Discriminators (most significant listed first)
dOffset dSuffix dDescription
0   {base pattern} 
1 _TIME_POINT  time point 
2 _DURN  duration 
3 _PEAK  peak 
4 _ONSET  onset (start) 
5 _OFFSET  offset (end) 
6 _ONSET_IMPL  implied onset (start) 
7 _OFFSET_IMPL  implied offset (end) 
8 _EVENT  event 
9 _COUNT  count (of events) 
10 _RATE  rate (of event) 
11 _RATE_MAX  maximum rate 
12 _RATE_MIN  minimum rate 
13 _RATE_MEAN  mean (average) rate 
14 _TIME  time of event (nonspecific) 
15 _ANNOT  annotation 
ECG Rhythm Annotations
SysName REFID Mnemonic Description PART CODE10
Pattern, Sinus Rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SINUS_RHY SR Sinus Rhythm 10 9216
Pattern, Normal Sinus Rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SINUS_NORMAL_RHY NSR Normal Sinus Rhythm 10 9232
Pattern, Sinus Bradycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SINUS_BRADY SBRAD Sinus Bradycardia 10 9248
Pattern, Sinus Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SINUS_TACHY STACH Sinus Tachycardia 10 9264
Pattern, Sinus Arrhythmia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SINUS_ARRHY SAR Sinus Arrhythmia 10 9280
Pattern, Respiratory Sinus Arrhythmia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_RESP_ARRHY RSAR Respiratory Sinus Arrhythmia 10 9296
Pattern, Non-Respiratory Sinus Arrhythmia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_NON_RESP_ARRHY NRSAR Non-Respiratory Sinus Arrhythmia 10 9312
Pattern, Wandering Sinus Pacemaker, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_WANDP_ARRHY WANDP Wandering Sinus Pacemaker 10 9328
Pattern, Wandering Pacemaker, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_WANDPAV_ARRHY WANDPAV Wandering Pacemaker 10 9344
Pattern, Atrial Ectopic Rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_ECT_RHY AER Atrial Ectopic Rhythm 10 9360
Pattern, Atrial Bigeminy, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_BIGEM AB Atrial Bigeminy 10 9376
Pattern, Atrial Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_TACHY AT Atrial Tachycardia 10 9392
Pattern, Paroxsysmal Atrial Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_TACHY_PAROX PAT Paroxsysmal Atrial Tachycardia ("abrupt") 10 9408
Pattern, Multifocal Atrial Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_TACHY_MF MAT Multifocal Atrial Tachycardia ("chaotic") 10 9424
Pattern, Automatic Atrial Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_TACHY_AUTO AUTOTACH Automatic Atrial Tachycardia (with "warmup" ) 10 9440
Pattern, Atrial flutter, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_FLUT AFLUT Atrial flutter 10 9456
Pattern, Atrial fibrillation, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ATR_FIB AFIB Atrial fibrillation 10 9472
Pattern, Supraventricular (atrial or junctional) ectopic rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SV_ECT_RHY SVER Supraventricular (atrial or junctional) ectopic rhythm 10 9488
Pattern, Supraventricular tachycardia (atrial or junctional), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SV_TACHY SVTACH Supraventricular tachycardia (atrial or junctional) 10 9504
Pattern, Supraventricular Paroxsysmal Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SV_TACHY_PAROX SVPAT Supraventricular Paroxsysmal Tachycardia 10 9520
Pattern, AV junctional (nodal) rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_JUNC_RHY JUNC AV junctional (nodal) rhythm 10 9536
Pattern, AV junctional (nodal) escape rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_JUNC_ESC_BEATS JESCR AV junctional (nodal) escape rhythm 10 9552
Pattern, Accelerated AV junctional (nodal) rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_JUNC_ACCEL JACLR Accelerated AV junctional (nodal) rhythm 10 9568
Pattern, Junctional Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_JUNC_TACHY JTACH Junctional Tachycardia 10 9584
Pattern, AV reciprocating tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_TACHY_RECIP RECPTACH AV reciprocating tachycardia 10 9600
Pattern, Reentrant AV nodal tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_TACHY_REENTRANT RAVTACH Reentrant AV nodal tachycardia 10 9616
Pattern, First Degree AV Block, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_HEART_BLK_DEG_1 1AVB First Degree AV Block 10 9632
Pattern, Second Degree AV Block, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_HEART_BLK_DEG_2 2AVB Second Degree AV Block 10 9648
Pattern, Second Degree AV Block Type I, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_HEART_BLK_DEG_2_I 2AVBI Second Degree AV Block Type I (Wenckebach) or (Mobitz Type I) 10 9664
Pattern, Second Degree AV Block Type II, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_HEART_BLK_DEG_2_II 2AVBII Second Degree AV Block Type II (Mobitz Type II) 10 9680
Pattern, Third Degree AV Block, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_HEART_BLK_DEG_3 3AVB Third Degree AV Block (complete AV block) 10 9696
Pattern, AV Dissociation, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_DISSOC AVDIS AV Dissociation 10 9712
Pattern, AV dissociation with interference, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_DISSOC_INT AVDISINT AV dissociation with interference 10 9728
Pattern, Isorhythmic AV dissociation, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_DISSOC_ISO AVDISISO Isorhythmic AV dissociation 10 9744
Pattern, Complete AV dissociation, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_AV_DISSOC_COMP AVDISCMP Complete AV dissociation 10 9760
Pattern, First Degree SA Block, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SA_HEART_BLK_DEG_1 1SAB First Degree SA Block 10 9776
Pattern, Second Degree SA Block Type I, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SA_HEART_BLK_DEG_2_I 2SABI Second Degree SA Block Type I (Wenckebach) 10 9792
Pattern, Second Degree SA Block Type II, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SA_HEART_BLK_DEG_2_II 2SABII Second Degree SA Block Type II 10 9808
Pattern, Third Degree SA Block, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_SA_HEART_BLK_DEG_3 3SAB Third Degree SA Block (complete SA block) 10 9824
Pattern, Ventricular rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_RHY VRHY Ventricular rhythm 10 9840
Pattern, Idioventricular (ventricular escape) rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_IDIO_RHY IVR Idioventricular (ventricular escape) rhythm 10 9856
Pattern, Ventricular Parasystole, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_PARA VPARA Ventricular Parasystole 10 9872
Pattern, Accelerated idioventricular rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_AIVR AIVR Accelerated idioventricular rhythm 10 9888
Pattern, Slow Ventricular Tachycardia (Idioventricular Tachycardia), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_IDIO_TACHY SLOVTACH Slow Ventricular Tachycardia (Idioventricular Tachycardia) 10 9904
Pattern, Slow Ventricular Rate, beats likely of ventricular origin, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_BRADY VBRADY Slow Ventricular Rate, beats likely of ventricular origin, but existence of P-waves is unknown 10 10464
Pattern, Ventricular Bigeminy, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_BIGEM VBIGEM Ventricular Bigeminy 10 9920
Pattern, Ventricular Trigeminy, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_TRIGEM VTRIGEM Ventricular Trigeminy 10 9936
Pattern, Ventricular Couplet, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_P_C_CPLT VCPLT Ventricular Couplet 10 9952
Pattern, Ventricular Run, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_P_C_RUN VRUN Ventricular Run 10 9968
Pattern, Ventricular Tachycardia (nonparoxysmal), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_TACHY VTACH VT Ventricular Tachycardia (nonparoxysmal) 10 9984
Pattern, Ventricular Flutter, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_FLUT VFLUT Ventricular Flutter 10 10000
Pattern, Ventricular Fibrillation ("chaotic"), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_FIB VFIB Ventricular Fibrillation ("chaotic") 10 10016
Pattern, Nonsustained Ventricular Tachycardia (paroxysmal), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_TACHY_PAROX NSUSVT Nonsustained Ventricular Tachycardia (paroxysmal) 10 10032
Pattern, Sustained Monomorphic Ventricular Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_TACHY_MONO SUSVT Sustained Monomorphic Ventricular Tachycardia 10 10048
Pattern, Polymorphic Ventricular Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_TACHY_POLY POLYVT Polymorphic Ventricular Tachycardia 10 10064
Pattern, Torsades de Pointes Ventricular Tachycardia, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_V_TACHY_TDP TDPVT Torsades de Pointes Ventricular Tachycardia 10 10080
Pattern, Pre-excitation (least specific), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_PREX PREX Pre-excitation (least specific) 10 10096
Pattern, Wolf-Parkinson-White syndrome, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_WPW_UNK WPW Wolf-Parkinson-White syndrome (less specific) 10 10112
Pattern, Wolf-Parkinson Type A, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_WPW_A WPWA Wolf-Parkinson Type A 10 10128
Pattern, Wolf-Parkinson Type B, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_WPW_B WPWB Wolf-Parkinson Type B 10 10144
Pattern, Lown-Ganong-Levine syndrome, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_LGL LGL Lown-Ganong-Levine syndrome 10 10160
Pattern, Atrial Demand Mode Pacing, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPADM EPADM Atrial Demand Mode Pacing 10 10176
Pattern, Atrial Capture, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAC EPAC Atrial Capture 10 10192
Pattern, Atrial Failure to Capture, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAFC EPAFC Atrial Failure to Capture 10 10208
Pattern, Atrial Failure to Sense, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAFS EPAFS Atrial Failure to Sense 10 10224
Pattern, Ventricular Demand Mode, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVDM EPVDM Ventricular Demand Mode 10 10240
Pattern, Ventricular Capture, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVC EPVC Ventricular Capture 10 10256
Pattern, Ventricular Failure to Capture, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVFC EPVFC Ventricular Failure to Capture 10 10272
Pattern, Ventricular Failure to Sense, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVFS EPVFS Ventricular Failure to Sense 10 10288
Pattern, Anti-Tachycardia Pacing, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAVT EPAVT Anti-Tachycardia Pacing 10 10304
Pattern, Pause or missing beat, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_MISSB MISSB Pause or missing beat (due to any reason) 10 10320
Pattern, Asystole, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_ASYSTOLE ASYSTOLE ASYS Asystole 10 10336
Pattern, Irregular rhythm, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_IRREG IRREG Irregular rhythm 10 10352
Pattern, Low Heart Rate Variability, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_LHRV LHRV Low Heart Rate Variability 10 10368
Pattern, ST change from some baseline beyond some threshold, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_STELVATION STELEVATION ST change from some baseline beyond some threshold 10 10384
Pattern, Absolute ST measurement beyond some threshold, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_STHILOST STHILOST Absolute ST measurement beyond some threshold 10 10400
Pattern, T-wave alternans, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_TALT TWA T-wave alternans 10 10416
Pattern, Bradycardia of any type, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_BRADY BRADY Bradycardia of any type 10 10432
Pattern, Calibration signal, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_CALS CALS Calibration signal (sustained) 10 10448
Pattern, Atrial pacemaker spike expected but missing, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAX EPAX Atrial spike expected, but missing 10 10480
Pattern, Inadequate atrial pacemaker spike, not capturable (loss of output), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAXLO EPAXLO Inadequate atrial spike, not capturable (loss of output) 10 10496
Pattern, Atrial pacemaker spike expected but missing (failure to output), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPAXFO EPAXFO Atrial spike expected, but missing (failure to output) 10 10512
Pattern, Ventricular pacemaker spike expected but missing, Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVX EPVX Ventricular spike expected, but missing 10 10528
Pattern, Inadequate ventricular pacemaker spike, not capturable (loss of output), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVXLO EPVXLO Inadequate ventricular spike, not capturable (loss of output) 10 10544
Pattern, Ventricular pacemaker spike expected but missing (failure to output), Base pattern | ECG, Heart | CVS MDC_ECG_RHY_EPVXFO EPVXFO Ventricular spike expected, but missing (failure to output) 10 10560
1 Formerly called "nodal", now "AV junctional", since the AV node itself has no automaticity (Circulation 1973; 47:64 and 48:304). The term ‘junctional’ appears to be more widely used today, and several of the mnemonics shown here have been updated, including the "NPC" and "NESC" mnemonics originally used in the MIT-BIH database. back
2 The pacemaker rhythm section could be expanded if there is sufficient time and interest (most of this information can be conveyed using BEAT and WAVP annotations, however). back