T80-T88: Complications of surgical and medical care, not elsewhere classified

T85: Complications of other internal prosthetic devices, implants and grafts

The group of conditions classified under "Complications of other internal prosthetic devices, implants and grafts" refers to issues related to the body's response post-surgery that involves placement of artificial devices, implants, or grafts. These complications arise when the systems of the body - such as the heart, lungs, kidneys, nerves, among others - react adversely to the prosthetic. For instance, the body might mistakenly categorize implanted devices as foreign bodies, sparking an immune response, leading to inflammation and infection. Other times, there could be mechanical complications, such as a device malfunction or shifting from its intended position, adding stress to the body. Symptoms are varied and generally depend on the location and type of the device, but common indicators can include pain, redness, swelling, or even system-specific signs like heart palpitations if a cardiac implant is involved. Progression varies and can escalate if not addressed promptly.