Intermittent hydrarthrosis, multiple sites

This code describes a condition characterized by recurrent, temporary, and non-inflammatory swelling of one or more joints due to an effusion of synovial fluid. The swelling typically resolves spontaneously within a few days, only to recur at irregular intervals. It is often associated with no apparent cause or underlying systemic disease.

Use this code when documentation clearly indicates intermittent joint swelling affecting multiple joints, without signs of inflammation or infection. This diagnosis is typically made after ruling out other causes of joint effusion, such as trauma, infection, or inflammatory arthropathies. The physician's notes should specify the episodic nature of the hydrarthrosis.

• Ensure the documentation explicitly states "intermittent" and "multiple sites" to support this specific code.
• Do not use this code for acute, chronic, or inflammatory hydrarthrosis, or for effusions due to trauma or infection.
• Consider additional codes for any underlying conditions or associated symptoms if documented by the provider.