Idiopathic gout, right ankle and foot

This diagnosis code signifies a primary form of gout affecting the right ankle and/or foot, where the underlying cause is unknown or not attributable to another specific condition. It indicates the presence of urate crystal deposition in these joints, leading to inflammation and pain, without an identifiable secondary etiology.

Apply this code when documentation clearly states a diagnosis of idiopathic gout localized to the right ankle and/or foot. This is appropriate when the physician has ruled out other causes of gout, such as drug-induced or secondary to another disease. Supporting documentation would include clinical notes detailing the diagnosis, location, and absence of a secondary cause.

• Ensure the documentation specifies "idiopathic" or "primary" gout to differentiate from secondary forms.
• Verify the laterality (right) and anatomical site (ankle and/or foot) are explicitly stated.
• Do not use this code if the gout is due to a known secondary cause; instead, code the specific type of secondary gout and the underlying condition.