Transient synovitis, left shoulder

This code signifies a temporary, non-infectious inflammation of the synovial membrane lining the left shoulder joint. It typically presents with acute pain and limited range of motion, often resolving spontaneously without long-term sequelae.

Apply this code for patients presenting with acute, self-limiting left shoulder pain and effusion, where infectious or chronic inflammatory conditions have been ruled out. Documentation should clearly indicate "transient synovitis" affecting the left shoulder.

• Ensure laterality is explicitly documented as "left shoulder."
• Differentiate from other forms of synovitis (e.g., infectious, chronic) which have distinct codes.
• Do not use for traumatic synovitis unless the transient nature is confirmed.