CCSD code H3332 – Anterior resection – high

Key takeaways

CCSD code H3332 covers an open anterior resection with the colorectal anastomosis above the peritoneal reflection. A join at or below it is H3334.

CCSD is the UK Clinical Coding and Schedule Development Group. Its codes are used to bill UK private medical insurers such as Bupa, AXA Health, Aviva and Vitality.

The operative note must state the anastomosis level relative to the peritoneal reflection. Without it, the insurer can query or reject the claim.

Approach changes the code. A laparoscopic high anterior resection is H3364, and a robotic-assisted one is H3370.

Pabau, the practice management platform we build, tracks H3332 pre-authorization, attaches the operative note and flags incomplete claims before submission.

What CCSD code H3332 covers

CCSD code H3332 covers one defined procedure: An anterior resection of the sigmoid colon or upper rectum, joined above the peritoneal reflection. The official descriptor reads “Anterior resection – high (i.e. colorectal anastomosis above the peritoneal reflection)”. That anatomical qualifier is what makes H3332 a high anterior resection.

When the join sits at or below the reflection, the correct code is H3334, the low anterior resection.

CCSD is the Clinical Coding and Schedule Development Group, which maintains the procedure codes UK private medical insurers use. Bupa, AXA Health, Aviva and Vitality all pay claims against CCSD codes, and practices use them for self-pay invoices too.

Each insurer sets its own fee for H3332, so check the current schedule of the insurer covering the patient. Bupa publishes its rates, and our Bupa fee schedule guide shows where to find them.

In the CCSD schedule, H3332 sits in chapter 11.0.0, Abdomen (excl. urinary & reproductive organs), under category 11.6.0, Rectum/Anus. Its CCSD reference is Fk.081. The code exists because CCSD split the former H3330 “Anterior resection” into two codes by site. H3332 took the high resection, and H3334 took the low one.

To look up neighboring procedures, browse our CCSD code library. For the wider structure, our Bupa CCSD codes guide explains how the schedule is organized and how its chapters relate.

The procedure: What a high anterior resection involves

A high anterior resection removes a segment of sigmoid colon and/or upper rectum. It restores continuity by joining the remaining colon to the upper rectum above the peritoneal reflection. Knowing the steps helps the billing team confirm that the operative note supports H3332 rather than a neighboring code.

1. Mobilization: The sigmoid colon and upper rectum are mobilized by dividing the lateral peritoneal attachments and preserving the autonomic nerve supply where oncologically appropriate.
2. Vascular ligation: The inferior mesenteric artery (and vein) are ligated at the appropriate level depending on the oncological margin required.
3. Resection: The diseased segment is excised using a linear or circular stapler, with the distal division point confirmed to be above the peritoneal reflection.
4. Anastomosis formation: A colorectal anastomosis is fashioned above the peritoneal reflection, typically with a circular stapling device. The anastomosis is tested (commonly with an air-leak or water-immersion test) before abdominal closure.
5. Optional covering stoma: The surgeon may form a defunctioning loop ileostomy in the same operation, particularly when anastomotic integrity is a concern.

The approach decides the code. H3332 is the open operation, while laparoscopic and robotic-assisted cases take their own codes (see the approach section below).

Clinical indications for H3332

The following diagnoses commonly lead to a high anterior resection and support H3332 billing. The primary diagnosis coded on the claim must correspond to the pathology confirmed in histology or operative findings.

High vs low anterior resection: Why the level matters for coding

High and low anterior resections differ in anatomical level, surgical complexity and risk profile. CCSD assigns them separate codes, and billing the wrong one is a known audit trigger. The peritoneal reflection is a documentable landmark, and insurer claims reviewers expect the operative note to reference it.

An operative note that says only “anterior resection”, with no level, leaves the claim open to downgrade or denial. Ask the surgeon for an addendum before submission rather than after a denial arrives.

Approach coding: Open, laparoscopic, and robotic

CCSD gives each approach to a high anterior resection its own code. H3332 is the open operation.

A laparoscopic case is H3364, “Laparoscopic anterior resection – high”, and a robotic-assisted case is H3370, “Robotic assisted high anterior resection of rectum +/- stoma”. A minimally invasive case billed as H3332 is miscoded, even where the fee happens to match. Three questions about the operation lead to the right code, as the diagram below shows.

The operative note must state the approach used, because insurers can pay a different fee for each approach code. Three points apply to every case:

• State the approach explicitly: Write “laparoscopic anterior resection” or “robotic-assisted anterior resection with da Vinci system”. A bare “anterior resection” leaves the insurer guessing.
• Match the code to the approach: Use H3332 for open, H3364 for laparoscopic and H3370 for robotic-assisted surgery. H3370 already covers a stoma, so never add a separate stoma code to it.
• Record any conversion: If a laparoscopic or robotic case converts to open, record the point of conversion and the reason. Then confirm with the insurer which code it wants for that claim.

ICD-10 diagnosis codes commonly paired with H3332

UK private medical insurers expect an ICD-10 diagnosis code alongside the CCSD procedure code. The WHO ICD-10 browser provides the authoritative international classification. The codes below are the diagnoses most often paired with H3332. The principal diagnosis must match the confirmed pathology, so never select a code without supporting histology, imaging or operative findings.

This list is guidance only. The correct ICD-10 code is always determined by the patient’s confirmed pathology. Insurers may ask for proof that the coded diagnosis justified the procedure.

A mismatch between diagnosis site and procedure site is common grounds for denial. UK claims use the WHO edition of ICD-10, so check code descriptions in the WHO browser rather than a US ICD-10-CM lookup.

Neighboring CCSD codes: What else to bill and what to avoid

H3332 includes the principal colorectal resection and anastomosis. Some procedures in the same operative session attract a separate CCSD code. Others are part of the H3332 work and must not be billed on top. Unbundling means billing separately for work already included in H3332, and it is an audit risk. The CCSD technical guide sets out the general unbundling principles.

Two other open-approach codes are easily confused with H3332. H3334 covers the low resection, with the join at or below the peritoneal reflection. H3320 covers an abdominoperineal resection of rectum and anus, where no anastomosis is formed and the patient leaves with a permanent colostomy.

Pre-authorization requirements for H3332

UK private medical insurers expect pre-authorization before an elective high anterior resection. Bupa, AXA Health, Aviva and Vitality each run their own process and forms. Operating without authorization is one of the most preventable reasons an H3332 claim fails. Self-pay patients need no pre-authorization, but their invoice should still carry the CCSD code.

Good UK medical billing software records the authorization number against each admission. That stops a claim reaching submission without one.

1. Gather supporting clinical documentation: Collect the endoscopy report (colonoscopy findings and biopsies) and the histology report. Add staging imaging (CT of chest, abdomen, and pelvis for oncology cases) and a referral letter confirming the indication. For cancer cases, include the multidisciplinary team’s recommendation for resection.
2. Submit the request to the insurer: Include the code for the planned approach (H3332 for open), the ICD-10 code, the planned date and the hospital. Bupa codes can be checked on the Bupa procedure code search.
3. Confirm the authorization number: Do not go ahead with elective surgery without it. Save it in the patient’s file and quote it on the invoice.
4. Urgent or emergency cases: Contact the insurer as soon as possible after surgery and record the clinical urgency in the notes. Insurers set their own rules for unplanned admissions, so check the policy rather than assume retrospective cover.

Documentation requirements: What the operative note must contain

The operative note is the primary evidence that an H3332 claim is valid. An insurer’s claims reviewer looks for one point above all others: Confirmation that the anastomosis was formed above the peritoneal reflection.

A note that does not state this leaves the claim open to challenge, even when the surgeon performed exactly the right procedure. A digital operative note template captures the same fields on every surgical case.

The operative note for an H3332 claim should contain all of the following elements:

• Explicit level statement: A sentence confirming the colorectal anastomosis was fashioned above the peritoneal reflection. For example: “The circular stapled anastomosis was completed at approximately 15 cm from the anal verge, above the peritoneal reflection.”
• Approach documented: Open, laparoscopic or robotic-assisted, stated clearly rather than implied.
• Resection extent: Which segments were resected (sigmoid colon, rectosigmoid junction, upper rectum).
• Anastomosis method: Technique used (circular stapler size, end-to-end or end-to-side configuration).
• Integrity testing result: Whether an air-leak or water-immersion test was performed and the result (e.g. “Air-leak test negative”).
• Covering stoma decision: Whether a defunctioning ileostomy was formed, and if so the type and technique (loop vs end, right vs left ileum).
• Specimen details: Distance to surgical margins, whether the peritoneum was breached, and correlation to the pre-operative imaging.

A well-documented operative note does two jobs at once. It supports the H3332 claim, and it gives the pathologist what they need to correlate the specimen. Poor documentation is rarely deliberate. It usually comes from time pressure on a busy operating list. A standardized template that prompts the surgeon for these elements cuts the corrections billing staff have to chase.

Common claim denial reasons for H3332 and how to avoid them

H3332 claims are denied for a predictable set of reasons. Most are preventable before submission. The rest are recoverable on appeal with the right documentation.

Billing workflow for H3332: From surgery to remittance

This workflow covers the administrative cycle for an H3332 claim, from the day surgery is booked through to payment. Pabau, the practice software we build, tracks each step in its surgical claims management software and flags incomplete claims before submission.

1. Before surgery (week before admission): Confirm the ICD-10 diagnosis code and obtain pre-authorization, recording the number in the patient’s file. Check the policy covers inpatient colorectal surgery at the treating hospital.
2. Day of surgery: Confirm the approach (open, laparoscopic or robotic) and whether a defunctioning stoma was formed. Together they decide the procedure code and any companion code. Collect the anesthetist’s details for their separate claim.
3. After surgery: Obtain the signed operative note. Review it for the anastomosis level statement. If the level is not explicitly stated, contact the surgeon for an addendum before the claim is prepared.
4. Code selection: Assign H3332 as the principal CCSD code for an open high resection. Add a stoma code if one was formed, after checking it against the current CCSD schedule. Match the ICD-10 code to histology or confirmed operative findings.
5. Claim submission: Submit to the insurer, usually electronically through Healthcode, with the authorization number, CCSD code(s), ICD-10 code(s) and operative note. Keep a copy of the submitted claim with a date-stamp.
6. Tracking and follow-up: Monitor the claim status. Follow up unacknowledged claims directly with the insurer. A remittance advice that shows a partial payment warrants investigation before acceptance.
7. Denial management: Identify the denial reason from the remittance advice. Gather the corrective documentation (addendum, corrected code, histology) and submit the appeal within the insurer’s deadline.

Keeping the surgical record and the claim status in one system stops a claim stalling unnoticed at any stage.

How Pabau supports surgical billing workflows

An H3332 claim depends on a chain of steps: Pre-authorization, operative notes, pathology, code selection and claim tracking. Those steps pass between several staff members over several days. Pabau keeps that chain in one system for UK private surgical practices.

The authorization number sits against each admission, and the operative note attaches straight to the patient record before the claim is prepared. Outstanding insurer claims stay visible in the billing dashboard, so none of them ages without action.

A demo walks through the billing workflow for insurer and self-pay surgical claims.

Streamline your surgical billing workflow

Pabau helps UK private surgical practices track pre-authorization, attach operative documentation and follow up insurer claims in one platform. See how it handles H3332 and similar complex procedure claims.

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Conclusion

H3332 fits one operation only: An open anterior resection with the join above the peritoneal reflection. Change the level and the claim needs H3334. Change the approach and it needs H3364 or H3370.

So make the operative note do the coding work. A note that names the level and the approach, with a matching WHO ICD-10 code and an authorization number, gives the insurer nothing to query.

Pabau keeps pre-authorization tracking, operative documentation and insurer claim follow-up in one place. Book a demo to see how it supports UK private surgical billing.

Continue your research

Coding a join at or below the peritoneal reflection? CCSD code H3334 covers the low anterior resection, its approach variants and the TME codes.

Need a guide to how CCSD codes are structured? Our Bupa CCSD codes guide explains how the schedule is organized and how Bupa applies it.

Checking what Bupa pays for colorectal codes? The Bupa procedure codes and fee schedule guide links each code to its published fee.

Choosing software to bill UK insurers? Our roundup of the best medical billing software in the UK compares tools for insurer claims, invoicing and payment tracking.

Want to reduce claim errors across your surgical practice? Surgical claims management covers how Pabau tracks procedure codes, pre-authorization and claim follow-up in one place.

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