Z95.811 Presence of heart assist device

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis. Exempt from present-on-admission (POA) reporting.

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.-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 223 — Heart Failure with Heart Assist Device/Artificial Heart
• CMS-HCC V22: HCC 186 — Major Organ Transplant or Replacement Status
• ESRD V24: HCC 186

MS-DRG index

Defines the logic of DRG(s) 314-316 in MDC 05.

Approximate ICD-9-CM (GEMs)

• V43.21 Organ or tissue replaced by other means, heart assist device

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 Z95.811

Back-references to Z95.811

• Type 2 Excludes: Z45.018 Encounter for adjustment and management of other part of cardiac pacemaker ("presence of prosthetic and other devices (Z95.1-Z95.5, Z95.811-Z97)")

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.-)")

Diagnosis Index entries for Z95.811

• Presence (of) › device (external) NEC › heart assist
• Presence (of) › heart assist device

Nearby codes

• Z95.4 Presence of other heart-valve replacement
• Z95.5 Presence of coronary angioplasty implant and graft
• Z95.8 Presence of other cardiac and vascular implants and grafts
• Z95.81 Presence of other cardiac implants and grafts
• Z95.810 Presence of automatic (implantable) cardiac defibrillator
• Z95.811 Presence of heart assist device (this code)
• Z95.812 Presence of fully implantable artificial heart
• Z95.818 Presence of other cardiac implants and grafts
• Z95.82 Presence of other vascular implants and grafts
• Z95.820 Peripheral vascular angioplasty status with implants and grafts
• Z95.828 Presence of other vascular implants and grafts