I46.2: Cardiac arrest due to underlying cardiac condition
I46.2, cardiac arrest due to underlying cardiac condition, is listed as a covered diagnosis in 13 Medicare billing and coding articles that apply to 46 HCPCS Level II codes, including J0153 (Injection, adenosine, 1 mg (not to be used to report any…), J1250 (Injection, dobutamine hydrochloride, per 250 mg), J1245 (Injection, dipyridamole, per 10 mg). 5 of these codes have a 2026 DMEPOS fee schedule amount; K0606 pays $3,588.90 (RR) depending on the state. The articles come from 5 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with I46.2 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| J0153 | Injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds) | Special coverage instructions apply | — | 5 |
| J1250 | Injection, dobutamine hydrochloride, per 250 mg | Special coverage instructions apply | — | 5 |
| J1245 | Injection, dipyridamole, per 10 mg | Special coverage instructions apply | — | 5 |
| A9700 | Supply of injectable contrast material for use in echocardiography, per study | Special coverage instructions apply | — | 4 |
| J3490 | Unclassified drugs | Special coverage instructions apply | — | 3 |
| A9500 | Technetium tc-99m sestamibi, diagnostic, per study dose | Carrier judgment | — | 2 |
| A9502 | Technetium tc-99m tetrofosmin, diagnostic, per study dose | Carrier judgment | — | 2 |
| A9505 | Thallium tl-201 thallous chloride, diagnostic, per millicurie | Carrier judgment | — | 2 |
| A9512 | Technetium tc-99m pertechnetate, diagnostic, per millicurie | Carrier judgment | — | 2 |
| A9560 | Technetium tc-99m labeled red blood cells, diagnostic, per study dose, up to 30 millicuries | Carrier judgment | — | 2 |
| A9538 | Technetium tc-99m pyrophosphate, diagnostic, per study dose, up to 25 millicuries | Carrier judgment | — | 2 |
| A9501 | Technetium tc-99m teboroxime, diagnostic, per study dose | Carrier judgment | — | 2 |
| Q9957 | Injection, perflutren lipid microspheres, per ml | Carrier judgment | — | 3 |
| Q9956 | Injection, octafluoropropane microspheres, per ml | Carrier judgment | — | 3 |
| Q9955 | Injection, perflexane lipid microspheres, per ml | Carrier judgment | — | 3 |
| J2785 | Injection, regadenoson, 0.1 mg | Carrier judgment | — | 3 |
| C7539 | Insertion of new or replacement of permanent pacemaker with atrial and ventricular transvenous electrode(s), with insertion of pacing electrode, cardiac venous system, for left ventricular pacing, at time of insertion of implantable defibrillator or pacemaker pulse generator (eg, for upgrade to dual chamber system) | Special coverage instructions apply | — | 1 |
| C7538 | Insertion of new or replacement of permanent pacemaker with ventricular transvenous electrode(s), with insertion of pacing electrode, cardiac venous system, for left ventricular pacing, at time of insertion of implantable defibrillator or pacemaker pulse generator (e.g., for upgrade to dual chamber system) | Special coverage instructions apply | — | 1 |
| C7540 | Removal of permanent pacemaker pulse generator with replacement of pacemaker pulse generator, dual lead system, with insertion of pacing electrode, cardiac venous system, for left ventricular pacing, at time of insertion of implantable defibrillator or pacemaker pulse generator (eg, for upgrade to dual chamber system) | Carrier judgment | — | 1 |
| C7537 | Insertion of new or replacement of permanent pacemaker with atrial transvenous electrode(s), with insertion of pacing electrode, cardiac venous system, for left ventricular pacing, at time of insertion of implantable defibrillator or pacemaker pulse generator (e.g., for upgrade to dual chamber system) | Special coverage instructions apply | — | 1 |
| G0448 | Insertion or replacement of a permanent pacing cardioverter-defibrillator system with transvenous lead(s), single or dual chamber with insertion of pacing electrode, cardiac venous system, for left ventricular pacing | Carrier judgment | — | 1 |
| K0606 | Automatic external defibrillator, with integrated electrocardiogram analysis, garment type | Carrier judgment | $3,588.90 (RR) | 1 |
| K0609 | Replacement electrodes for use with automated external defibrillator, garment type only, each | Carrier judgment | $1,148.78–$1,378.59 | 1 |
| E0617 | External defibrillator with integrated electrocardiogram analysis | Carrier judgment | $433.30–$577.30 (RR) | 1 |
| K0608 | Replacement garment for use with automated external defibrillator, each | Carrier judgment | $172.74–$230.11 (NU) | 1 |
21 more codes are listed. See every code with payment by region in Caduvo.
Medicare policy articles listing I46.2
- A56391: Billing and Coding: Implantable Automatic Defibrillators (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 5 Level II codes)
- A52458: Automatic External Defibrillators - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC); 7 Level II codes). LCD with the same title: L33690
- A58503: Billing and Coding: Echocardiography for Myocardial Perfusion (Palmetto GBA (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L38786
- A56494: Billing and Coding: Cardiovascular Nuclear Medicine (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 12 Level II codes). LCD with the same title: L33560, L33960
- A56743: Billing and Coding: Cardiovascular Nuclear Medicine (Wellpoint Federal (MAC - Part A, MAC - Part B); 9 Level II codes). LCD with the same title: L33560, L33960
- A57183: Billing and Coding: Cardiovascular Stress Testing, Including Exercise and/or Pharmacological Stress and Stress Echocardiography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 4 Level II codes). LCD with the same title: L34324
- A56500: Billing and Coding: Cardiac Catheterization and Coronary Angiography (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L33557, L33959
- A52850: Billing and Coding: Cardiac Catheterization and Coronary Angiography (Wellpoint Federal (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L33557, L33959
- A56717: Billing and Coding: Respiratory Therapy (Respiratory Care) (Palmetto GBA (MAC - Part A); 3 Level II codes). LCD with the same title: L34430
- A57224: Billing and Coding: Respiratory Care (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 3 Level II codes). LCD with the same title: L34149
- A57306: Billing and Coding: Transthoracic Echocardiography (TTE) (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 19 Level II codes). LCD with the same title: L33577, L34338
- A56781: Billing and Coding: Transthoracic Echocardiography (TTE) (Wellpoint Federal (MAC - Part A, MAC - Part B); 17 Level II codes). LCD with the same title: L33577, L34338
- A56625: Billing and Coding: Echocardiography (Palmetto GBA (MAC - Part A, MAC - Part B); 6 Level II codes). LCD with the same title: L37379
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other I46 diagnoses (Cardiac arrest)
Frequently asked questions
Does Medicare cover I46.2 (Cardiac arrest due to underlying cardiac condition)?
Medicare covers items and services, not diagnoses. 13 Medicare billing and coding articles list I46.2 as a covered diagnosis for 46 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 I46.2?
The Level II codes from the policies most specific to this diagnosis are J0153 (Injection, adenosine, 1 mg (not to be used to report any…, 5 articles); J1250 (Injection, dobutamine hydrochloride, per 250 mg, 5 articles); J1245 (Injection, dipyridamole, per 10 mg, 5 articles); A9700 (Supply of injectable contrast material for use in…, 4 articles); J3490 (Unclassified drugs, 3 articles). Code choice depends on the item supplied; check each code's descriptor.
What does Medicare pay for equipment billed with I46.2?
Under the 2026 DMEPOS fee schedule (non-rural state fees): K0606 $3,588.90 (RR); K0609 $1,148.78 to $1,378.59; E0617 $433.30 to $577.30 (RR); K0608 $172.74 to $230.11 (NU). Medicare pays 80% of the allowed amount after the Part B deductible.
Which Medicare policy articles list I46.2?
A56391 (Billing and Coding: Implantable Automatic Defibrillators); A52458 (Automatic External Defibrillators - Policy Article); A58503 (Billing and Coding: Echocardiography for Myocardial Perfusion), and 10 more articles.
What is ICD-10-CM code I46.2?
I46.2 is the ICD-10-CM code for cardiac arrest due to underlying cardiac condition, in category I46 (Cardiac arrest), chapter 9: Diseases of the circulatory system.
Next steps
- Run a reimbursement report for a device billed under J0153
- Watch J0153 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J0153
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 9: Diseases of the circulatory system · All diagnoses · HCPCS lookup