Z45.02 — Encounter for adjustment and management of automatic implantable cardiac defibrillator
Z45.02 is a billable, specific ICD-10-CM code for encounter for adjustment and management of automatic implantable cardiac defibrillator. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Encounter for adjustment and management of automatic implantable cardiac defibrillator with synchronous cardiac pacemaker
- Encounter for adjustment and management of cardiac resynchronization therapy defibrillator (CRT-D)
Excludes1 inherited from the categories above Z45.02
These are not written on Z45.02, but they bind it: a note on a category applies to every code beneath it. Billing Z45.02 with anything listed here is a denial.
Written on Z45 — Encounter for adjustment and management of implanted device
- malfunction or other complications of device - see Alphabetical Index
Excludes2 inherited from the categories above Z45.02
Also inherited, and the opposite of Excludes1: these conditions are not part of Z45.02, but a patient can have both, so you may code both.
Other codes that can never be billed with Z45.02
These codes carry an Excludes1 note pointing at Z45.02. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z45.02 alone.
- Z45.01Encounter for adjustment and management of cardiac pacemaker
Risk adjustment
Z45.02 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
Z45.02 is named in 11 Medicare coverage policies — 11 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56391Billing and Coding: Implantable Automatic Defibrillators
- A56391Billing and Coding: Implantable Automatic Defibrillators
- A56602Billing and Coding: Cardiac Rhythm Device Evaluation
- A57038Billing and Coding: Surveillance of Implantable or Wearable Cardioverter Defibrillators (ICDs): Office, Hospital, Web, or Non-Web Based
How Z45.02 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Z45.02.
- Fitting›automatic implantable cardiac defibrillator(with synchronous cardiac pacemaker)
- Fitting›CRT-D(resynchronization therapy defibrillator)
- Interrogation›cardiac defibrillator(automatic) (implantable)
- Worn out›cardiac›defibrillator(with synchronous cardiac pacemaker)
- Admission›adjustment›device NEC›implanted›cardiac›defibrillator(with synchronous cardiac pacemaker)
- Admission›adjustment›device NEC›implanted›cardiac›resynchronization therapy defibrillator(CRT-D)
Code history
Z45.02 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share Z45.0. If Z45.02 is not quite right, the correct code is usually one of these.
Questions about Z45.02
- Is Z45.02 a billable ICD-10-CM code?
- Yes. Z45.02 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z45.02 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Encounters for other specific health care (Z40-Z53).
- What cannot be coded together with Z45.02?
- Z45.02 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above Z45.02 (Z45) and apply to it just the same.