Z45.010 — Encounter for checking and testing of cardiac pacemaker pulse generator [battery]
Is Z45.010 billable?
Yes — Z45.010 is billable for FY2027. Z45.010 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Z45.010 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Z45.010 at a glance
| Code | Z45.010 |
|---|---|
| Description | Encounter for checking and testing of cardiac pacemaker pulse generator [battery] |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to Z45.010?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name Z45.010 directly.
CMS does not consider this code, on its own, sufficient justification for admission to an acute care hospital when reported as the principal diagnosis.
Which MS-DRGs does Z45.010 group to?
Z45.010 sits in MDC 05 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 314Other Circulatory System Diagnoses with MCCmedical
- 315Other Circulatory System Diagnoses with CCmedical
- 316Other Circulatory System Diagnoses without CC/MCCmedical
How is Z45.010 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Z45.010. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Removal › cardiac pulse generator (from) (of)
- Test, tests, testing › cardiac pulse generator (for)
- Change › pacemaker › pulse generator (s) (in) (of)
- Checking › cardiac pacemaker › pulse generator (of)
- Fitting › CRT-P › pulse generator (and adjustment) (of)
- Fitting › pacemaker › pulse generator (and adjustment) (of)
- Worn out › cardiac › pacemaker › battery
- Admission › adjustment › pacemaker › cardiac › pulse generator (for)
- Admission › adjustment › device NEC › implanted › cardiac › pacemaker › pulse generator (for)
Inclusion terms
Alternative wording in documentation that is classified to Z45.010.
- Encounter for replacing cardiac pacemaker pulse generator [battery]
Excludes1 — never code together — inherited from Z45
The conditions below can never be reported together with Z45.010 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- malfunction or other complications of device - see Alphabetical Index
Excludes1 — never code together — inherited from Z45.01
The conditions below can never be reported together with Z45.010 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- encounter for adjustment and management of automatic implantable cardiac defibrillator with synchronous cardiac pacemaker (Z45.02)
Excludes2 — not included here — inherited from Z40-Z53
The conditions below are not part of Z45.010, but a patient may have both at the same time. When documentation supports it, Z45.010 and the excluded code may both be reported.
- follow-up examination for medical surveillance after treatment (Z08-Z09)
Excludes2 — not included here — inherited from Z45
The conditions below are not part of Z45.010, but a patient may have both at the same time. When documentation supports it, Z45.010 and the excluded code may both be reported.
- encounter for fitting and adjustment of non-implanted device (Z46.-)
How long has Z45.010 existed?
Z45.010 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.