1. Normal ECG/EKG
2. Borderline normal ECG/EKG or normal variant
3. Incorrect electrode placement
4. Artifact
5. Right atrial abnormality/enlargement
6. Left atrial abnormality/enlargement
7. Sinus rhythm
8. Sinus arrhythmia
9. Sinus bradycardia (< 60)
10. Sinus tachycardia (> 100)
11. Sinus pause or arrest
12. Sinoatrial exit block
13. Atrial premature complex(es)
14. Atrial tachycardia
15. Atrial tachycardia, multifocal
16. Supraventricular tachycardia
17. Atrial flutter
18. Atrial fibrillation
19. AV junctional premature complex(es)
20. AV junctional escape complex(es)
21. AV junctional rhythm/tachycardia
22. Ventricular premature complex(es)
23. Ventricular parasystole
24. Ventricular tachycardia (≥ 3 consecutive complexes)
25. Torsades de pointes
26. Accelerated idioventricular rhythm
27. Ventricular escape complexes or rhythm
28. Ventricular fibrillation
29. AV block, 1⁰
30. AV block, 2⁰-Mobitz type I (Wenckebach)
31. AV block, 2⁰-Mobitz type II
32. AV block, 2:1
33. AV block, 3⁰
34. Wolff-Parkinson-White pattern
35. AV dissociation
36. Low voltage, limb leads
37. Low voltage, precordial leads
38. Left axis deviation (> -30⁰)
39. Right axis deviation (> +100⁰)
40. Electrical alternans
41. Left ventricular hypertrophy
42. Right ventricular hypertrophy
43. Combined ventricular hypertrophy
44. RBBB, complete
45. RBBB, incomplete
46. Brugada syndrome
47. Left anterior fascicular block
48. Left posterior fascicular block
49. LBBB, complete
50. LBBB, incomplete
51. Intraventricular conduction disturbance, nonspecific type
52. Functional (rate-related) aberrant intraventricular conduction
53. Anterolateral MI, age recent, or probably acute
54. Anterolateral MI, age indeterminate, or probably old
55. Anterior or anteroseptal MI, age recent, or probably acute
56. Anterior or anteroseptal MI, age indeterminate, or probably old
57. Lateral MI, age recent, or probably acute
58. Lateral MI, age indeterminate, or probably old
59. Inferior MI, age recent, or probably acute
60. Inferior MI, age indeterminate, or probably old
61. Posterior MI, age recent, or probably acute
62. Posterior MI, age indeterminate, or probably old
63. Normal variant, early repolarization
64. Normal variant, juvenile T waves
65. Nonspecific ST and/or T wave abnormalities
66. ST and/or T wave abnormalities suggesting myocardial ischemia
67. ST and/or T wave abnormalities suggesting myocardial injury
68. ST and/or T wave abnormalities suggesting electrolyte disturbances
69. ST and/or T wave abnormalities secondary to hypertrophy
70. Prolonged Q-T interval
71. Prominent U waves
72. Digitalis toxicity
73. Hyperkalemia
74. Hypokalemia
75. Hypercalcemia
76. Hypocalcemia
77. Dextrocardia, mirror image
78. Acute cor pulmonale including pulmonary embolism
79. Pericardial effusion
80. Acute pericarditis
81. Hypertrophic cardiomyopathy
82. Central nervous system disorder
83. Hypothermia
84. Atrial or coronary sinus pacing
85. Ventricular demand pacemaker (VVI), normally functioning
86. Dual-chamber pacemaker (DDD), normally functioning
87. Paced morphology consistent with biventricular pacing or cardiac resynchronization therapy
88. Pacemaker malfunction, not consistently capturing (atrium or ventricle)
89. Pacemaker malfunction, not consistently sensing (atrium or ventricle)
