M79: Other soft tissue disorders, not elsewhere classified

M79.5: Residual foreign body in soft tissue

Residual foreign body in soft tissue refers to a condition where a foreign material, such as a splinter, glass, metal, or any other unwelcome substance, is left behind in the body's soft tissue after an injury or surgery. This foreign body often goes unobserved and remains lodged in the soft tissue leading to inflammation, pain, or discomfort. The body can also respond by forming a protective layer around the material, creating what is known as a granuloma. Symptoms of a residual foreign body can vary, but generally include localized pain, redness, swelling, and sometimes, pus discharge at the site of the foreign body. In some cases, the foreign body may not produce any noticeable symptoms until it migrates or causes damage to nearby structures. The detection and management of the foreign body are crucial in minimizing any potential complications.