W0850: Partial excision of bone (including exostoses)
Current codeBody area: Bone (general)
For guidance only. Always check the code and obtain authorisation from your insurer before treatment. Other insurers may use different codes and coding rules.
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 W0850
Neither code can be billed with the other
- T6462: Excision or partial excision of interphalangeal joint of lesser toe with tendon transfer
- T7910: Open subacromial decompression and rotator cuff repair +/- excision of distal clavicle
- W0321: Osteotomies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - unilateral
- W0322: Osteotomies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - bilateral
- W0950: Radical clearance of sarcoma of trunk or limbs, +/- amputation or insertion of prosthesis
- W0961: Radical clearance of benign bone tumour with reconstruction +/- insertion of prosthesis
- W1380: Arthroscopic femoro-acetabular surgery for hip impingement syndrome, including labral repair and osteochondroplasty
- W1641: Osteotomy of short bone of hand (including fixation and bone grafting)
- W1648: Osteotomy/transfer of greater trochanter (as sole procedure)
- W1800: Drainage/debridement of bone(s) (including sequestrectomy for osteomyelitis)
- W3620: Open bone biopsy as sole procedure
- W3622: Needle biopsy of bone as sole procedure
- W3712: Primary total hip replacement – unilateral +/- cement
- W3713: Complex primary total hip replacement (including bone grafting or femoral osteotomy)
- W3714: Total hip replacement, +/- cement, after excision arthroplasty or arthrodesis (including conversion of hemiarthroplasty or revision of other previous hip surgery which involved internal fixation)
- W3715: Hip resurfacing arthroplasty
- W3720: Robotic assisted total hip replacement - unilateral +/- cement
- W3721: Robotic assisted total hip replacement - bilateral +/- cement
- W3732: Revision of uncemented or cemented total hip replacement without adjunctive procedures - unilateral
- W3733: Revision of total hip replacement (including insertion of reconstruction rings, plates, screws, etc., and/or impaction bone grafting to acetabulum and/or femur) - unilateral
- W3744: Robotic assisted revision of total hip replacement - unilateral
- W3745: Robotic assisted revision of total hip replacement (inclduing insertion of reconstruction rings, plates, screws +/- impaction bonegrafting to acetabulum +/- femur) - unilateral
- W3751: Customised unilateral hip replacement
- W3780: Total prosthetic replacement of the hip, +/- cement, bilateral
- W4200: Complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy)
- W4210: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - unilateral
- W4244: Tibial liner exchange in total knee replacement
- W5550: Excision of radial head (as sole procedure)
- W5700: Excision arthroplasty of first metatarsophalangeal joint with prosthetic implantation or interpositional arthroplasty - unilateral
- W5701: Excision arthroplasty of first metatarsophalangeal joint with prosthetic implantation or interpositional arthroplasty - bilateral
- W5710: Excision arthroplasty of first metatarsophalangeal joint (eg Keller, Bonney-Kessel procedures) including cheilectomy - unilateral
- W5780: Excision arthroplasty of first metatarsophalangeal joint (eg Keller, Bonney-Kessel procedures) including cheilectomy - bilateral
- W5800: Conversion of a unicompartmental knee replacement to a total replacement of knee joint
- W5830: Robotic assisted total knee replacement – unilateral +/- cement, +/- patella
- W5831: Robotic assisted total knee replacement - bilateral +/- cement, +/- patella
- W7420: Autograft anterior cruciate ligament reconstruction without lateral tenodesis +/- meniscectomy
- W7860: Arthroscopic arthrolysis of elbow (as sole procedure)
- W7921: Surgical correction of hallux valgus using minimal access techniques- bilateral
- W7922: Surgical correction of hallux valgus using minimal access techniques- unilateral
- W7980: Metatarsal osteotomy (eg Scarf) for hallux valgus, +/- internal fixation +/- soft tissue correction - bilateral
- W8500: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - unilateral
- W8580: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - bilateral
- W8603: Therapeutic arthroscopy of shoulder (as sole procedure)
- W8620: Therapeutic arthroscopy examination of hip joint, +/- biopsy
- W8646: Multiple arthroscopic operations on ankle (including soft tissue +/- bony +/- joint surface procedures) without ligament reconstruction
- W8820: Diagnostic arthroscopic examination of shoulder joint, +/- biopsy (as sole procedure)
- T7916: Arthroscopic rotator cuff repair greater than 2cm with tenodesis of biceps tendon
- T7918: Arthroscopic rotator cuff repair using a biodegradable collagen based scaffold
- W0323: Revision of osteotomy/ies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - unilateral
- W0324: Revision of osteotomy/ies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - bilateral
- W7910: Metatarsal osteotomy (e.g. Scarf) for hallux vagus, +/- internal fixation +/- soft tissue correction - unilateral
W0850 can't be billed with
- T7915: Arthroscopic rotator cuff repair greater than 2cm
- T7942: Arthroscopic rotator cuff repair using acellular dermal matrix (ADM) - second stage
- T7981: Extensive (greater than 2cm tear) repair of large muscle (including arthroscopic) (excluding rotator cuff)
- T7982: Arthroscopic subacromial decompression and rotator cuff repair (including arthroscopic procedures in glenohumeral joint)
- T7941: Arthroscopic rotator cuff repair using acellular dermal matrix (ADM) - first stage
AXA Health also lists these codes as unacceptable combinations (50)
- W3712: Primary total hip replacement – unilateral +/- cement
- W0324: Revision of osteotomy/ies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - bilateral
- W1641: Osteotomy of short bone of hand (including fixation and bone grafting)
- W5710: Excision arthroplasty of first metatarsophalangeal joint (eg Keller, Bonney-Kessel procedures) including cheilectomy - unilateral
- S5210: Injection into subcutaneous tissue/painful trigger point under local anaesthetic
- W8620: Therapeutic arthroscopy examination of hip joint, +/- biopsy
- T7981: Extensive (greater than 2cm tear) repair of large muscle (including arthroscopic) (excluding rotator cuff)
- W3714: Total hip replacement, +/- cement, after excision arthroplasty or arthrodesis (including conversion of hemiarthroplasty or revision of other previous hip surgery which involved internal fixation)
- W0632: Prosthetic patello-femoral replacement (as sole procedure) – unilateral
- W3715: Hip resurfacing arthroplasty
- W0861: Metatarsophalangeal cheilectomy - bilateral, as sole procedure
- W8600: Therapeutic arthroscopy operation on cavity of joint (not otherwise specified) (as sole procedure)
- W1800: Drainage/debridement of bone(s) (including sequestrectomy for osteomyelitis)
- W3780: Total prosthetic replacement of the hip, +/- cement, bilateral
- W3733: Revision of total hip replacement (including insertion of reconstruction rings, plates, screws, etc., and/or impaction bone grafting to acetabulum and/or femur) - unilateral
- W0322: Osteotomies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - bilateral
- W3734: Second, third or further revision total hip replacement (excluding acetabular liner and head changes)
- W4210: Total prosthetic replacement of knee joint +/- cement +/- patella resurfacing - unilateral
- W0323: Revision of osteotomy/ies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - unilateral
- W8602: Therapeutic arthroscopy of wrist joint (as sole procedure)
- W8500: Multiple arthroscopic operations on knee (including meniscectomy, chondroplasty, drilling or microfracture) - unilateral
- W7910: Metatarsal osteotomy (e.g. Scarf) for hallux vagus, +/- internal fixation +/- soft tissue correction - unilateral
- W7860: Arthroscopic arthrolysis of elbow (as sole procedure)
- T7910: Open subacromial decompression and rotator cuff repair +/- excision of distal clavicle
- W8880: Arthroscopy of elbow (as sole procedure)
- W3620: Open bone biopsy as sole procedure
- W3713: Complex primary total hip replacement (including bone grafting or femoral osteotomy)
- W8820: Diagnostic arthroscopic examination of shoulder joint, +/- biopsy (as sole procedure)
- W0961: Radical clearance of benign bone tumour with reconstruction +/- insertion of prosthesis
- W4200: Complex primary total knee replacement (i.e. including bone graft, augmentation or osteotomy)
- W8300: Therapeutic arthroscopy operation on articular cartilage (other than W8200) - unilateral (as sole procedure)
- W5780: Excision arthroplasty of first metatarsophalangeal joint (eg Keller, Bonney-Kessel procedures) including cheilectomy - bilateral
- W3622: Needle biopsy of bone as sole procedure
- W0321: Osteotomies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - unilateral
- W8830: Diagnostic arthroscopic examination of wrist joint, +/- biopsy (as sole procedure)
- X4822: Change of cast under general anaesthetic (as sole procedure)
- W1380: Arthroscopic femoro-acetabular surgery for hip impingement syndrome, including labral repair and osteochondroplasty
- W7420: Autograft anterior cruciate ligament reconstruction without lateral tenodesis +/- meniscectomy
- W5700: Excision arthroplasty of first metatarsophalangeal joint with prosthetic implantation or interpositional arthroplasty - unilateral
- T7916: Arthroscopic rotator cuff repair greater than 2cm with tenodesis of biceps tendon
- W5701: Excision arthroplasty of first metatarsophalangeal joint with prosthetic implantation or interpositional arthroplasty - bilateral
- W0950: Radical clearance of sarcoma of trunk or limbs, +/- amputation or insertion of prosthesis
- T6580: Tendon graft, or tendon transfer (as sole procedure, not otherwise specified)
- W7922: Surgical correction of hallux valgus using minimal access techniques- unilateral
- W8640: Complex therapeutic arthroscopy of ankle, with multiple bony, joint surface and soft tissue procedures +/- ligament reconstruction (as sole procedure)
- T7915: Arthroscopic rotator cuff repair greater than 2cm
- T6462: Excision or partial excision of interphalangeal joint of lesser toe with tendon transfer
- W3732: Revision of uncemented or cemented total hip replacement without adjunctive procedures - unilateral
- W0860: Metatarsophalangeal cheilectomy (as sole procedure) - unilateral
- T7982: Arthroscopic subacromial decompression and rotator cuff repair (including arthroscopic procedures in glenohumeral joint)
Related codes
Frequently asked questions
What is the procedure code for partial excision of bone (including exostoses)?
The procedure code is W0850: Partial excision of bone (including exostoses).
Which insurers list W0850?
W0850 is listed by Bupa, AXA Health, Vitality and WPA. Always confirm the code and cover with your insurer.
Can W0850 be billed with other procedures?
The coding rules say W0850 cannot be billed together with 56 other codes, including T6462 (Excision or partial excision of interphalangeal joint of lesser toe with tendon transfer), T7910 (Open subacromial decompression and rotator cuff repair +/- excision of distal clavicle), W0321 (Osteotomies (eg Scarf and Akin) for hallux valgus correction +/- internal fixation +/- soft tissue correction - unilateral). 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