Other infectious diseases (B99)

The ICD-10 code range B99 covers other and unspecified infectious diseases that do not fit into more specific categories. It includes conditions caused by unusual infectious agents such as Protothecosis and infections related to medical devices or implants.

This range is used for coding infections that are either unspecified or caused by rare or less common organisms, like algae or plant pathogens, as seen in B99.8. The codes also capture a vast array of infectious complications involving skin, soft tissue, bone, nervous system, and various medical devices. The B99.9 code represents unspecified infectious diseases and includes many synonyms like localized infections, paronychia, abscesses, osteomyelitis, and infections of implantable devices, catheters, and prostheses. This code is essential for documenting infections where the exact cause or specific infectious agent is unknown or not further classified. Medical coders use these codes to report infections associated with diverse body systems and complications from indwelling devices or surgical procedures, helping in the identification and management of uncommon or secondary infections in clinical practice.