I23.6 vs I51.3
I23.6 and I51.3 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction
- Chapter 9
- Diseases of the circulatory system
- Section
- I20-I25
- Thrombosis, thrombotic › atrium, auricular › following acute myocardial infarction (current complication)
- Thrombosis, thrombotic › ventricle › following acute myocardial infarction (current complication)
- Complication › following › acute myocardial infarction NEC › atrial › thrombosis
- Complication › following › acute myocardial infarction NEC › thrombosis › atrium
- Complication › following › acute myocardial infarction NEC › thrombosis › auricular appendage
Intracardiac thrombosis, not elsewhere classified
- Chapter 9
- Diseases of the circulatory system
- Section
- I30-I5A
- Apical thrombosis (old)
- Atrial thrombosis (old)
- Auricular thrombosis (old)
- Mural thrombosis (old)
- Ventricular thrombosis (old)
- Thrombosis, thrombotic › intracardiac NEC (apical) (atrial) (auricular) (ventricular) (old)
- Clot › heart › not resulting in infarction
- Embolism › cardiac › not resulting in infarction
- Embolism › heart › not resulting in infarction
- Ischemia, ischemic › myocardium, myocardial › acute, without myocardial infarction
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027