Megaloureter

This code describes a congenital or acquired condition characterized by an abnormally dilated ureter, often without evidence of obstruction. The ureter's diameter is significantly larger than normal, which can impair urine flow and lead to urinary stasis. This dilation can affect one or both ureters.

Use this code when documentation clearly indicates a diagnosis of megaloureter, whether primary (congenital) or secondary to other conditions, and no specific obstructive cause is identified. This diagnosis is typically made based on imaging studies such as ultrasound, CT scan, or voiding cystourethrogram (VCUG).

• Differentiate from hydroureter due to obstruction; if an obstruction is identified, a more specific code for the obstructive uropathy should be used.
• Review imaging reports and physician notes carefully to confirm the diagnosis and rule out other causes of ureteral dilation.
• Consider laterality if specified in the documentation (e.g., unilateral vs. bilateral), although this code does not differentiate laterality.