I63.3 vs I74.8
I63.3 (Cerebral infarction due to thrombosis of cerebral arteries) compared with I74.8 (Embolism and thrombosis of other 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. I74.8 carries an Excludes2 note covering I63.3: “cerebral embolism and thrombosis (I63.3-I63.5, I66.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| I63.3Cerebral infarction due to thrombosis of cerebral arteries | I74.8Embolism and thrombosis of other arteries | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | I00-I99 — Diseases of the Circulatory System (I00-I99) | I00-I99 — Diseases of the Circulatory System (I00-I99) |
| Definition | Cerebral infarction due to thrombosis of cerebral arteries is a non-billable ICD-10-CM category code (I63.3). | Embolism and thrombosis of other arteries is a billable ICD-10-CM diagnosis code (I74.8). |
| Includes | occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction | embolic infarction embolic occlusion thrombotic infarction thrombotic occlusion |
| Use additional code | code, if applicable, to identify status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82) code, if known, to indicate National Institutes of Health Stroke Scale (NIHSS) score (R29.7-) code to identify presence of: | — |
| Code first | — | embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) embolism and thrombosis complicating pregnancy, childbirth and the puerperium (O88.-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources