CCSD code N1510 – Bilateral epididymectomy
N1510 is the CCSD code for bilateral epididymectomy, the removal of both epididymides in one operation with the testes left in place. UK private medical insurers and Healthcode use it to identify the surgeon's fee for this procedure.
One code covers both sides. Unilateral epididymectomy is N1520, and excision of an epididymal cyst alone is N1580. Anaesthesia, assistant surgeon and histology fees are billed separately.
- Group
- 12 Urinary system and male reproductive organs
- Category
- Genitalia
- Sub-chapter
- 12.6 Genitalia
- Billable
- No
- Code also known as
- epididymal excision, bilateral epididymal surgery, epididymis removal surgery
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Key takeaways
CCSD Code N1510 is bilateral epididymectomy: both epididymides removed in one operation, with the testes left in place.
One N1510 line covers both sides. Never bill the unilateral code, N1520, twice for a two-sided operation.
Excision of an epididymal cyst alone is N1580, and removal of a testis takes an orchidectomy code instead.
UK private medical insurers usually require pre-authorisation for elective epididymectomy, so check the patient’s policy before the theatre date.
Pabau, our practice management software, sends CCSD-coded invoices through Healthcode and tracks each one to payment.
What is CCSD Code N1510?
CCSD Code N1510 is the Clinical Coding and Schedule Development (CCSD) code for bilateral epididymectomy. A urological surgeon removes the epididymis on each side in one operative session and leaves both testes in place.
The CCSD Schedule is the standard set of procedure and diagnostic test codes for the UK private healthcare sector. It is maintained by the CCSD Group of four private medical insurers: Aviva, AXA Health, Bupa and Vitality. Healthcode, the main electronic billing clearinghouse for UK private practice, expects the correct CCSD code on every invoice.
N1510 sits in chapter 12 of the schedule, urinary system and male reproductive organs, under sub-chapter 12.6, genitalia. Its structure follows OPCS-4 code N15.1, the NHS classification for the same operation. Our CCSD codes library lists the neighbouring procedures.
The bilateral epididymectomy procedure
Bilateral epididymectomy is usually a day-case or short-stay operation under general or spinal anaesthesia. The surgeon works through an incision on each side of the scrotum, or through a single midline scrotal incision.
- Access: The surgeon opens the scrotum and delivers each testis with its epididymis into the wound.
- Dissection: Each epididymis is freed from the testis, and the vas deferens is divided where it joins the tail. The testicular blood supply is protected.
- Excision: Each epididymis is removed in full, from head to tail.
- Haemostasis and closure: Bleeding is controlled and each side is closed in layers.
- Specimens: The left and right epididymis go to histology in separately labelled pots.
The steps are the same on each side, which is why the operative note has to say plainly that both epididymides came out. A note that names only one side supports N1520 only.
Clinical indications and ICD-10 codes to pair with N1510
N1510 is the right code when the operative note confirms bilateral epididymectomy for a documented indication. UK private claims report the diagnosis in WHO ICD-10, so the table uses WHO codes rather than the US ICD-10-CM set.
Insurers usually want evidence that conservative treatment failed before they approve surgery. Record antibiotic courses, their dates and the response, and explain why both sides need surgery. Check each code in the WHO ICD-10 browser before submission.
What CCSD Code N1510 includes and excludes
Bundling rules decide what the N1510 fee pays for. Getting them right prevents undercoding, which loses revenue, and overcoding, which creates audit risk.
Related CCSD codes: Avoiding common coding errors
Several codes in the genitalia sub-chapter sit close to N1510. Varicocele surgery sits in the same sub-chapter, and an open ligation of the spermatic cord veins is billed under CCSD code N1900. The table maps the ones coders mix up most often, with each descriptor as the schedule lists it.
Laterality causes most errors in this family. When a note describes epididymectomy without naming a side, ask the surgeon before choosing between N1520 and N1510. When only cysts came out, N1580 applies instead. The ladder below rules out the neighbouring codes in the order a coder should check them.

Bilateral billing: Does N1510 already include both sides?
Yes. The word “bilateral” is part of the N1510 descriptor, so one line on the invoice pays for both sides. No bilateral modifier or second line is added.
The fee reflects the extra work. Bupa’s February 2026 schedule places N1510 in band Intermediate 5, three bands above Intermediate 2 for N1520. Other insurers set their own fees for the same code, so check each insurer’s current schedule, such as Bupa code search.
Documentation requirements for an N1510 claim
An N1510 claim stands or falls on the operative note. Insurers auditing a paid claim look for the items below, so the note should carry each one.
- Bilateral statement: Name the procedure as bilateral epididymectomy and confirm that both epididymides were removed.
- Testes preserved: Record that both testes remain in situ.
- Findings on each side: Describe the left and right epididymis separately, including any cysts, scarring or induration.
- Clinical indication: State the diagnosis in words that match the ICD-10 code on the invoice.
- Specimens: Record two specimens sent to histology, labelled left and right.
- Surgeon details: Include the surgeon’s name, the date and their GMC number.
- Pre-authorisation reference: Copy the insurer’s reference into the note and onto the invoice.
Keep the consent form, anaesthetic record and histology report with the note. Clinical records management software holds them on one patient file, ready for an insurer query.

Pre-authorisation with UK private medical insurers
Most UK private medical insurers ask for pre-authorisation before elective surgery, and bilateral epididymectomy is usually elective. The patient normally contacts their insurer for an authorisation number once the consultant has recommended surgery.
Requirements differ between insurers and between policies. Confirm these points before the theatre date:
- The authorisation covers N1510 itself, not N1520 or a general urology code.
- The policy covers the indication and does not exclude it as a pre-existing condition.
- The insurer’s fee for N1510, and whether the patient faces a shortfall.
- The ICD-10 code on the authorisation matches the one planned for the invoice.
For Bupa’s codes and fee bands, see our Bupa CCSD codes guide. For other insurers, check the provider portal or ask the insurer’s authorisation team.
Pro Tip
Hold an N1510 invoice until the pre-authorisation reference is in the patient file. If the theatre date moves, confirm the authorisation is still valid for the new date before the operation goes ahead.
Common reasons N1510 claims are denied
N1510 denials follow a short, predictable list. Each one below has a known fix.
- Missing pre-authorisation: The invoice has no insurer reference. Ask whether the insurer accepts a retrospective request, and send a letter of medical necessity with it.
- Bilateral excision not confirmed: The note does not say both epididymides came out. Request an addendum from the surgeon and resubmit with it.
- N1520 billed twice: Two unilateral lines went in for one operation. Cancel them and submit a single N1510 line.
- Mismatched ICD-10 code: The diagnosis on the invoice differs from the note or the authorisation. Correct the code and resubmit.
- Fees combined on one line: Anaesthetic or assistant fees were added to the surgeon’s N1510 line. Split them so each provider bills separately.
- Policy exclusion: The insurer treats the condition as pre-existing. Send evidence of when symptoms started relative to the policy start date.
How Pabau supports CCSD billing for urology procedures
Private urologists billing N1510 need the note, the authorisation and the invoice to agree before the claim leaves the practice. Pabau’s claims management software sends CCSD-coded invoices to UK insurers through Healthcode. Your team then tracks each claim and reconciles the insurer’s payment in one place.

Clinical records sit in the same patient file as the claim. When an insurer queries a paid N1510 invoice, the operative note and histology report are already attached to the patient.
Manage CCSD billing from authorisation to payment
Pabau sends CCSD-coded claims through Healthcode, then tracks and reconciles them. Urology consultants and their billing teams keep claims and clinical records in one platform.

Conclusion
On N1510, a single word in the operative note decides the fee. If the note says “bilateral” and records both epididymides removed with the testes preserved, one N1510 line pays for the operation. If it does not, the claim falls back to N1520 or returns for an addendum.
So before the invoice goes out, check the bilateral statement, the authorisation reference and an ICD-10 code that matches both. Practices weighing up platforms for this work can compare options in our guide to UK medical billing software.
Book a demo to see how Pabau sends CCSD claims through Healthcode with the operative note beside each one.
Continue your research
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Frequently asked questions
What does CCSD Code N1510 cover?
CCSD Code N1510 covers bilateral epididymectomy, the removal of both epididymides in one operation with the testes left in place. It is the surgeon’s fee code in the UK private healthcare schedule. Anaesthesia, assistant surgeon and histology fees are billed separately.
Which ICD-10 codes pair with CCSD N1510?
UK private claims use WHO ICD-10. The usual pairings are N45.9 for epididymitis or epididymo-orchitis without abscess, N45.0 with abscess, and N43.4 for spermatocele. N50.8 covers post-vasectomy pain, and D29.3 a benign epididymal tumour.
Does N1510 need pre-authorisation from a UK insurer?
Usually, yes. Most UK private medical insurers require pre-authorisation for elective surgery, including bilateral epididymectomy. Requirements vary by insurer and policy, so get the reference number before the theatre date and put it on the invoice.
Can I bill N1520 twice instead of N1510?
No. N1520 is unilateral epididymectomy, so two N1520 lines for one operation is incorrect coding. Bill a single N1510 line when both epididymides are removed in the same session.
What is the difference between N1510 and an orchidectomy code?
N1510 removes both epididymides and leaves the testes in place. Orchidectomy codes, such as N0500 for bilateral excision of testes, remove the testis itself. Coding one as the other is miscoding and invites an audit.
What are the most common reasons N1510 claims are denied?
The most common are a missing pre-authorisation reference and an operative note that does not confirm both sides. Two N1520 lines in place of N1510 and a mismatched ICD-10 code follow. Most are fixed with an addendum or a corrected invoice.



