Effusion, left hip

This code signifies the presence of excess fluid within the joint capsule of the left hip. This fluid accumulation can result from various inflammatory, infectious, or traumatic processes affecting the joint.

Apply this code when documentation clearly indicates an effusion in the left hip joint, often identified through imaging studies like ultrasound or MRI, or during physical examination. It is appropriate for conditions such as synovitis, arthritis, or trauma leading to fluid buildup.

• Ensure laterality is explicitly documented as "left hip" to support this specific code.
• Always code the underlying cause of the effusion first, if known (e.g., osteoarthritis, rheumatoid arthritis, trauma).
• Do not confuse with hemarthrosis (blood in the joint) or pyarthrosis (pus in the joint), which have distinct codes.