M01.5: Arthritis in other viral diseases classified elsewhere

Arthritis in other viral diseases classified elsewhere (M01.5) refers to joint inflammation and swelling that occurs as a secondary condition due to a separate viral illness. This type of arthritis can arise from a variety of viruses that can infect the body in a number of ways, such as through inhaling droplets from a sick person who coughs or sneezes, ingesting contaminated food or water, or via insect bites. Symptoms typically include joint pain, redness, warmth and swelling, and possibly decreased range of motion of the affected joint. The disease progression varies depending on the underlying viral infection and the individual's immune response, potentially affecting one or many joints. It's important to note that this condition pinpointed by the presence of arthritis but its underlying cause is a different viral disease.