W4200: Complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy)
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 | Listed | Listed by WPA |
Codes that can't be billed with W4200
Neither code can be billed with the other
- W4240: 2 stage revision of total knee replacement for infection - first stage
- S4230: Secondary suture of skin
- W4242: 2 stage revision of total knee replacement for infection - second stage
- W4280: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - bilateral
- W8700: Diagnostic arthroscopic examination of joint, +/- biopsy (not otherwise specified) (as sole procedure)
- W2830: Removal of internal fixation from bone / joint, excluding K-wires +/- image guidance
- W0630: Patellectomy
- W4230: Revision of total knee replacement – unilateral
- W5722: Excision reconstruction of small joint
- W5723: Excision reconstruction of large joint
- W3100: Bone graft (as sole procedure)
- W9240: Examination/ manipulation of joint under general anaesthetic +/- injection +/- arthrogram (as sole procedure)
- W9040: Injection(s) +/- aspiration, into joint, cyst, bursa - unilateral
- 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
- W5200: Unicompartmental knee replacement - unilateral
- W4210: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - unilateral
- W9020: Dynamic arthrogram of joint
- W5822: Robotic assisted revision of unicompartmental knee replacement - unilateral
- W0850: Partial excision of bone (including exostoses)
W4200 can't be billed with
- W8580: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - bilateral
- W5210: Revision of unicompartmental knee replacement - unilateral
- W5800: Conversion of a unicompartmental knee replacement to a total replacement of knee joint
- W4214: Customised unicompartmental knee replacement
- W4216: Customised bicompartmental knee replacement
- W4218: Customised total prosthetic replacement of knee joint
- 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
- W7580: Open surgical stabilisation of patella, including soft tissue/tendon transfer or release, +/- application of cast (adult)
AXA Health also lists these codes as unacceptable combinations (27)
- W0630: Patellectomy
- A5210: Epidural injection (lumbar)
- W7580: Open surgical stabilisation of patella, including soft tissue/tendon transfer or release, +/- application of cast (adult)
- W3100: Bone graft (as sole procedure)
- W9240: Examination/ manipulation of joint under general anaesthetic +/- injection +/- arthrogram (as sole procedure)
- W4280: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - bilateral
- W5200: Unicompartmental knee replacement - unilateral
- W0850: Partial excision of bone (including exostoses)
- W3530: Removal of percutaneous wire
- A7350: Local anaesthetic blockade of named major nerve or plexus
- W9020: Dynamic arthrogram of joint
- W4210: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - unilateral
- W5723: Excision reconstruction of large joint
- W4240: 2 stage revision of total knee replacement for infection - first stage
- W8700: Diagnostic arthroscopic examination of joint, +/- biopsy (not otherwise specified) (as sole procedure)
- W4230: Revision of total knee replacement – unilateral
- W5800: Conversion of a unicompartmental knee replacement to a total replacement of knee joint
- W4242: 2 stage revision of total knee replacement for infection - second stage
- 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
- W5722: Excision reconstruction of small joint
- W2830: Removal of internal fixation from bone / joint, excluding K-wires +/- image guidance
- W9040: Injection(s) +/- aspiration, into joint, cyst, bursa - unilateral
- W5210: Revision of unicompartmental knee replacement - unilateral
- A5230: Epidurogram +/- epidural injection
- A5220: Epidural injection (thoracic)
- S4230: Secondary suture of skin
Related codes
- W4230: Revision of total knee replacement – unilateral
- W5800: Conversion of a unicompartmental knee replacement to a total replacement of knee joint
- W4218: Customised total prosthetic replacement of knee joint
- W4244: Tibial liner exchange in total knee replacement
- W4231: Robotic assisted revision of total knee replacement - unilateral
- W5831: Robotic assisted total knee replacement - bilateral +/- cement, +/- patella
Frequently asked questions
What is the procedure code for complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy)?
The procedure code is W4200: Complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy).
Which insurers list W4200?
W4200 is listed by Bupa, AXA Health, Vitality and WPA. Always confirm the code and cover with your insurer.
Can W4200 be billed with other procedures?
The coding rules say W4200 cannot be billed together with 32 other codes, including W4240 (2 stage revision of total knee replacement for infection - first stage), S4230 (Secondary suture of skin), W4242 (2 stage revision of total knee replacement for infection - second stage). 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.
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