Idiopathic gout, vertebrae

This code signifies a form of inflammatory arthritis caused by the deposition of monosodium urate crystals in the vertebral joints, without an identifiable secondary cause. It presents as acute or chronic pain, swelling, and tenderness affecting the spinal column due to hyperuricemia. This condition is distinct from gout caused by specific underlying medical conditions or medications.

Assign this code when documentation explicitly states "idiopathic gout" affecting the vertebrae. This diagnosis requires clinical evidence of gout and exclusion of secondary causes such as renal insufficiency, myeloproliferative disorders, or diuretic use. Supporting documentation should include imaging findings (e.g., X-ray, CT, MRI) showing characteristic vertebral involvement and laboratory results confirming hyperuricemia.

• Ensure the physician's documentation specifies "idiopathic" to differentiate from secondary gout.
• Do not use this code if the gout is due to an underlying condition; instead, code the specific type of secondary gout.
• Consider sequencing this code after any acute exacerbation codes (e.g., M1A.0X) if applicable, following ICD-10-CM guidelines.