Effusion, left wrist

This code signifies the presence of abnormal fluid accumulation within the joint capsule of the left wrist. This effusion indicates inflammation or irritation within the joint, often causing swelling, pain, and limited range of motion.

Apply this code when documentation explicitly states "effusion of the left wrist" or "fluid in the left wrist joint." This diagnosis is typically supported by physical examination findings (e.g., swelling, tenderness) and imaging studies such as ultrasound or MRI confirming intra-articular fluid.

• Always specify laterality (left, right, or bilateral) for wrist effusions.
• Do not use this code if the effusion is secondary to a specific underlying condition that is known and coded separately (e.g., rheumatoid arthritis with effusion).
• Look for documentation of the underlying cause of the effusion; if identified, code the underlying condition first, followed by the effusion.