W0420: Triple fusion of joints of hindfoot without autogenous graft
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 |
Codes that can't be billed with W0420
Neither code can be billed with the other
AXA Health also lists these codes as unacceptable combinations (5)
- W0422: Triple fusion of joints of hindfoot with autogenous graft
- X4822: Change of cast under general anaesthetic (as sole procedure)
- W3100: Bone graft (as sole procedure)
- A7350: Local anaesthetic blockade of named major nerve or plexus
- X4810: Change of cast without general anaesthetic (as sole procedure)
Related codes
- W0422: Triple fusion of joints of hindfoot with autogenous graft
- W0434: Isolated subtalar fusion or midfoot fusion without autogenous graft
- W0463: Complex procedure to mid foot and hindfoot without autogenous bone graft (osteotomy/fusion +/- tendon transfers/fixation)
- W0460: Complex procedure to mid foot or hindfoot without autogenous bone graft (osteotomy/fusion +/- tendon transfers)
- W0432: Isolated subtalar fusion or midfoot fusion with autogenous graft
- W0464: Complex procedure to mid foot and hindfoot with autogenous bone graft (osteotomy/fusion +/- tendon transfers, fixation)
Frequently asked questions
What is the procedure code for triple fusion of joints of hindfoot without autogenous graft?
The procedure code is W0420: Triple fusion of joints of hindfoot without autogenous graft.
Which insurers list W0420?
W0420 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 W0420 be billed with other procedures?
The coding rules say W0420 cannot be billed together with 4 other codes, including W0422 (Triple fusion of joints of hindfoot with autogenous graft), X4810 (Change of cast without general anaesthetic (as sole procedure)), X4822 (Change of cast under general anaesthetic (as sole procedure)). See the full list above.
What does my procedure code mean?
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