Arthritis due to other bacteria, unspecified ankle and foot

This diagnosis code signifies an inflammatory joint condition affecting an unspecified ankle or foot, caused by a bacterial infection other than those specifically classified elsewhere (e.g., gonococcal, meningococcal). It indicates a bacterial arthritis where the specific type of bacteria is not documented.

Use this code when documentation confirms bacterial arthritis in the ankle or foot, but the specific bacterial pathogen is not identified or specified. This is appropriate when culture results are pending, inconclusive, or not performed, and the physician has diagnosed bacterial arthritis.

• Ensure the documentation clearly states "bacterial arthritis" and specifies involvement of the ankle or foot.
• Avoid using this code if a more specific bacterial cause (e.g., staphylococcal, streptococcal) is identified; instead, use the appropriate specific code from the M00.0-M00.3 series.
• If the specific ankle or foot (right or left) is documented, use the more precise M00.871 or M00.872 codes.