Z45.018Encounter for adjustment and management of other part of cardiac pacemaker

Z45.018 is the ICD-10-CM diagnosis code for encounter for adjustment and management of other part of cardiac pacemaker. It belongs to category Z45 (encounter for adjustment and management of implanted device), block Z40-Z53 (Encounters for other specific health care) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

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).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 314 (Other Circulatory System Diagnoses with MCC, relative weight 2.0873), DRG 315 (Other Circulatory System Diagnoses with CC, relative weight 0.9508) and DRG 316 (Other Circulatory System Diagnoses without CC/MCC, relative weight 0.6677), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

When it is the principal diagnosis, Medicare considers it a questionable reason for an inpatient admission, so claims may be reviewed.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as V53.31 (fitting and adjustment of cardiac pacemaker).