ICD-10-CM 2027
ICD-10 code for tissue transplant
From the official ICD-10-CM alphabetic index entry “Transplant (ed) (status) › tissue”. Page updated September 29, 2026.
About coding tissue transplant
The ICD-10-CM code for tissue transplant is Z94.9 (Transplanted organ and tissue status, unspecified).
Within Z94, choose Z94.9 (unspecified) only when documentation doesn't support a more specific option: kidney transplant status (Z94.0), heart transplant status (Z94.1), lung transplant status (Z94.2), heart and lungs transplant status (Z94.3), liver transplant status (Z94.4), skin transplant status (Z94.5), bone transplant status (Z94.6), corneal transplant status (Z94.7) and 1 more.
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 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about tissue transplant ICD-10 codes
What is the ICD-10 code for tissue transplant?
- Z94.9 — Transplanted organ and tissue status, unspecified.
Is Z94.9 billable?
- Yes. Z94.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z94.9 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z94.9 a CC or MCC?
- No. Z94.9 is neither a CC nor an MCC under MS-DRG v44.0.