| I50814 | Right heart failure due to left heart failure |
| I5082 | Biventricular heart failure |
| I5083 | High output heart failure |
| I5084 | End stage heart failure |
| I5089 | Other heart failure |
| I509 | Heart failure, unspecified |
| I51 | Complications and ill-defined descriptions of heart disease |
| I510 | Cardiac septal defect, acquired |
| I511 | Rupture of chordae tendineae, not elsewhere classified |
| I512 | Rupture of papillary muscle, not elsewhere classified |
| I513 | Intracardiac thrombosis, not elsewhere classified |
| I514 | Myocarditis, unspecified |
| I515 | Myocardial degeneration |
| I517 | Cardiomegaly |
| I518 | Other ill-defined heart diseases |
| I5181 | Takotsubo syndrome |
| I5189 | Other ill-defined heart diseases |
| I519 | Heart disease, unspecified |
| I52 | Other heart disorders in diseases classified elsewhere |
| I5A | Non-ischemic myocardial injury (non-traumatic) |
| I60 | Nontraumatic subarachnoid hemorrhage |
| I600 | Ntrm subarach hemorrhage from carotid siphon and bifurcation Nontraumatic subarachnoid hemorrhage from carotid siphon and bifurcation |
| I6000 | Ntrm subarach hemorrhage from unsp carotid siphon and bifurc Nontraumatic subarachnoid hemorrhage from unspecified carotid siphon and bifurcation |
| I6001 | Nontraumatic subarachnoid hemorrhage from right carotid siphon and bifurcation |
| I6002 | Ntrm subarach hemorrhage from left carotid siphon and bifurc Nontraumatic subarachnoid hemorrhage from left carotid siphon and bifurcation |
| I601 | Nontraumatic subarachnoid hemorrhage from middle cerebral artery |
| I6010 | Nontraumatic subarachnoid hemorrhage from unspecified middle cerebral artery |
| I6011 | Nontraumatic subarachnoid hemorrhage from right middle cerebral artery |
| I6012 | Nontraumatic subarachnoid hemorrhage from left middle cerebral artery |
| I602 | Nontraumatic subarachnoid hemorrhage from anterior communicating artery |
| I603 | Ntrm subarach hemorrhage from posterior communicating artery Nontraumatic subarachnoid hemorrhage from posterior communicating artery |
| I6030 | Ntrm subarach hemor from unsp posterior communicating artery Nontraumatic subarachnoid hemorrhage from unspecified posterior communicating artery |
| I6031 | Nontraumatic subarachnoid hemorrhage from right posterior communicating artery |
| I6032 | Ntrm subarach hemor from left posterior communicating artery Nontraumatic subarachnoid hemorrhage from left posterior communicating artery |
| I604 | Nontraumatic subarachnoid hemorrhage from basilar artery |
| I605 | Nontraumatic subarachnoid hemorrhage from vertebral artery |
| I6050 | Nontraumatic subarachnoid hemorrhage from unspecified vertebral artery |
| I6051 | Nontraumatic subarachnoid hemorrhage from right vertebral artery |
| I6052 | Nontraumatic subarachnoid hemorrhage from left vertebral artery |
| I606 | Nontraumatic subarachnoid hemorrhage from other intracranial arteries |
| I607 | Nontraumatic subarachnoid hemorrhage from unsp intracran art Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery |
| I608 | Other nontraumatic subarachnoid hemorrhage |
| I609 | Nontraumatic subarachnoid hemorrhage, unspecified |
| I61 | Nontraumatic intracerebral hemorrhage |
| I610 | Nontraumatic intracerebral hemorrhage in hemisphere, subcortical |
| I611 | Nontraumatic intracerebral hemorrhage in hemisphere, cortical |
| I612 | Nontraumatic intracerebral hemorrhage in hemisphere, unspecified |
| I613 | Nontraumatic intracerebral hemorrhage in brain stem |
| I614 | Nontraumatic intracerebral hemorrhage in cerebellum |
| I615 | Nontraumatic intracerebral hemorrhage, intraventricular |