| 84.00 | Upper limb amputation, not otherwise specified |
| 84.01 | Amputation and disarticulation of finger |
| 84.02 | Amputation and disarticulation of thumb |
| 84.03 | Amputation through hand |
| 84.04 | Disarticulation of wrist |
| 84.05 | Amputation through forearm |
| 84.06 | Disarticulation of elbow |
| 84.07 | Amputation through humerus |
| 84.08 | Disarticulation of shoulder |
| 84.09 | Interthoracoscapular amputation |
| 84.10 | Lower limb amputation, not otherwise specified |
| 84.11 | Amputation of toe |
| 84.12 | Amputation through foot |
| 84.13 | Disarticulation of ankle |
| 84.14 | Amputation of ankle through malleoli of tibia and fibula |
| 84.15 | Other amputation below knee |
| 84.16 | Disarticulation of knee |
| 84.17 | Amputation above knee |
| 84.18 | Disarticulation of hip |
| 84.19 | Abdominopelvic amputation |
| 84.21 | Thumb reattachment |
| 84.22 | Finger reattachment |
| 84.23 | Forearm, wrist, or hand reattachment |
| 84.24 | Upper arm reattachment |
| 84.25 | Toe reattachment |
| 84.26 | Foot reattachment |
| 84.27 | Lower leg or ankle reattachment |
| 84.28 | Thigh reattachment |
| 84.29 | Other reattachment of extremity |
| 84.3 | Revision of amputation stump |
| 84.40 | Implantation or fitting of prosthetic limb device, not otherwise specified |
| 84.41 | Fitting of prosthesis of upper arm and shoulder |
| 84.42 | Fitting of prosthesis of lower arm and hand |
| 84.43 | Fitting of prosthesis of arm, not otherwise specified |
| 84.44 | Implantation of prosthetic device of arm |
| 84.45 | Fitting of prosthesis above knee |
| 84.46 | Fitting of prosthesis below knee |
| 84.47 | Fitting of prosthesis of leg, not otherwise specified |
| 84.48 | Implantation of prosthetic device of leg |
| 84.51 | Insertion of interbody spinal fusion device |
| 84.52 | Insertion of recombinant bone morphogenetic protein |
| 84.53 | Implantation of internal limb lengthening device with kinetic distraction |
| 84.54 | Implantation of other internal limb lengthening device |
| 84.55 | Insertion of bone void filler |
| 84.56 | Insertion or replacement of (cement) spacer |
| 84.57 | Removal of (cement) spacer |
| 84.59 | Insertion of other spinal devices |
| 84.60 | Insertion of spinal disc prosthesis, not otherwise specified |
| 84.61 | Insertion of partial spinal disc prosthesis, cervical |
| 84.62 | Insertion of total spinal disc prosthesis, cervical |
| 84.63 | Insertion of spinal disc prosthesis, thoracic |
| 84.64 | Insertion of partial spinal disc prosthesis, lumbosacral |
| 84.65 | Insertion of total spinal disc prosthesis, lumbosacral |
| 84.66 | Revision or replacement of artificial spinal disc prosthesis, cervical |
| 84.67 | Revision or replacement of artificial spinal disc prosthesis, thoracic |
| 84.68 | Revision or replacement of artificial spinal disc prosthesis, lumbosacral |
| 84.69 | Revision or replacement of artificial spinal disc prosthesis, not otherwise specified |
| 84.71 | Application of external fixator device, monoplanar system |
| 84.72 | Application of external fixator device, ring system |
| 84.73 | Application of hybrid external fixator device |
| 84.80 | Insertion or replacement of interspinous process device(s) |
| 84.81 | Revision of interspinous process device(s) |
| 84.82 | Insertion or replacement of pedicle-based dynamic stabilization device(s) |
| 84.83 | Revision of pedicle-based dynamic stabilization device(s) |
| 84.84 | Insertion or replacement of facet replacement device(s) |
| 84.85 | Revision of facet replacement device(s) |
| 84.91 | Amputation, not otherwise specified |
| 84.92 | Separation of equal conjoined twins |
| 84.93 | Separation of unequal conjoined twins |
| 84.94 | Insertion of sternal fixation device with rigid plates |
| 84.99 | Other operations on musculoskeletal system |
