I51.3 Intracardiac thrombosis, not elsewhere classified

Billable ICD-10-CM code, FY2026.

Applicable to

• Apical thrombosis (old)
• Atrial thrombosis (old)
• Auricular thrombosis (old)
• Mural thrombosis (old)
• Ventricular thrombosis (old)

Excludes1 (never code together)

• intracardiac thrombosis as current complication following acute myocardial infarction (I23.6)

Applies from I51 Complications and ill-defined descriptions of heart disease

Excludes2 (not included here)

• heart disease specified as rheumatic (I00-I09)

MS-DRG index

Defines the logic of DRG(s) 302-303 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 429.89 Other ill-defined heart diseases (approximate)

Code annotations containing back-references to I51.3

Back-references to I51.3

• Type 1 Excludes: I23.6 Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction ("thrombosis of atrium, auricular appendage, and ventricle not specified as current complication following acute myocardial infarction (I51.3)")

Diagnosis Index entries for I51.3

• Clot (blood) › heart › not resulting in infarction
• Embolism (multiple) (paradoxical) › cardiac › not resulting in infarction
• Embolism (multiple) (paradoxical) › heart (fatty) › not resulting in infarction
• Ischemia, ischemic › myocardium, myocardial (chronic or with a stated duration of over 4 weeks) › acute, without myocardial infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › atrium, auricular › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › atrium, auricular › old
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › cardiac › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › cardiac › old
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › endocardial › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › heart (chamber) › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › heart (chamber) › old
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › intracardiac NEC (apical) (atrial) (auricular) (ventricular) (old)
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › intramural › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › intramural › old
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › mural › not resulting in infarction
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › mural › old
• Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › ventricle › old

Nearby codes

• I51 Complications and ill-defined descriptions of heart disease
• I51.0 Cardiac septal defect, acquired
• I51.1 Rupture of chordae tendineae, not elsewhere classified
• I51.2 Rupture of papillary muscle, not elsewhere classified
• I51.3 Intracardiac thrombosis, not elsewhere classified (this code)
• I51.4 Myocarditis, unspecified
• I51.5 Myocardial degeneration
• I51.7 Cardiomegaly
• I51.8 Other ill-defined heart diseases
• I51.81 Takotsubo syndrome