2020 ICD-10-CM Diagnosis Code I51.3

Intracardiac thrombosis, not elsewhere classified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • I51.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM I51.3 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I51.3 - other international versions of ICD-10 I51.3 may differ.
Applicable To
  • Apical thrombosis (old)
  • Atrial thrombosis (old)
  • Auricular thrombosis (old)
  • Mural thrombosis (old)
  • Ventricular thrombosis (old)
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I51.3. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • intracardiac thrombosis as current complication following acute myocardial infarction (
    ICD-10-CM Diagnosis Code I23.6

    Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction

      2016 2017 2018 2019 2020 Billable/Specific Code Adult Dx (15-124 years)
    Type 1 Excludes
    • thrombosis of atrium, auricular appendage, and ventricle not specified as current complication following acute myocardial infarction (I51.3)
    I23.6
    )
The following code(s) above I51.3 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I51.3:
  • I00-I99
    2020 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    • systemic connective tissue disorders (M30-M36)
    • transient cerebral ischemic attacks and related syndromes (G45.-)
    Diseases of the circulatory system
  • I51
    ICD-10-CM Diagnosis Code I51

    Complications and ill-defined descriptions of heart disease

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Complications and ill-defined descriptions of heart disease
Approximate Synonyms
  • Left ventricular mural thrombus
  • Mural thrombus of heart following old myocardial infarction
  • Mural thrombus of heart left atrium
  • Mural thrombus of heart post old mi
  • Mural thrombus of left atrium
  • Mural thrombus of left ventricle
  • Mural thrombus of right atrium
  • Mural thrombus of right ventricle
  • Right atrial mural thrombus
  • Right ventricular mural thrombus
ICD-10-CM I51.3 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 302 Atherosclerosis with mcc
  • 303 Atherosclerosis without mcc

Convert I51.3 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to I51.3:
  • Type 1 Excludes: I23.6
    ICD-10-CM Diagnosis Code I23.6

    Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction

      2016 2017 2018 2019 2020 Billable/Specific Code Adult Dx (15-124 years)
    Type 1 Excludes
    • thrombosis of atrium, auricular appendage, and ventricle not specified as current complication following acute myocardial infarction (I51.3)

Diagnosis Index entries containing back-references to I51.3:

ICD-10-CM Codes Adjacent To I51.3
I50.814 …… due to left heart failure
I50.82 Biventricular heart failure
I50.83 High output heart failure
I50.84 End stage heart failure
I50.89 Other heart failure
I50.9 Heart failure, unspecified
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
I51.4 Myocarditis, unspecified
I51.5 Myocardial degeneration
I51.7 Cardiomegaly
I51.8 Other ill-defined heart diseases
I51.81 Takotsubo syndrome
I51.89 Other ill-defined heart diseases
I51.9 Heart disease, unspecified
I52 Other heart disorders in diseases classified elsewhere
I60 Nontraumatic subarachnoid hemorrhage
I60.0 Nontraumatic subarachnoid hemorrhage from carotid siphon and bifurcation

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.