ICD-10-CM 2027
ICD-10 code for pacemaker change
Encounter for adjustment and management of other part of cardiac pacemaker
From the official ICD-10-CM alphabetic index entry “Change (s) (in) (of) › pacemaker”. Page updated September 29, 2026.
About coding pacemaker change
The ICD-10-CM code for pacemaker change is Z45.018 (Encounter for adjustment and management of other part of cardiac pacemaker). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Z45.018.
Within Z45.01, choose Z45.018 (adjustment and management of other part of cardiac pacemaker) only when documentation doesn't support a more specific option: checking and testing of cardiac pacemaker pulse generator [battery] (Z45.010).
Don't report Z45.018 together with the conditions in its Excludes1 note: presence of other part of cardiac pacemaker (Z95.0).
The conditions in its Excludes2 note aren't part of Z45.018, but may be coded alongside it if the patient has both: presence of prosthetic and other devices (Z95.1-Z95.5, Z95.811-Z97).
More specific pacemaker change codes (official index)
- pulse generator Z45.010 — Encounter for checking and testing of cardiac pacemaker pulse generator [battery]
Don't confuse with (Excludes1 for Z45.018)
- presence of other part of cardiac pacemaker (Z95.0)
Common questions about pacemaker change ICD-10 codes
What is the ICD-10 code for pacemaker change?
- Z45.018 — Encounter for adjustment and management of other part of cardiac pacemaker. More specific codes apply when the documentation supports them: Z45.010.
What is the ICD-10 code for pulse generator pacemaker change?
- Z45.010 — Encounter for checking and testing of cardiac pacemaker pulse generator [battery].
Is Z45.018 billable?
- Yes. Z45.018 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z45.018 be used as a principal diagnosis?
- It can, but When it is the principal diagnosis, Medicare considers it a questionable reason for an inpatient admission, so claims may be reviewed.
Is Z45.018 a CC or MCC?
- No. Z45.018 is neither a CC nor an MCC under MS-DRG v44.0.