I63.6 (Cerebral infarction due to cerebral venous thrombosis, nonpyogenic) compared with I82.463 (Acute embolism and thrombosis of calf muscular vein, bilateral), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“cerebral (I63.6, I67.6)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. I82.463 carries an Excludes2 note covering I63.6: “cerebral (I63.6, I67.6)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| I63.6Cerebral infarction due to cerebral venous thrombosis, nonpyogenic | I82.463Acute embolism and thrombosis of calf muscular vein, bilateral | |
|---|---|---|
| Billing status | Billable | 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 cerebral venous thrombosis, nonpyogenic is a billable ICD-10-CM diagnosis code (I63.6). | Acute embolism and thrombosis of calf muscular vein, bilateral is a billable ICD-10-CM diagnosis code (I82.463). |
| Includes | occlusion and stenosis of cerebral and precerebral arteries, resulting in cerebral infarction | — |
| 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 | — | venous embolism and thrombosis complicating: abortion, ectopic or molar pregnancy (O00-O07, O08.7) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources