I44
Header — not billableAtrioventricular and left bundle-branch block
The ICD-10 code for atrioventricular and left bundle-branch block is I44.
I44 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 8 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under I44
- I44.0Atrioventricular block, first degree
- I44.1Atrioventricular block, second degree
- I44.2Atrioventricular block, complete
- I44.3Other and unspecified atrioventricular blocknon-billable header
- I44.4Left anterior fascicular block
- I44.5Left posterior fascicular block
- I44.6Other and unspecified fascicular blocknon-billable header
- I44.7Left bundle-branch block, unspecified
Related codes in this category
- I30Acute pericarditisnon-billable header
- I31Other diseases of pericardiumnon-billable header
- I32Pericarditis in diseases classified elsewhere
- I33Acute and subacute endocarditisnon-billable header
- I34Nonrheumatic mitral valve disordersnon-billable header
- I35Nonrheumatic aortic valve disordersnon-billable header
- I36Nonrheumatic tricuspid valve disordersnon-billable header
- I37Nonrheumatic pulmonary valve disordersnon-billable header
- I38Endocarditis, valve unspecified
- I39Endocarditis and heart valve disorders in diseases classified elsewhere
- I40Acute myocarditisnon-billable header
- I41Myocarditis in diseases classified elsewhere
- I42Cardiomyopathynon-billable header
- I43Cardiomyopathy in diseases classified elsewhere
- I45Other conduction disordersnon-billable header
- I46Cardiac arrestnon-billable header
- I47Paroxysmal tachycardianon-billable header
- I48Atrial fibrillation and flutternon-billable header
- I49Other cardiac arrhythmiasnon-billable header
- I50Heart failurenon-billable header
- I51Complications and ill-defined descriptions of heart diseasenon-billable header
- I52Other heart disorders in diseases classified elsewhere
- I5ANon-ischemic myocardial injury (non-traumatic)
- I44Atrioventricular and left bundle-branch blocknon-billable header