CCSD schedule published by The CCSD Group carries a suggested fee for each code, 22000 included. Those are guide prices rather than fixed rates. Insurers negotiate their own reimbursement rates with recognized providers, and those rates may sit above or below the CCSD figure.

For self-pay patients the practice sets its own rate, often using the CCSD guide fee as a benchmark. Before invoicing for CCSD code 22000, billing staff should check three things:

1. The current suggested fee on the live CCSD schedule. Fees are updated periodically, and an out-of-date figure creates disputes.
2. The insurer-specific reimbursement rate, taken from the insurer’s fee schedule or the practice’s recognition agreement.
3. The patient’s cover, meaning whether the policy covers neurophysiology investigations and whether an excess or co-payment applies.

How Pabau keeps CCSD 22000 claims audit-ready

Billing CCSD code 22000 correctly means tying the code to the right patient record and the correct procedure date. The signed report has to be in place before the invoice goes out.

Practice management software like Pabau holds all three in one place. Our claims management software handles insurer invoicing, authorization tracking, and claim submission for UK private practices.

1. Create the episode and link the referral: Open the patient record and create an episode or appointment for the EEG. Attach the referral letter, or record the referral source and clinical indication in the notes.
2. Record the pre-authorization reference: Before the appointment, enter the insurer authorization reference in the episode record. Surfacing that field on the invoice cuts omission errors sharply.
3. Enter CCSD code 22000 as the procedure code: Select the code and confirm the procedure date matches the EEG recording date. Then apply the insurer-negotiated rate, or the practice’s self-pay rate.
4. Attach the signed EEG report: Upload or link the signed neurophysiology report to the episode record. Insurers that request it alongside the invoice can then be answered without delay.
5. Generate and submit the invoice: Automate invoice generation and submission from the episode record. Before sending, verify the invoice shows the procedure date, the CCSD code, the authorization reference, and the practitioner’s recognition number.

Practices with high EEG volumes benefit from a pre-submission checklist built into the workflow, covering the age check, report sign-off status, and pre-auth reference. Pabau prompts staff to complete those checks before an invoice status changes to submitted. The error gets caught inside the practice rather than by the insurer.

Manage CCSD billing and insurer invoicing in one place

Pabau supports UK private practices with CCSD code billing, insurer invoice generation, digital forms, and report attachment. See how it fits your neurophysiology workflow.

Book a demo

Conclusion

CCSD code 22000 is narrow in scope and still billed incorrectly more often than it should be. The bundled report, the over-5 age restriction, and insurer pre-authorization drive most rejections. All three are settled before the procedure, not after the claim comes back.

The practical move is to put the checks where the work already happens. Record the authorization reference at booking, keep the signed report in the same patient record as the invoice, and the quarterly audit becomes a formality. Book a demo to see how Pabau handles CCSD billing and insurer invoicing for UK private practices.

Continue your research

Need to check what an insurer will pay? Bupa procedure codes fee schedule explains how Bupa sets reimbursement rates and where to look up a code.

Want to cut claim admin across your private practice? Claims management software shows how Pabau handles insurer invoicing, authorization tracking, and claim submission.

Frequently asked questions