Other secondary chronic gout, right knee, without tophus

This code signifies chronic gout affecting the right knee, which is secondary to another underlying condition or medication, and does not involve the presence of tophi (urate crystal deposits). It indicates persistent inflammation and pain in the joint due to elevated uric acid levels, but without the characteristic nodular formations.

Apply this code when documentation specifies chronic gout in the right knee, explicitly stating it is secondary and without tophaceous deposits. This is appropriate for patients whose gout is a consequence of conditions like chronic kidney disease, psoriasis, or certain diuretic medications. The physician's notes should clearly differentiate it from primary gout and confirm the absence of tophi.

• Ensure documentation specifies "secondary" gout and "chronic" nature.
• Verify the affected joint is the "right knee" and that "without tophus (tophi)" is explicitly stated or clearly implied.
• Always code the underlying secondary condition responsible for the gout first, if known and applicable.