Direct infct of l wrist in infec/parastc dis classd elswhr

This diagnosis code signifies an inflammatory arthritis of the left wrist joint directly caused by an infectious agent, such as bacteria, viruses, fungi, or parasites. The underlying infectious or parasitic disease is classified and coded separately. This condition is distinct from non-infectious inflammatory arthropathies.

Use this code when documentation clearly indicates septic arthritis or infectious arthritis affecting the left wrist, and the primary infectious or parasitic disease is known and coded elsewhere. Supporting documentation should include culture results, imaging findings (e.g., joint effusion, bone erosion), and clinical signs of infection localized to the left wrist.

• Always sequence the underlying infectious or parasitic disease code first, as this code is "due to" an external cause.
• Ensure documentation specifies "left wrist" to support laterality; otherwise, an unspecified laterality code may be more appropriate.
• Differentiate from M00.- codes (pyogenic arthritis) when the specific infectious organism is known and classified elsewhere.