| NDT | non-diagnostic T abnormalities | 4065390 | EKG: T wave abnormal | | | | | | | |
| NST_ | non-specific ST changes | 4327859 | Nonspecific ST-T abnormality on electrocardiogram | 4064461 | ECG: ST interval abnormal | | | | | |
| DIG | digitalis-effect | 4091454 | Digitalis ECG pattern | | | | | | | |
| LNGQT | long QT-interval | 4008859 | Prolonged QT interval | | | | | | | |
| NORM | normal ECG | 4065279 | ECG normal | | | | | | | |
| IMI | inferior myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| ASMI | anteroseptal myocardial infarction | 4064610 | Anteroseptal infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| LVH | left ventricular hypertrophy | 4102533 | Left ventricular hypertrophy by electrocardiogram | 4184746 | Left ventricular hypertrophy | | | | | |
| LAFB | left anterior fascicular block | 40482086 | Left anterior fascicular block on electrocardiogram | 4295336 | Left anterior fascicular block | | | | | |
| ISC_ | non-specific ischemic | 4064346 | EKG myocardial ischemia | 4186397 | Myocardial ischemia | | | | | |
| IRBBB | incomplete right bundle branch block | 37017193 | EKG: Incomplete right bundle branch block | 4088338 | Incomplete right bundle branch block | | | | | |
| 1AVB | first degree AV block | 4064873 | ECG: partial atrioventricular block - long PR | 314379 | First degree atrioventricular block | | | | | |
| IVCD | non-specific intraventricular conduction disturbance (block) | 4064457 | EKG: heart block | 44784220 | Non-specific intraventricular conduction delay | | | | | |
| ISCAL | ischemic in anterolateral leads | 4064346 | EKG myocardial ischemia | 4186397 | Myocardial ischemia | | | | | |
| CRBBB | complete right bundle branch block | 37017194 | EKG: complete right bundle branch block | 4088337 | Complete right bundle branch block | | | | | |
| CLBBB | complete left bundle branch block | 37118682 | EKG: complete left bundle branch block | 4267892 | Complete left bundle branch block | | | | | |
| ILMI | inferolateral myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | 4329847 | Myocardial infarction | 4064350 | Lateral infarction on electrocardiogram | | | |
| LAO/LAE | left atrial overload/enlargement | | | 43022066 | Left atrial enlargement | | | | | |
| AMI | anterior myocardial infarction | 4180609 | Anterior myocardial infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| ALMI | anterolateral myocardial infarction | 4184348 | Anterolateral infarction by electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| ISCIN | ischemic in inferior leads | 4137208 | EKG: inferior ischemia | 4186397 | Myocardial ischemia | | | | | |
| INJAS | subendocardial injury in anteroseptal leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | |
| LMI | lateral myocardial infarction | 4064350 | Lateral infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| ISCIL | ischemic in inferolateral leads | 4137208 | EKG: inferior ischemia | 4186397 | Myocardial ischemia | | | | | |
| LPFB | left posterior fascicular block | 40482505 | Left posterior fascicular block on electrocardiogram | 4268046 | Left posterior fascicular block | | | | | |
| ISCAS | ischemic in anteroseptal leads | 4139185 | EKG: anterior ischemia | 4186397 | Myocardial ischemia | | | | | |
| INJAL | subendocardial injury in anterolateral leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | |
| ISCLA | ischemic in lateral leads | 4137879 | EKG: lateral ischemia | 4186397 | Myocardial ischemia | | | | | |
| RVH | right ventricular hypertrophy | 4065283 | EKG: right ventricle hypertrophy | 4231591 | Right ventricular hypertrophy | | | | | |
| ANEUR | ST-T changes compatible with ventricular aneurysm | 4064461 | ECG: ST interval abnormal | 4236169 | Ventricular aneurysm | | | | | |
| RAO/RAE | right atrial overload/enlargement | | | 43021828 | Right atrial enlargement | | | | | |
| EL | electrolytic disturbance or drug (former EDIS) | | | 4035139 | Disorder of electrolytes | | | | | |
| WPW | Wolf-Parkinson-White syndrome | | | 4253363 | Wolff-Parkinson-White pattern | | | | | |
| ILBBB | incomplete left bundle branch block | 37017193 | EKG: Incomplete left bundle branch block | 4088336 | Incomplete left bundle branch block | | | | | |
| IPLMI | inferoposterolateral myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| ISCAN | ischemic in anterior leads | 4139185 | EKG: anterior ischemia | 4186397 | Myocardial ischemia | | | | | |
| IPMI | inferoposterior myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| SEHYP | septal hypertrophy | | | 4007948 | Interventricular cardiac septal hypertrophy | | | | | |
| INJIN | subendocardial injury in inferior leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | |
| INJLA | subendocardial injury in lateral leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | |
| PMI | posterior myocardial infarction | 4253065 | Posterior myocardial infarction on electrocardiogram | 4329847 | Myocardial infarction | | | | | |
| 3AVB | third degree AV block | 4064874 | EKG: complete atrioventricular block | 320744 | Complete atrioventricular block | | | | | |
| INJIL | subendocardial injury in inferolateral leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | |
| 2AVB | second degree AV block | 4064457 | EKG: heart block | 318448 | Second degree atrioventricular block | | | | | |
| ABQRS | abnormal QRS | 4065394 | EKG: QRS complex abnormal | | | | | | | |
| PVC | ventricular premature complex | 4145998 | ECG: premature ventricular contractions | 4089462 | Ventricular premature complex | | | | | |
| STD_ | non-specific ST depression | 4095285 | ST segment depression | | | | | | | |
| VCLVH | voltage criteria (QRS) for left ventricular hypertrophy | | | | | | | | | |
| QWAVE | Q waves present | | | | | | | | | |
| LOWT | low amplitude T-waves | 4281078 | Flattened T wave | | | | | | | |
| NT_ | non-specific T-wave changes | 4065390 | EKG: T wave abnormal | | | | | | | |
| PAC | atrial premature complex | 4144613 | ECG: ectopic beats - premature atrial contraction | 4115173 | Atrial premature complex | 4109365 | Premature atrial contraction | | | |
| LPR | prolonged PR interval | 4064885 | Prolonged PR interval | | | | | | | |
| INVT | inverted T-waves | 4245977 | Inverted T wave | | | | | | | |
| LVOLT | low QRS voltages in the frontal and horizontal leads | 4089476 | QRS complex height decreased | 4088499 | Low QRS voltages | | | | | |
| HVOLT | high QRS voltage | 4089475 | QRS complex height increased | | | | | | | |
| TAB_ | T-wave abnormality | 4065390 | EKG: T wave abnormal | | | | | | | |
| STE_ | non-specific ST elevation | 4295129 | ST segment elevation | | | | | | | |
| PRC(S) | premature complex(es) | 4064867 | ECG: ectopic beats | | | | | | | |
| SR | sinus rhythm | 4145513 | ECG: sinus rhythm | 4091898 | Sinus rhythm | | | | | |
| AFIB | atrial fibrillation | 4064452 | ECG: atrial fibrillation | 313217 | Atrial fibrillation | | | | | |
| STACH | sinus tachycardia | 4140598 | ECG: sinus tachycardia | 4007310 | Sinus tachycardia | | | | | |
| SARRH | sinus arrhythmia | 4141820 | ECG: sinus arrhythmia | 4217221 | Nodal rhythm disorder | | | | | |
| SBRAD | sinus bradycardia | 4138456 | ECG: sinus bradycardia | 4171683 | Sinus bradycardia | | | | | |
| PACE | normal functioning artificial pacemaker | 4138896 | ECG: pacemaker active | 4304202 | Rhythm from artificial pacing | | | | | |
| SVARR | supraventricular arrhythmia | 4065287 | EKG: supraventricular arrhythmia | 4248028 | Supraventricular arrhythmia | | | | | |
| BIGU | bigeminal pattern (unknown origin, SV or Ventricular) | 44791633 | Electrocardiogram shows ventricular bigeminy | 4008580 | Ventricular bigeminy | | | | | |
| AFLT | atrial flutter | 4065288 | EKG: atrial flutter | 314665 | Atrial flutter | | | | | |
| SVTAC | supraventricular tachycardia | 4145510 | EKG: supraventricular tachycardia | 4275423 | Supraventricular tachycardia | | | | | |
| PSVT | paroxysmal supraventricular tachycardia | 4143407 | ECG: paroxysmal ventricular tachycardia | 437579 | Paroxysmal ventricular tachycardia | | | | | |
| TRIGU | trigeminal pattern (unknown origin, SV or Ventricular) | 44791634 | Electrocardiogram shows ventricular trigeminy | 4088505 | Ventricular trigeminy | | | | | |
| | | | | | | | | | |
| UNK | Unknown | | | | | | | | | |
| MID | Normal axis | | | | | | | | | |
| LAD | Left axis deviation | 4215406 | Left axis deviation | | | | | | | |
| ALAD | Abnormal LAD, extreme left axis deviation | 4218204 | Left axis deviation greater than -90 degrees by EKG | | | | | | | |
| RAD | Right axis deviation | 4166218 | Right axis deviation | | | | | | | |
| ARAD | Abnormal RAD, extreme right axis deviation | 4166218 | Right axis deviation | | | | | | | |
| AXL | Horizontal axis | | | | | | | | | |
| AXR | Vertical axis | | | | | | | | | |
| SAG | Saggital type (S1-S2-S3 Pattern) | | | | | | | | | |
| | | | | | | | | | |
| IMI_OLD | old inferior myocardial infarction | 4121467 | Old inferior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| ASMI_OLD | oldanteroseptal myocardial infarction | 4119949 | Old anterior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4064610 | Anteroseptal infarction on electrocardiogram | | | | | | |
| ILMI_OLD | old inferolateral myocardial infarction | 4121467 | Old inferior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| AMI_OLD | old anterior myocardial infarction | 4119949 | Old anterior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4180609 | Anterior myocardial infarction on electrocardiogram | | | | | | |
| ALMI_OLD | oldanterolateral myocardial infarction | 4119949 | Old anterior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4184348 | Anterolateral infarction by electrocardiogram | | | | | | |
| INJAS_OLD | old subendocardial injury in anteroseptal leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | | | | | | |
| LMI_OLD | old lateral myocardial infarction | 4119950 | Old lateral myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4064350 | Lateral infarction on electrocardiogram | | | | | | |
| INJAL_OLD | old subendocardial injury in anterolateral leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | | | | | | |
| IPLMI_OLD | old inferoposterolateral myocardial infarction | 4121467 | Old inferior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| IPMI_OLD | old inferoposterior myocardial infarction | 4121467 | Old inferior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| INJIN_OLD | old subendocardial injury in inferior leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | | | | | | |
| PMI_OLD | old posterior myocardial infarction | 4121468 | Old posterior myocardial infarction | 314666 | Old myocardial infarction | 4064348 | EKG: old myocardial infarction | 4253065 | Posterior myocardial infarction on electrocardiogram | | | | | | |
| INJLA_OLD | old subendocardial injury in lateral leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | | | | | | |
| INJIL_OLD | old subendocardial injury in inferolateral leads | 4064611 | EKG: subendocardial infarct | 765132 | Subendocardial myocardial infarction | | | | | | | | | | |
| | | | | | | | | | | | | | | |
| IMI_AC | acute inferior myocardial infarction | 438170 | Acute myocardial infarction of inferior wall | 312327 | Acute myocardial infarction | | | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| ASMI_AC | acute anteroseptal myocardial infarction | 4267568 | Acute anteroseptal myocardial infarction | 312327 | Acute myocardial infarction | | | 4064610 | Anteroseptal infarction on electrocardiogram | | | | | | |
| ILMI_AC | acute inferolateral myocardial infarction | 438447 | Acute myocardial infarction of inferolateral wall | 312327 | Acute myocardial infarction | | | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| AMI_AC | acute anterior myocardial infarction | 434376 | Acute myocardial infarction of anterior wall | 312327 | Acute myocardial infarction | | | 4180609 | Anterior myocardial infarction on electrocardiogram | | | | | | |
| ALMI_AC | acute anterolateral myocardial infarction | 438438 | Acute myocardial infarction of anterolateral wall | 312327 | Acute myocardial infarction | | | 4184348 | Anterolateral infarction by electrocardiogram | | | | | | |
| INJAS_AC | acute subendocardial injury in anteroseptal leads | 444406 | Acute subendocardial infarction | 4064611 | EKG: subendocardial infarct | | | | | | | | | | |
| LMI_AC | acute lateral myocardial infarction | 436706 | Acute myocardial infarction of lateral wall | 312327 | Acute myocardial infarction | | | 4064350 | Lateral infarction on electrocardiogram | | | | | | |
| INJAL_AC | acute subendocardial injury in anterolateral leads | 444406 | Acute subendocardial infarction | 4064611 | EKG: subendocardial infarct | | | | | | | | | | |
| IPLMI_AC | acute inferoposterolateral myocardial infarction | 438170 | Acute myocardial infarction of inferior wall | 312327 | Acute myocardial infarction | | | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| IPMI_AC | acute inferoposterior myocardial infarction | 441579 | Acute myocardial infarction of inferoposterior wall | 312327 | Acute myocardial infarction | | | 4247796 | Inferior myocardial infarction on electrocardiogram | | | | | | |
| INJIN_AC | acute subendocardial injury in inferior leads | 444406 | Acute subendocardial infarction | 4064611 | EKG: subendocardial infarct | | | | | | | | | | |
| PMI_AC | acute posterior myocardial infarction | 319039 | Acute posterior myocardial infarction | 312327 | Acute myocardial infarction | | | 4253065 | Posterior myocardial infarction on electrocardiogram | | | | | | |
| INJLA_AC | acute subendocardial injury in lateral leads | 444406 | Acute subendocardial infarction | 4064611 | EKG: subendocardial infarct | | | | | | | | | | |
| INJIL_AC | acute subendocardial injury in inferolateral leads | 444406 | Acute subendocardial infarction | 4064611 | EKG: subendocardial infarct | | | | | | | | | | |