U83: Resistance to other antibiotics

U83.9: Resistance to unspecified antibiotic

Resistance to an unspecified antibiotic refers to a particular condition where some bacteria in the body have developed resistance or immunity to one or more antibiotics that were previously effective in treating them. This typically happens when bacteria change in some way that reduces or eliminates the effectiveness of the antibiotic. When this occurs, the bacteria continue to multiply, leading to more challenging and potentially dangerous infections. The condition can result from overuse or inappropriate use of antibiotics. Symptoms relate to the underlying infection, which could involve any system in the body. They vary widely and can progress rapidly or slowly, based on the type of bacteria and resistance patterns. It's important to note this condition doesn't affect a person's overall immune system.