Z45.018 ICD-10-CM Code: Encounter for adjustment and management of other part of cardiac pacemaker
HCC Buddy Code Card
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FY 2026 Apr update / Factors influencing health status and contact with health services (Z00-Z99) / Encounters for other specific health care (Z40-Z53)
Z45.018
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceEncounter for adjustment and management of other part of cardiac pacemaker
A patient visit to adjust or manage other components of a cardiac pacemaker besides the battery.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Encounter for adjustment and management of cardiac resynchronization therapy pacemaker (CRT-P)
Excludes 2
Official- presence of prosthetic and other devices (Z95.1-Z95.5, Z95.811-Z97)
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for Z45.018 in this effective period.
Excludes 1
Official- presence of other part of cardiac pacemaker (Z95.0)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for Z45.018 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for Z45.018 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for Z45.018 in this effective period.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is Z45.018 an HCC code?
No. Z45.018 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- Z45.018
- Description
- Encounter for adjustment and management of other part of cardiac pacemaker
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Z45.018 is the ICD-10-CM diagnosis code for encounter for adjustment and management of other part of cardiac pacemaker. A patient visit to adjust or manage other components of a cardiac pacemaker besides the battery. Z45.018 sits in the ICD-10-CM chapter for factors influencing health status and contact with health services (z00-z99), within the section covering encounters for other specific health care (z40-z53).
Z45.018 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Use this code for adjustments to pacemaker settings, leads, or other components not covered by Z45.010.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for Z45.018 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code for adjustments to pacemaker settings, leads, or other components not covered by Z45.010
- •Specify what part of the pacemaker is being adjusted in the medical record for clarity
Excludes 1, Do NOT code together
- presence of other part of cardiac pacemaker (Z95.0)