Z94.3 Heart and lungs transplant status

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 Z94 Transplanted organ and tissue status

Includes

• organ or tissue replaced by heterogenous or homogenous transplant

Excludes1 (never code together)

• complications of transplanted organ or tissue - see Alphabetical Index

Excludes2 (not included here)

• presence of vascular grafts (Z95.-)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 276 — Lung Transplant Status/Complications

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• V42.1 Heart replaced by transplant (approximate)
• V42.6 Lung replaced by transplant (approximate)

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 Z94.3

Back-references to Z94

• Type 1 Excludes: Z18 Retained foreign body fragments ("organ or tissue replaced by transplant (Z94.-)")
• Type 2 Excludes: Z78 Other specified health status ("postprocedural status (Z93-Z99)")
• Type 2 Excludes: Z87.7 Personal history of (corrected) congenital malformations ("transplanted organ and tissue status (Z94.-)")

Diagnosis Index entries for Z94.3

• Transplant (ed) (status) › heart › and lung (s)
• Transplant (ed) (status) › lung (s) › and heart

Nearby codes

• Z94 Transplanted organ and tissue status
• Z94.0 Kidney transplant status
• Z94.1 Heart transplant status
• Z94.2 Lung transplant status
• Z94.3 Heart and lungs transplant status (this code)
• Z94.4 Liver transplant status
• Z94.5 Skin transplant status
• Z94.6 Bone transplant status
• Z94.7 Corneal transplant status
• Z94.8 Other transplanted organ and tissue status