Pyogenic arthritis, unspecified

This code represents an acute inflammatory joint condition caused by a bacterial infection, where the specific microorganism or the affected joint is not documented. It signifies a purulent infection within a joint space, leading to pain, swelling, and restricted movement.

Assign this code when the medical record clearly indicates a diagnosis of pyogenic arthritis, but the specific joint involved or the causative organism is not identified. This is often used in initial presentations or when diagnostic workup is incomplete. Documentation should support the presence of an infectious arthritis without further specificity.

• Avoid using this code if the specific joint (e.g., knee, hip) is documented; instead, use a more specific code from the M00.0-M00.8 series.
• Do not use this code if the causative organism is identified; instead, refer to codes that specify the bacterial agent.
• Always review the entire medical record for additional details that might allow for a more precise and specific code assignment.