Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.
Applicable to
Presence of cardiac resynchronization therapy (CRT-P) pacemaker
Excludes1 (never code together)
adjustment or management of cardiac device (Z45.0-)
adjustment or management of cardiac pacemaker (Z45.0)
presence of automatic (implantable) cardiac defibrillator with synchronous cardiac pacemaker (Z95.810)
Applies from Z95 Presence of cardiac and vascular implants and grafts
Excludes2 (not included here)
complications of cardiac and vascular devices, implants and grafts (T82.-)
MS-DRG index
Defines the logic of DRG(s) 951 in MDC 23.
Approximate ICD-9-CM (GEMs)
V45.01 Cardiac pacemaker in situ
Medicare Code Edits (MCE v43.1 (April 2026))
Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.
Code annotations containing back-references to Z95.0
Back-references to Z95.0
Type 1 Excludes: Z45.018 Encounter for adjustment and management of other part of cardiac pacemaker ("presence of other part of cardiac pacemaker (Z95.0)")
Back-references to Z95
Type 1 Excludes: Z18 Retained foreign body fragments ("in situ cardiac device (Z95.-)")
Type 2 Excludes: Z46 Encounter for fitting and adjustment of other devices ("presence of prosthetic and other devices (Z95-Z97)")
Type 2 Excludes: Z78 Other specified health status ("postprocedural status (Z93-Z99)")
Type 2 Excludes: Z87.7 Personal history of (corrected) congenital malformations ("presence of cardiac and vascular implants and grafts (Z95.-)")
Type 2 Excludes: Z94 Transplanted organ and tissue status ("presence of vascular grafts (Z95.-)")