Pneumococcal polyarthritis

This code represents an inflammatory condition affecting multiple joints, specifically caused by a Streptococcus pneumoniae infection. It is a form of septic arthritis where the pneumococcus bacteria has disseminated to and infected the synovial fluid and tissues of several joints throughout the body.

Use this code when documentation clearly indicates a diagnosis of polyarthritis (involving multiple joints) and laboratory confirmation or strong clinical evidence points to Streptococcus pneumoniae as the causative organism. This typically occurs in patients with underlying conditions that predispose them to pneumococcal infections, such as immunocompromised states or recent respiratory infections.

• Always sequence the underlying infection (e.g., pneumonia, sepsis) as the primary diagnosis if it is the reason for the encounter, followed by this code for the manifestation.
• Ensure documentation specifies "polyarthritis" (multiple joints) rather than monoarthritis; if only one joint is affected, a more specific code for pneumococcal monoarthritis would be appropriate.
• Look for definitive diagnostic evidence such as positive joint fluid cultures for Streptococcus pneumoniae or strong clinical correlation in the absence of culture results.