CCSD code A2220 – Puncture of brain cistern

Key takeaways

CCSD code A2220 covers puncture of cistern of brain, a needle into a subarachnoid cistern, usually the cisterna magna.

UK private medical insurers such as Bupa, AXA Health and Aviva use the CCSD schedule, but each insurer sets its own fee.

Lumbar puncture (A5530) and ventricular puncture (A2080) have their own codes, so the access site in the note decides the code.

The procedure note must say why the cisternal route was used, because reviewers expect a lumbar puncture as the default.

CCSD code A2220: Definition and official descriptor

CCSD code A2220 carries the descriptor “Puncture of cistern of brain.”

It is one of the CCSD codes in chapter 2 of the procedure schedule, Brain, cranium and other intracranial organs, where codes start with A.

CCSD stands for Clinical Coding and Schedule Development. The group was formed to improve coding standards in UK private healthcare, and major private medical insurers sit on it. Insurers such as Bupa, AXA Health, Aviva and The Exeter use its schedule to identify what a consultant did.

The CCSD Technical Guide explains how codes are built and combined. It also makes clear that CCSD publishes no fees. The complexity band and the fee attached to A2220 are for each insurer to decide.

Three points define the billing scope of A2220:

• Anatomical site: A cistern of the brain, most often the cisterna magna. Spinal and ventricular access take other codes.
• What it covers: Needle access to cerebrospinal fluid (CSF) for sampling, pressure measurement or contrast injection. It involves no tissue removal.
• Billing context: UK private medical insurance claims, sent through Healthcode or directly to the insurer.

What puncture of the cistern of the brain involves

Puncture of the cistern of the brain usually targets the cisterna magna. It is the largest subarachnoid cistern, lying between the underside of the cerebellum and the back of the medulla oblongata.

The standard route is suboccipital. The needle enters in the midline between the occipital bone and the posterior arch of the atlas, with the neck flexed.

1. Positioning: The patient lies prone or on one side, with the neck flexed to open the suboccipital space.
2. Preparation: The skin is cleaned and draped, and local anesthetic is infiltrated. General anesthesia is used in some cases.
3. Needle insertion: A spinal needle passes through the skin and the atlanto-occipital membrane until CSF flows back, confirming entry to the cistern.
4. Sampling or measurement: CSF is collected for the laboratory, opening pressure is measured, or contrast is injected.
5. Aftercare: The needle is withdrawn, the site is dressed, and the patient is observed.

Cisternal puncture carries more risk than lumbar puncture, because the needle passes close to the brainstem and posterior fossa vessels. That is why insurer reviewers look for a clinical reason the lumbar route was not used.

Clinical indications for A2220

A2220 fits when CSF access is needed and lumbar puncture is unsuitable or has failed. The usual reasons are:

• Lumbar access not possible: Previous lumbar surgery, severe spinal degeneration or deformity, or infection over the lumbar puncture site.
• Diagnostic CSF sampling: Suspected meningitis, CSF cytology for cancer affecting the nervous system, or a multiple sclerosis workup.
• Contrast injection: Cisternography or myelography that needs contrast introduced at the cistern level.
• Pressure measurement: Opening pressure when lumbar manometry is not possible.

Record the indication in the procedure note. A note that describes the puncture but gives no reason for avoiding the lumbar route invites a query from the insurer.

A2220 vs A5530, A2080 and A2210: Choosing the right code

Several CCSD codes sit close to A2220, and the access site in the note settles which one applies. The chart below maps each site to its code.

Name the access point in the note: “suboccipital” or “cisterna magna” for A2220, or the vertebral level for A5530. If a lumbar puncture failed and the cisternal route followed, say so. The table gives each code’s full descriptor and how it differs from A2220.

Sometimes a lumbar attempt and a cisternal puncture happen in one episode. Check the CCSD unacceptable-combination list and the insurer’s terms before billing both codes.

What A2220 includes and what is billed separately

The CCSD unacceptable-combination rules and each insurer’s contract decide what can go on the same claim. Billing a part of the procedure as a separate line is a common reason for rejection.

• Included in A2220: The puncture itself, CSF collection, opening pressure measurement, and local anesthetic given by the operator.
• Anesthesia: Where an anesthetist gives general anesthesia, they invoice separately under their own details.
• Imaging: Imaging guidance or a cisternogram is usually reported by the radiologist. Check the insurer’s terms before the consultant bills any imaging.
• Laboratory tests: CSF analysis is billed by the laboratory, not on the consultant’s A2220 claim.

Documentation requirements for an A2220 claim

The procedure note is the document that supports an A2220 claim. Insurer reviewers check that it describes the same procedure as the code and the invoice. The note should include:

• Date of procedure: It must match the date on the invoice.
• Consultant’s name and GMC number: Insurers ask for these on private claims.
• Named site: The cistern accessed, such as “cisterna magna.” “Brain cistern” alone is too vague.
• Approach and position: For example, “suboccipital midline approach, patient prone.”
• Indication: The diagnosis, and why the cisternal route was chosen over lumbar puncture.
• Imaging guidance: Whether fluoroscopy or another method guided the needle.
• Outcome: The CSF volume taken, the opening pressure, or the contrast given.
• Complications: Any that occurred, and how they were managed.

ICD-10 diagnosis codes to pair with A2220

UK insurers expect an ICD-10 diagnosis on the claim that matches the recorded indication. Pair the code with the reason for the puncture, not a later finding. Common pairings are below. Check each one against the WHO ICD-10 browser before submission.

Pre-authorization: What UK insurers require before A2220

UK private medical insurers generally expect pre-authorization before planned treatment. The patient usually calls their insurer for an authorization number before the procedure. The practice then puts that number on the invoice.

• Confirm recognition: Check that the consultant is recognized by the patient’s insurer for this type of procedure.
• Confirm the policy: Make sure the policy is active on the procedure date and covers the treatment.
• Record the reference: Store the authorization number, its date and any conditions on the patient’s record.
• Urgent cases: Where the puncture is urgent, tell the insurer as soon as practical. Expect the notes to be reviewed in full afterward.

Each insurer runs its own process, so check its provider portal. The Bupa code search shows how Bupa treats a code. The Pabau Bupa CCSD codes guide covers what Bupa expects on a claim.

Who sets the fee for A2220?

CCSD does not set fees. Each insurer publishes its own schedule, with its own complexity band and maximum benefit for each code. Fees differ between insurers and change between editions.

For example, The Exeter’s published fee schedule lists A2220 with a procedure maximum of £150 and an anesthetic maximum of £181. Bupa, AXA Health and Aviva each set their own figures. Check the schedule in force on the procedure date before you raise the invoice.

If the consultant charges more than the insurer’s maximum, the patient may have to pay the difference. Tell the patient about any shortfall before the procedure.

How to submit an A2220 claim

1. Confirm recognition and authorization: Check the consultant’s recognition with the insurer and get the authorization number.
2. Write the note on the day: Record the site, approach, indication and outcome while the details are fresh.
3. Raise the invoice: Add CCSD code A2220, the ICD-10 diagnosis, the procedure date, the GMC number and the authorization number.
4. Apply the insurer’s fee: Use the insurer’s own schedule, because CCSD sets no fee.
5. Submit the claim: Send it through Healthcode or the insurer’s own route.
6. Track and follow up: Watch the claim status, answer queries quickly, and correct and resubmit any rejected claim.

Common reasons A2220 claims are rejected

• Missing authorization: No authorization number on the invoice, or one that expired before the procedure date.
• Thin procedure note: The note omits the cistern, the approach, the indication or the outcome.
• Wrong code: A lumbar puncture billed as A2220, or a ventricular puncture billed as a cisternal one.
• Diagnosis mismatch: The ICD-10 code on the claim does not match the indication in the note.
• Bundling error: A part of the procedure billed as a separate line, or a code that is an unacceptable combination with A2220.
• Policy issues: The policy had lapsed, or it excludes the treatment.

How Pabau keeps A2220 claims complete from note to payment

In many private practices, the authorization number sits in an email and the procedure note in another system. The invoice is then built by hand, which is how a missing GMC number or authorization slips through.

Pabau keeps the patient record, clinical notes, invoices and payments in one place. Your team records the authorization number, its dates and sessions on the patient’s case, and Pabau warns when one is missing. Its end-to-end claims management sends UK claims through Healthcode and Bupa, using the insurer list each one provides.

The result is fewer claims sent back for a missing detail, and a clear view of what each insurer still owes.

Send complete A2220 claims the first time

Pabau links authorizations, invoices, insurance claims and payments to the patient record, so each claim goes out with the details the insurer checks.

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Conclusion

A2220 is a narrow code, so a claim that comes back usually lacks proof of which route was used and why. When the note names the cisterna magna and explains why a lumbar puncture was unsuitable, a reviewer has little left to query.

Do the checks before the procedure, not after a rejection. Confirm recognition and authorization, take the fee from the insurer’s own schedule, and match the diagnosis to the indication. Book a demo to see how Pabau ties authorizations, notes and claims to one patient record.

Continue your research

Billing CCSD codes for Bupa patients? Bupa CCSD procedure codes explains how to look up and submit codes for Bupa-recognized consultants.

Coding a lumbar puncture instead? CCSD code A5530 covers lumbar puncture, including spinal manometry.

Was the needle in a ventricle? CCSD code A2080 covers ventricular puncture as a sole procedure.

Draining the subarachnoid space surgically? CCSD code A2210 covers drainage of the subarachnoid space of the brain.

Tracking private insurance claims? Claims management software shows how Pabau handles UK insurance billing.

Frequently asked questions