CCSD code G3440 – Closure of gastrostomy

Key takeaways

CCSD Code G3440 covers closure of gastrostomy for UK private medical insurers such as Bupa, AXA Health, Aviva and Vitality.

The code covers stoma takedown, layered repair of the stomach wall and abdominal closure. A persistent fistula needing its own dissection may need a separate code.

UK insurers expect pre-authorization before an elective closure, and a claim without the authorization reference is usually rejected at first pass.

G3400 forms a gastrostomy and G3440 closes one, so the two codes never appear together on the same operative episode.

Pabau’s claims management software keeps the insurer, policy number and authorization code on the patient record, then sends the claim through Healthcode.

CCSD Code G3440: Definition and clinical scope

CCSD Code G3440 is the procedure code for closure of gastrostomy under the CCSD coding conventions used by UK private medical insurers. The official descriptor is Closure of gastrostomy. The code covers taking down a gastric stoma, repairing the stomach wall and closing the abdominal layers.

It applies whether the original gastrostomy was formed percutaneously, endoscopically or by open surgery. The CCSD schedule lists G3440 in chapter 11 (Abdomen), under 11.2.0 Stomach, and it maps to OPCS-4 code G34.4.

The surgeon’s fee is separate from the anesthetist’s and any assistant surgeon’s fee, which each clinician bills directly to the insurer.

The closure of gastrostomy procedure: Clinical overview

Closure of gastrostomy involves three sequential stages that the operative report must document clearly to support the CCSD Code G3440 claim.

1. Access and assessment. The surgeon opens or revisits the gastrostomy site. Granulation tissue and any remnant tract lining are excised back to viable tissue.
2. Gastric wall repair. The stomach opening is closed in two or more layers using absorbable sutures. The mucosa and seromuscular layers are closed separately to achieve a watertight repair.
3. Abdominal wall closure. The fascial layers are approximated, and skin is closed primarily or left to granulate if infection is present. Drain placement is documented if used.

Technique varies by approach. Open cases involve a skin incision around the stoma site. Laparoscopic cases use port access to visualize and close the gastric defect internally before skin closure.

After a simple PEG removal, the tract often closes on its own and no surgery is needed. G3440 applies only when a surgeon performs a formal closure, not when a tube is just removed.

Clinical indications: When G3440 is performed

G3440 is performed when the original reason for the gastrostomy no longer applies and the stoma site requires formal surgical closure. Common clinical indications include:

• Recovery of swallowing function. The patient has completed rehabilitation and can sustain adequate oral intake, making the feeding tube redundant.
• Tube no longer clinically indicated. Change in prognosis, palliative care pathway, or patient refusal of continued enteral feeding.
• Site infection or chronic granulation. Persistent wound breakdown at the stoma site that has failed conservative management and requires formal surgical excision and closure.
• Gastrocutaneous fistula following tube removal. When the tract fails to close spontaneously after tube removal and a fistula persists, surgery is required.
• Tube dislodgement with failed re-siting. If the tube cannot be replaced and the site requires formal closure rather than abandonment.

What CCSD Code G3440 includes and excludes

Knowing the bundled scope of G3440 prevents unbundling errors that draw insurer queries and denials. The table below maps what the code covers and what is billed separately.

Neighboring CCSD codes: Avoiding coding confusion

Several stomach codes in the CCSD schedule describe closely related work, and picking the wrong one is a common query trigger. G3400 forms the stoma that G3440 closes. G3520 and G3580 also close an opening in the stomach wall, but that opening is a perforated ulcer.

Always check descriptors against the current CCSD schedule before submitting. Adjacent code numbers do not guarantee adjacent procedure types, and the schedule is updated periodically. Feeding access formed in the jejunum instead of the stomach sits outside this group and is coded as G6000.

ICD-10 diagnosis codes paired with G3440

UK private medical insurers expect a valid ICD-10 diagnosis code on every CCSD claim. The diagnosis must reflect why the closure was performed, not the condition that led to tube placement. Insurers check diagnosis-procedure alignment, and a mismatched pairing is a common denial trigger.

UK insurers use the WHO edition of ICD-10, not the US ICD-10-CM, so check codes against that edition before submission. When the clinical picture involves several diagnoses, list the primary indication first.

Companion codes billed alongside G3440

Most gastrostomy closures need general anesthesia, so the anesthetist bills their own fee for the same date of service. The surgeon’s claim carries G3440, and the anesthetist sends a separate claim directly to the insurer. Both claims should carry the same patient details, date and authorization reference.

The CCSD technical guide sets the rules for coding several procedures performed on one patient at one time. Three situations come up with G3440:

• Repeat closure. If the closure is reattempted after a failed primary closure, document the indication clearly. Insurers may request the original operative report before they pay.
• Assistant surgeon. A first assistant bills their own fee, and the primary surgeon’s G3440 code is unchanged. Some insurers do not pay assistant fees, so check the policy before quoting the patient.
• Separate fistula repair. A fistula tract that needs its own dissection is coded with an additional CCSD code. The operative report must support it as a distinct procedure.

Confirm billing rules with each insurer before submission. Bupa, AXA Health, Aviva and Vitality each publish their own guidance on how they apply the CCSD schedule.

Pre-authorization requirements from UK insurers

UK private medical insurers classify gastrostomy closure as a planned surgical procedure, so they expect pre-authorization before the operating date. Each insurer runs its own pathway, but the core information requested is consistent.

1. Contact the insurer before surgery. Request authorization through the insurer’s provider portal or phone line once the date is set. Urgent closures may be authorized after the event, but notify the insurer as soon as possible.
2. Submit the clinical details. Provide the patient’s membership or policy number, CCSD code G3440, the ICD-10 diagnosis code and the planned date and facility. Include the consultant’s GMC number and a brief clinical rationale.
3. Record the authorization reference. The insurer issues a reference that must appear on the claim. Claims sent without one are rejected on administrative grounds, whatever their clinical merit.
4. Confirm the patient’s cover. Check any policy excess, benefit limit or exclusion before surgery. Agree any self-pay shortfall with the patient in writing.

Bupa, AXA Health, Aviva, Vitality and WPA each set their own pre-authorization protocols. Our guide to Bupa CCSD codes covers Bupa’s coding structure. The Aviva fee schedule lists its CCSD-coded tariffs.

Documentation requirements: What the operative report must include

UK insurers query G3440 claims against the operative report when the claim looks unusual or a denial pattern triggers a review. A complete report reduces queries and supports resubmission after a denial. It should include these minimum elements:

• Patient identifiers. Full name, date of birth, insurer name and membership or policy number.
• Consultant details. Name, GMC number and the provider number the insurer holds for the consultant.
• Date and facility. Date of procedure, the hospital name, and whether it was a day case or an inpatient stay.
• Clinical indication. Why closure was performed, matching the ICD-10 code on the claim.
• Surgical technique. Whether the procedure was open, laparoscopic or endoscopic, the layers closed, suture materials used and any drain placed.
• Intraoperative findings. Condition of the stoma site, presence of granulation tissue, and any evidence of fistula or infection.
• Estimated blood loss and operative time. Insurers use both to judge the complexity of the procedure.
• Post-operative instructions. Wound care plan, follow-up timing and any restrictions noted at closure.

Why G3440 claims get denied and how to fix them

Denials on G3440 claims follow a predictable pattern. Fixing each root cause before submission is faster than correcting it afterward.

Keep a denial log for G3440 claims and track each reason over a rolling 12-month period. A spike in ICD-10 mismatches usually points to a data-entry step in the billing workflow, not a clinical coding problem.

When a gastrostomy site fistula requires a separate code

Not every gastrostomy site fistula is covered by CCSD Code G3440. The deciding factor is whether the fistula needed work beyond the standard closure steps. The diagram below sets that case beside a simple tube removal and a standard closure.

Simple closure applies when the stoma tract closes as part of the standard takedown. The surgeon excises the tract lining, closes the stomach in layers and closes the abdominal wall. G3440 covers this completely.

A separate code is needed when a persistent gastrocutaneous fistula has formed a discrete epithelialized tract. That tract needs its own dissection, excision and repair. The operative report must then document the fistula as a distinct finding, with the separate dissection plane and closure technique.

Billing the fistula repair under G3440 alone undervalues the surgical work. Billing a fistula code without that documentation triggers an unbundling denial. Check the applicable fistula repair code against the current CCSD schedule before you submit.

How Pabau keeps G3440 claims ready for UK insurers

Many G3440 queries start with details stored in different places. The authorization reference sits in an email, the operative note in a hospital system, and the invoice gets typed up days later.

Pabau, the practice management platform we build, stores the patient’s insurer and policy number on their record. Its claims management software then routes each invoice to the right insurer. Before a claim goes out, Pabau checks that the membership number and authorization code are in place.

A G3440 claim in Pabau follows these steps:

1. Record the patient’s insurer and policy number on their record before the surgery date.
2. Add G3440 and the primary ICD-10 code (for example, Z43.1) to the invoice for the date of surgery.
3. Enter the authorization reference the insurer issued at pre-authorization.
4. Let Pabau check the claim for missing membership numbers or authorization codes.
5. Send the claim through Healthcode, or by email to insurers that accept claims that way.
6. Follow its status in the claims dashboard, from pending to paid or error.

A rejected G3440 claim surfaces straight away in that dashboard. Your team can fix it and resubmit inside the insurer’s window.

Send cleaner G3440 claims to every UK insurer

Pabau keeps the insurer, policy number and authorization code on the patient record, then checks them before each claim goes out through Healthcode. Your team spends less time answering claim queries.

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Conclusion

Choosing G3440 is rarely the hard part. The operative note shows whether the surgeon closed a stoma or repaired a fistula, and the inclusions table settles what you can bill beside it.

The claim is won or lost before the patient reaches the operating room. Confirm the authorization reference, the ICD-10 code and the consultant’s recognition with the insurer before surgery. Then write the operative report against the documentation list above.

Book a demo to see how Pabau checks authorization codes before each G3440 claim reaches the insurer.

Continue your research

Checking what Bupa pays before you quote? Bupa procedure codes and fee schedule lists Bupa’s procedure codes alongside their scheduled fees.

Managing claims across several insurers? Pabau’s claims management software keeps policy numbers and authorization codes on each claim before it is sent.

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