I72.5 vs I77.75
I72.5 (Aneurysm of other precerebral arteries) compared with I77.75 (Dissection of other precerebral arteries), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. I72.5 carries an Excludes2 note covering I77.75: “dissection of other precerebral arteries (I77.75)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. I77.75 carries an Excludes2 note covering I72.5: “aneurysm of other precerebral arteries (I72.5)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| I72.5Aneurysm of other precerebral arteries | I77.75Dissection of other precerebral arteries | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Aneurysm of other precerebral arteries is a billable ICD-10-CM diagnosis code (I72.5). | Dissection of other precerebral arteries is a billable ICD-10-CM diagnosis code (I77.75). |
| Includes | aneurysm (cirsoid) (false) (ruptured) Aneurysm of basilar artery (trunk) | Dissection of basilar artery (trunk) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources