Intermittent hydrarthrosis, right hand

This code signifies a recurrent, temporary swelling of the right hand joint(s) due to an accumulation of synovial fluid, without an identifiable underlying cause like infection or trauma. The condition is characterized by episodes of joint effusion that resolve spontaneously, often with periods of complete remission.

Apply this code when documentation clearly indicates intermittent hydrarthrosis affecting the right hand. This diagnosis is typically made after ruling out other causes of joint swelling, such as inflammatory arthritis, crystal arthropathy, or infectious processes. Supporting documentation should detail the episodic nature of the swelling and its location.

• Ensure documentation specifies "intermittent" and "right hand" to support this precise code.
• Do not use this code for chronic or persistent hydrarthrosis, or for hydrarthrosis secondary to another condition.
• Always review for laterality; separate codes exist for the left hand and bilateral involvement.