W5800: Conversion of a unicompartmental knee replacement to a total replacement of knee joint
For guidance only. Always check the code and obtain authorisation from your insurer before treatment. Other insurers may use different codes and coding rules.
Also known as
For guidance only. Procedure codes and descriptions on this site are provided for general guidance only and are not a guarantee of insurance cover or payment. Always check the correct code with your surgeon's secretary and obtain authorisation from your insurer before treatment. Insurers shown are examples only. Other insurers are available, and each may use the same, similar or different codes and coding rules.
Insurer listing
| Insurer | Status | Notes |
|---|---|---|
| Bupa | Listed | Listed by Bupa |
| AXA Health | Listed | Listed by AXA Health |
| Vitality | Listed | Listed by Vitality |
| WPA | Check cover | Listed by WPA: check cover at pre-authorisation WPA needs the date and nature of the original operation and the reason for revision. |
Codes that can't be billed with W5800
Neither code can be billed with the other
- W3530: Removal of percutaneous wire
- W5852: Localised patient specific twin knee resurfacing arthroplasty - unilateral
- W5830: Robotic assisted total knee replacement – unilateral +/- cement, +/- patella
- W8500: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - unilateral
- W9030: Injection(s) +/- aspiration, into joint, cyst, bursa with image guidance - unilateral
- W4210: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - unilateral
- W9020: Dynamic arthrogram of joint
- W0850: Partial excision of bone (including exostoses)
- W5821: Robotic assisted unicompartmental knee replacement - bilateral
W5800 can't be billed with
- S4230: Secondary suture of skin
- W0630: Patellectomy
- W2830: Removal of internal fixation from bone / joint, excluding K-wires +/- image guidance
- W3100: Bone graft (as sole procedure)
- W4200: Complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy)
- W4212: Minimally invasive knee replacement +/- cement +/- patella resurfacing - unilateral
- W4230: Revision of total knee replacement – unilateral
- W4240: 2 stage revision of total knee replacement for infection - first stage
- W4242: 2 stage revision of total knee replacement for infection - second stage
- W4280: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - bilateral
- W5201: Unicompartmental Knee Replacement - bilateral
- W5300: Bicompartmental knee resurfacing
- W5722: Excision reconstruction of small joint
- W5723: Excision reconstruction of large joint
- W8580: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - bilateral
- W8700: Diagnostic arthroscopic examination of joint, +/- biopsy (not otherwise specified) (as sole procedure)
- W9040: Injection(s) +/- aspiration, into joint, cyst, bursa - unilateral
- W4214: Customised unicompartmental knee replacement
- W4216: Customised bicompartmental knee replacement
- W4218: Customised total prosthetic replacement of knee joint
- W4244: Tibial liner exchange in total knee replacement
- W5851: Localised patient specific knee resurfacing arthroplasty - unilateral
- W5831: Robotic assisted total knee replacement - bilateral +/- cement, +/- patella
- W4231: Robotic assisted revision of total knee replacement - unilateral
AXA Health also lists these codes as unacceptable combinations (23)
- W2830: Removal of internal fixation from bone / joint, excluding K-wires +/- image guidance
- W5722: Excision reconstruction of small joint
- S4230: Secondary suture of skin
- W4200: Complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy)
- W3100: Bone graft (as sole procedure)
- W4280: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - bilateral
- W4240: 2 stage revision of total knee replacement for infection - first stage
- W9040: Injection(s) +/- aspiration, into joint, cyst, bursa - unilateral
- W5201: Unicompartmental Knee Replacement - bilateral
- W4242: 2 stage revision of total knee replacement for infection - second stage
- W4210: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - unilateral
- W9020: Dynamic arthrogram of joint
- W3530: Removal of percutaneous wire
- W8700: Diagnostic arthroscopic examination of joint, +/- biopsy (not otherwise specified) (as sole procedure)
- W8580: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - bilateral
- W4230: Revision of total knee replacement – unilateral
- W4244: Tibial liner exchange in total knee replacement
- W0850: Partial excision of bone (including exostoses)
- W9030: Injection(s) +/- aspiration, into joint, cyst, bursa with image guidance - unilateral
- W0630: Patellectomy
- W8500: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - unilateral
- W4212: Minimally invasive knee replacement +/- cement +/- patella resurfacing - unilateral
- W5723: Excision reconstruction of large joint
Related codes
- W5201: Unicompartmental Knee Replacement - bilateral
- W5200: Unicompartmental knee replacement - unilateral
- W5210: Revision of unicompartmental knee replacement - unilateral
- W4230: Revision of total knee replacement – unilateral
- W4214: Customised unicompartmental knee replacement
- W5821: Robotic assisted unicompartmental knee replacement - bilateral
Frequently asked questions
What is the procedure code for conversion of a unicompartmental knee replacement to a total replacement of knee joint?
The procedure code is W5800: Conversion of a unicompartmental knee replacement to a total replacement of knee joint.
Which insurers list W5800?
W5800 is listed by Bupa, AXA Health and Vitality. WPA lists it, but you should check cover before treatment. Always confirm the code and cover with your insurer.
Can W5800 be billed with other procedures?
The coding rules say W5800 cannot be billed together with 33 other codes, including W3530 (Removal of percutaneous wire), W5852 (Localised patient specific twin knee resurfacing arthroplasty - unilateral), W5830 (Robotic assisted total knee replacement – unilateral +/- cement, +/- patella). See the full list above.
About the surgeon
Mr Jakub Kozdryk, Consultant Orthopaedic Surgeon, performs hip and knee replacement and revision surgery at Nuffield Health Warwickshire and Circle Meriden Hospital.
Revision knee replacement with Mr Kozdryk →Book an appointment with Mr Kozdryk →
For guidance only. Procedure codes and descriptions on this site are provided for general guidance only and are not a guarantee of insurance cover or payment. Always check the correct code with your surgeon's secretary and obtain authorisation from your insurer before treatment. Insurers shown are examples only. Other insurers are available, and each may use the same, similar or different codes and coding rules.
Codes and descriptions are for guidance only. Insurer listing and cover information is taken from each insurer's published schedule and is for guidance only: always confirm the code and cover with the insurer before treatment. This site is not affiliated with CCSD or any insurer. No fees are shown.
Last checked: 2026-10-01