Aneurysm of unspecified site

This code signifies the presence of an aneurysm where the specific anatomical location of the vascular dilation is not documented by the provider. An aneurysm is a localized, abnormal, weak spot on a blood vessel wall that causes it to balloon or widen.

Use this code when the medical record clearly indicates an aneurysm but lacks precise information regarding its origin (e.g., "patient has an aneurysm"). This code is appropriate when the physician's documentation does not specify the artery or vessel involved.

• Avoid using this code if a more specific anatomical site for the aneurysm is documented (e.g., cerebral, aortic, splenic).
• Always query the provider for a more specific site if possible to allow for more precise coding.
• This code should be a last resort when no further specificity can be obtained from the medical record or provider.