EMDN J01: Cardiac Functionality Implantable Devices
Complete hierarchy for EMDN group J01 in category J (Active-Implantable Devices): 55 terminal codes, EMDN v2026. Terminal codes are the ones accepted in a EUDAMED device record.
Registered classes, as of 8 Sep 2026. For each code with at least 20 registrations under a legislation, the chip shows how devices registered in EUDAMED under that code are classed, counted once per primary UDI-DI and kept separate for each legislation. It is not a determination. The class of a device comes from the MDR and IVDR classification rules for its intended purpose. MDD and IVDD classes are the directive classification and can differ from the class the same device would have under MDR or IVDR.
J01Cardiac Functionality Implantable DevicesJ0101Implantable PacemakersJ010101Implantable Single Chamber PacemakersJ01010101Implantable Single Chamber Pacemakers (Sc)terminalJ01010102Implantable Single Chamber Pacemakers with Sensor (Sr)terminal
J010102Implantable Single Lead PacemakersJ01010201Implantable Single Lead VDD PacemakersterminalJ01010202Implantable Single Lead VDDR Pacemakers with Sensorterminal
J010103Implantable Dual Chamber PacemakersJ01010301Implantable Dual Chamber Pacemakers (Dc)terminalJ01010302Implantable Dual Chamber Pacemakers with Sensor (Dr)terminal
J010104Implantable Triple Chamber PacemakersJ01010401Implantable Triple Chamber Pacemakers for Cardiac Resynchronization (Tr)terminal
J010105Implantable Pacemakers with Incorporated Electrodes (Leadless)terminalJ010180Implantable Pacemakers - AccessoriesterminalJ010199Implantable Pacemakers - Otherterminal
J0102Implantable Cardiac Diagnostic DevicesJ010201Implantable Diagnostic Arrhythmias Recording Cardiac DevicesterminalJ010280Implantable Cardiac Diagnostic Devices - AccessoriesterminalJ010299Implantable Cardiac Diagnostic Devices - Otherterminal
J0103Implantable Ventricular Assistance SystemsJ010301Implantable Monoventricular and Biventricular Assistance SystemsJ01030101Implantable Right Monoventricular Assistance Systems (Rvad)terminalJ01030102Implantable Left Monoventricular Assistance Systems (Lvad)MDR 100.0% Class III · n=35terminalRegistered in EUDAMED under MDR with this code: 35 of 35 devices carry Class III on their registration (as of 8 Sep 2026).
- 35 Class III (100.0%)
Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination.
J01030103Implantable Biventricular Assistance Systems (Bivad)terminal
J010380Implantable Ventricular Assistance Systems - AccessoriesterminalJ010399Implantable Ventricular Assistance Systems - Otherterminal
J0104Implantable Artificial Heart and Implant KitsJ010401Implantable Artificial Heart and Implant KitsterminalJ010480Implantable Artificial Heart and Implant Kits - AccessoriesterminalJ010499Implantable Artificial Heart and Implant Kits - Otherterminal
J0105Implantable DefibrillatorsJ010501Implantable Single Chamber DefibrillatorsRegistered in EUDAMED under MDR with this code: 42 of 42 devices carry Class III on their registration (as of 8 Sep 2026).
- 42 Class III (100.0%)
Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination.
J010502Implantable Dual Chamber DefibrillatorsRegistered in EUDAMED under MDR with this code: 42 of 42 devices carry Class III on their registration (as of 8 Sep 2026).
- 42 Class III (100.0%)
Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination.
J010503Implantable Triple Chamber DefibrillatorsRegistered in EUDAMED under MDR with this code: 74 of 74 devices carry Class III on their registration (as of 8 Sep 2026).
- 74 Class III (100.0%)
Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination.
J010504Subcutaneous Implantable DefibrillatorsterminalJ010580Implantable Defibrillators - AccessoriesterminalJ010599Implantable Defibrillators - Otherterminal
J0106Cardiac Contractility Modulation Implantable DevicesterminalJ0107Active Implantable Cardiac Devices Remote Monitoring SystemsJ010701Pulmonary Blood Pressure Remote Monitoring Systems (Including Sensors)terminalJ010702Pacemaker and Implantable Defibrillator Remote Monitoring SystemsMDR 100.0% Class III · n=22terminalRegistered in EUDAMED under MDR with this code: 22 of 22 devices carry Class III on their registration (as of 8 Sep 2026).
- 22 Class III (100.0%)
Counted once per primary UDI-DI, using the class on the registration. The class of a device comes from the MDR and IVDR classification rules for its intended purpose, so a code is evidence of how others registered, not a determination.
J010780Active Implantable Cardiac Devices Remote Monitoring Systems - Hardware AccessoriesterminalJ010782Active Implantable Cardiac Devices Remote Monitoring Systems - Software AccessoriesterminalJ010792Active Implantable Cardiac Devices Remote Monitoring Systems - Medical Device SoftwareterminalJ010799Active Implantable Cardiac Devices Remote Monitoring Systems - Otherterminal
J0190Implantable Cardiac Devices - VariousJ019001Permanent Cardiac LeadsJ01900101Permanent Pacemaker Leads (with or W/O Steroid-Elution)J0190010101Endocardial Atrial and Ventricular Leads, UnipolarJ019001010101Atrial Leads, Passive FixationterminalJ019001010102Ventricular Leads, Passive Fixationterminal
J0190010102Endocardial Atrial and Ventricular Leads, Bipolar (with Active or Passive Fixation)terminalJ0190010103Left Ventricular Leads with Coronary Sinus Cannulation System (Triple Chamber P.m.)terminalJ0190010104Endocardial Pacemaker Leads, Single-LeadterminalJ0190010105Epicardial Permanent Cardiac Leadsterminal
J01900102Permanent Defibrillator Leads (Steroid Release Included)J0190010201Permanent Pacing and Defibrillation Right Ventricular Leads (with Active and Passive Fixation)J019001020101Permanent Cardiac Defibrillator Leads, Single CoilterminalJ019001020102Permanent Cardiac Defibrillator Leads, Double CoilterminalJ019001020199Permanent Pacing and Defibrillation Right Ventricular Leads - Otherterminal
J0190010202Permanent Subcutaneous Defibrillator Leadsterminal
J01900180Permanent Cardiac Leads - AccessoriesterminalJ01900199Permanent Cardiac Leads - Otherterminal
J019002Implantable Cardiac Devices Programmers and AccessoriesJ01900203Implantable Cardiac Devices ProgrammersterminalJ01900280Implantable Cardiac Devices Programmers - Hardware AccessoryterminalJ01900282Implantable Cardiac Devices Programmers - Software AccessoryterminalJ01900285Implantable Cardiac Devices Programmers - ConsumablesterminalJ01900292Implantable Cardiac Devices Programmers - Medical Device Softwareterminal
J019003Active-Implantable Cardiac Systems Magnetised DevicesterminalJ019004Active-Implantable Cardiac Systems AdaptorsterminalJ019005Cardiac Leads Extraction SystemsterminalJ019099Implantable Cardiac Devices - Otherterminal
How J01 is structured
The Cardiac Functionality Implantable Devices branch runs 5 levels deep. 21 entries below are branch headings that group other codes rather than naming a device, so a classification has to resolve all the way down to one of the 55 codes marked terminal.
9 terminal codes are “- Other” entries and 8 are “- Accessories” entries, 31% of the branch. An “- Other” code is the residual slot for devices its siblings do not name, so it is worth ruling out every specific sibling before settling on one.
The largest sub-branch is J0190 (Implantable Cardiac Devices - Various), holding 21 of the 55 terminal codes.
Frequently asked questions
- Which J01 codes can be used in a EUDAMED device record?
- 55 of the 76 codes listed under J01 (Cardiac Functionality Implantable Devices) are terminal and can be selected. The other 21 are branch headings that cannot.
- How deep is the J01 hierarchy?
- The J01 branch runs 5 levels below the group code. Its largest sub-branch is J0190 (Implantable Cardiac Devices - Various), which holds 21 of the 55 terminal codes.
- How many J01 codes are catch-all entries?
- 9 terminal codes under J01 are "- Other" entries and 8 are "- Accessories" entries, 31% of the branch. The remaining 38 name a specific device type.
Not sure which level to stop at, or which of two plausible codes to submit? The guide to choosing an EMDN code walks the decision level by level, with a worked example and the mistakes that get a EUDAMED registration rejected.
Classifying more than a handful of devices?
EUDAMate maps your device list against all 6,773 terminal EMDN codes with confidence-scored suggestions you review and confirm. Start with a free Readiness Check on your own data.
Run a free Readiness CheckOther groups in category J
Source: European Commission, EMDN v2026 official release. Terminal codes are the only codes accepted in a EUDAMED device record. EMDN is a nomenclature, not a risk classification. MDR/IVDR class is determined separately.