ICD-10-CM Clinical Concepts · FY 2026 192 Codes
Common ICD-10-CM Codes for Clinical Concepts for Cardiology ICD-10-CM
Clinical Concepts for Cardiology providers see a recurring set of conditions, and this reference collects the 192 ICD-10-CM codes they report most often, organized into 10 clinical concepts from abnormalities of heart rhythm onward. Billable codes carry the green check; entries with the amber note point at a category where a more specific code should be considered first. Every code links to its full code page for verification.
✓ Codes validated against the official CMS FY 2026 code setEffective Oct 1, 2025 – Sep 30, 2026
10
Concept Groups
192
Codes
157
Billable
FY 2026
Dataset
192 of 192 shown
Abnormalities of Heart Rhythm 12 codes
- I47 Paroxysmal tachycardia Non-billable
- I47.1 Supraventricular tachycardia Non-billable
- I47.2 Ventricular tachycardia Non-billable
- I47.9 Paroxysmal tachycardia, unspecified
- P29.11 Neonatal tachycardia
- P29.12 Neonatal bradycardia
- R00 Abnormalities of heart beat Non-billable
- R00.0 Tachycardia, unspecified
- R00.1 Bradycardia, unspecified
- R00.2 Palpitations
- R00.8 Other abnormalities of heart beat
- R00.9 Unspecified abnormalities of heart beat specificity
Atrial Fibrillation and Flutter 14 codes
- I48 Atrial fibrillation and flutter Non-billable
- I48.0 Paroxysmal atrial fibrillation
- I48.1 Persistent atrial fibrillation Non-billable
- I48.11 Longstanding persistent atrial fibrillation
- I48.19 Other persistent atrial fibrillation
- I48.2 Chronic atrial fibrillation Non-billable
- I48.20 Chronic atrial fibrillation, unspecified
- I48.21 Permanent atrial fibrillation
- I48.3 Typical atrial flutter
- I48.4 Atypical atrial flutter
- I48.9 Unspecified atrial fibrillation and atrial flutter Non-billable
- I48.91 Unspecified atrial fibrillation specificity
- I48.92 Unspecified atrial flutter specificity
- I49.0 Ventricular fibrillation and flutter Non-billable
Cardiac Arrhythmias (Other) 11 codes
- I49.01 Ventricular fibrillation
- I49.02 Ventricular flutter
- I49.1 Atrial premature depolarization
- I49.2 Junctional premature depolarization
- I49.3 Ventricular premature depolarization
- I49.4 Other and unspecified premature depolarization Non-billable
- I49.40 Unspecified premature depolarization
- I49.49 Other premature depolarization
- I49.5 Sick sinus syndrome
- I49.8 Other specified cardiac arrhythmias
- I49.9 Cardiac arrhythmia, unspecified specificity
Chest Pain 22 codes
- I20 Angina pectoris Non-billable
- I20.0 Unstable angina
- I20.1 Angina pectoris with documented spasm
- I20.8 Other forms of angina pectoris Non-billable
- I20.9 Angina pectoris, unspecified
- I25.11 Atherosclerotic heart disease of native coronary artery with angina pectoris Non-billable
- I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris Non-billable
- I25.70 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris Non-billable
- I25.71 Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris Non-billable
- I25.72 Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris Non-billable
- I25.73 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris Non-billable
- I25.75 Atherosclerosis of native coronary artery of transplanted heart with angina pectoris Non-billable
- I25.76 Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris Non-billable
- I25.79 Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris Non-billable
- I25.81 Atherosclerosis of other coronary vessels without angina pectoris Non-billable
- R07.1 Chest pain on breathing
- R07.2 Precordial pain
- R07.8 Other chest pain Non-billable
- R07.81 Pleurodynia
- R07.82 Intercostal pain
- R07.89 Other chest pain
- R07.9 Chest pain, unspecified specificity
Heart Failure 40 codes
- I09.81 Rheumatic heart failure
- I11.0 Hypertensive heart disease with heart failure
- I11.9 Hypertensive heart disease without heart failure
- I13.0 Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
- I13.1 Hypertensive heart and chronic kidney disease without heart failure Non-billable
- I13.10 Hypertensive heart and chronic kidney disease without heart failure, with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
- I13.11 Hypertensive heart and chronic kidney disease without heart failure, with stage 5 chronic kidney disease, or end stage renal disease
- I13.2 Hypertensive heart and chronic kidney disease with heart failure and with stage 5 chronic kidney disease, or end stage renal disease
- I50 Heart failure Non-billable
- I50.1 Left ventricular failure, unspecified
- I50.2 Systolic (congestive) heart failure Non-billable
- I50.20 Unspecified systolic (congestive) heart failure specificity
- I50.21 Acute systolic (congestive) heart failure
- I50.22 Chronic systolic (congestive) heart failure
- I50.23 Acute on chronic systolic (congestive) heart failure
- I50.3 Diastolic (congestive) heart failure Non-billable
- I50.30 Unspecified diastolic (congestive) heart failure specificity
- I50.31 Acute diastolic (congestive) heart failure
- I50.32 Chronic diastolic (congestive) heart failure
- I50.33 Acute on chronic diastolic (congestive) heart failure
- I50.4 Combined systolic (congestive) and diastolic (congestive) heart failure Non-billable
- I50.40 Unspecified combined systolic (congestive) and diastolic (congestive) heart failure specificity
- I50.41 Acute combined systolic (congestive) and diastolic (congestive) heart failure
- I50.42 Chronic combined systolic (congestive) and diastolic (congestive) heart failure
- I50.43 Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure
- I50.8 Other heart failure Non-billable
- I50.81 Right heart failure Non-billable
- I50.810 Right heart failure, unspecified
- I50.811 Acute right heart failure
- I50.812 Chronic right heart failure
- I50.813 Acute on chronic right heart failure
- I50.814 Right heart failure 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 specificity
- I97.13 Postprocedural heart failure Non-billable
- I97.130 Postprocedural heart failure following cardiac surgery
- I97.131 Postprocedural heart failure following other surgery
Hypertension 10 codes
- I10 Essential (primary) hypertension
- I27.0 Primary pulmonary hypertension
- I27.2 Other secondary pulmonary hypertension Non-billable
- I27.20 Pulmonary hypertension, unspecified
- I27.21 Secondary pulmonary arterial hypertension
- I27.22 Pulmonary hypertension due to left heart disease
- I27.23 Pulmonary hypertension due to lung diseases and hypoxia
- I27.24 Chronic thromboembolic pulmonary hypertension
- I27.29 Other secondary pulmonary hypertension
- P29.30 Pulmonary hypertension of newborn
Nonrheumatic Valve Disorders - Aortic Valve Disorders 6 codes
- I35 Nonrheumatic aortic valve disorders Non-billable
- I35.0 Nonrheumatic aortic (valve) stenosis
- I35.1 Nonrheumatic aortic (valve) insufficiency
- I35.2 Nonrheumatic aortic (valve) stenosis with insufficiency
- I35.8 Other nonrheumatic aortic valve disorders
- I35.9 Nonrheumatic aortic valve disorder, unspecified specificity
Nonrheumatic Valve Disorders - Mitral Valve Disorders 6 codes
- I34 Nonrheumatic mitral valve disorders Non-billable
- I34.0 Nonrheumatic mitral (valve) insufficiency
- I34.1 Nonrheumatic mitral (valve) prolapse
- I34.2 Nonrheumatic mitral (valve) stenosis
- I34.8 Other nonrheumatic mitral valve disorders Non-billable
- I34.9 Nonrheumatic mitral valve disorder, unspecified specificity
Selected Atherosclerosis, Ischemia, and Infarction 70 codes
- I21.01 ST elevation (STEMI) myocardial infarction involving left main coronary artery
- I21.02 ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery
- I21.09 ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
- I21.11 ST elevation (STEMI) myocardial infarction involving right coronary artery
- I21.19 ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
- I21.21 ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
- I21.29 ST elevation (STEMI) myocardial infarction involving other sites
- I21.3 ST elevation (STEMI) myocardial infarction of unspecified site
- I21.4 Non-ST elevation (NSTEMI) myocardial infarction
- I22.0 Subsequent ST elevation (STEMI) myocardial infarction of anterior wall
- I22.1 Subsequent ST elevation (STEMI) myocardial infarction of inferior wall
- I22.2 Subsequent non-ST elevation (NSTEMI) myocardial infarction
- I22.8 Subsequent ST elevation (STEMI) myocardial infarction of other sites
- I22.9 Subsequent ST elevation (STEMI) myocardial infarction of unspecified site
- I23.0 Hemopericardium as current complication following acute myocardial infarction
- I23.1 Atrial septal defect as current complication following acute myocardial infarction
- I23.2 Ventricular septal defect as current complication following acute myocardial infarction
- I23.3 Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction
- I23.4 Rupture of chordae tendineae as current complication following acute myocardial infarction
- I23.5 Rupture of papillary muscle as current complication following acute myocardial infarction
- I23.6 Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction
- I23.7 Postinfarction angina
- I23.8 Other current complications following acute myocardial infarction
- I25.10 Atherosclerotic heart disease of native coronary artery without angina pectoris
- I25.110 Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
- I25.111 Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
- I25.118 Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
- I25.119 Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris specificity
- I25.2 Old myocardial infarction
- I25.3 Aneurysm of heart
- I25.41 Coronary artery aneurysm
- I25.42 Coronary artery dissection
- I25.5 Ischemic cardiomyopathy
- I25.6 Silent myocardial ischemia
- I25.700 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris specificity
- I25.701 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris with documented spasm specificity
- I25.708 Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris specificity
- I25.709 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris specificity
- I25.710 Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris
- I25.711 Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.718 Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of angina pectoris
- I25.719 Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris specificity
- I25.720 Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable angina pectoris
- I25.721 Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.728 Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of angina pectoris
- I25.729 Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris specificity
- I25.730 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris
- I25.731 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.738 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris
- I25.739 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris specificity
- I25.750 Atherosclerosis of native coronary artery of transplanted heart with unstable angina
- I25.751 Atherosclerosis of native coronary artery of transplanted heart with angina pectoris with documented spasm
- I25.758 Atherosclerosis of native coronary artery of transplanted heart with other forms of angina pectoris
- I25.759 Atherosclerosis of native coronary artery of transplanted heart with unspecified angina pectoris specificity
- I25.760 Atherosclerosis of bypass graft of coronary artery of transplanted heart with unstable angina
- I25.761 Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris with documented spasm
- I25.768 Atherosclerosis of bypass graft of coronary artery of transplanted heart with other forms of angina pectoris
- I25.769 Atherosclerosis of bypass graft of coronary artery of transplanted heart with unspecified angina pectoris specificity
- I25.790 Atherosclerosis of other coronary artery bypass graft(s) with unstable angina pectoris
- I25.791 Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm
- I25.798 Atherosclerosis of other coronary artery bypass graft(s) with other forms of angina pectoris
- I25.799 Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris specificity
- I25.810 Atherosclerosis of coronary artery bypass graft(s) without angina pectoris
- I25.811 Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
- I25.812 Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris
- I25.82 Chronic total occlusion of coronary artery
- I25.83 Coronary atherosclerosis due to lipid rich plaque
- I25.84 Coronary atherosclerosis due to calcified coronary lesion
- I25.89 Other forms of chronic ischemic heart disease
- I25.9 Chronic ischemic heart disease, unspecified specificity
Syncope and Collapse 1 codes
- R55 Syncope and collapse
Entries marked specificity point at a category: codes with a greater degree of specificity should be considered first.
Related References
Clinical Concepts for Family PracticeClinical Concepts for Internal MedicineClinical Concepts for OB/GYNClinical Concepts for OrthopedicsClinical Concepts for PediatricsAll Clinical ConceptsICD-10-CM Code LookupICD-10-CM Codes List
Source: CMS ICD-10 Clinical Concepts guides, with every code validated against the official FY 2026 ICD-10-CM code set, effective October 1, 2025 through September 30, 2026.
