ICD-10-CM 2027
ICD-10 code for transplant complication
T86.90
Unspecified complication of unspecified transplanted organ and tissue
✓ Billable / specificCC — complication/comorbidity
From the official ICD-10-CM alphabetic index entry “Complication (s) (from) (of) › transplant”. Page updated September 29, 2026.
About coding transplant complication
The ICD-10-CM code for transplant complication is T86.90 (Unspecified complication of unspecified transplanted organ and tissue). The official index lists 75 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on T86.90.
Within T86.9, choose T86.90 (Unspecified complication of unspecified transplanted organ and tissue) only when documentation doesn't support a more specific option: unspecified transplanted organ and tissue rejection (T86.91), unspecified transplanted organ and tissue failure (T86.92), unspecified transplanted organ and tissue infection (T86.93) and other complications of unspecified transplanted organ and tissue (T86.99).
Use an additional code to identify other transplant complications, such as: graft-versus-host disease (D89.81-), malignancy associated with organ transplant (C80.2) and post-transplant lymphoproliferative disorders (PTLD) (D47.Z1).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
More specific transplant complication codes (official index)
- bone T86.839 — Unspecified complication of bone graft
- failure T86.831 — Bone graft failure
- infection T86.832 — Bone graft infection
- rejection T86.830 — Bone graft rejection
- specified type NEC T86.838 — Other complications of bone graft
- bone marrow T86.00 — Unspecified complication of bone marrow transplant
- failure T86.02 — Bone marrow transplant failure
- infection T86.03 — Bone marrow transplant infection
- rejection T86.01 — Bone marrow transplant rejection
- specified type NEC T86.09 — Other complications of bone marrow transplant
- cornea T86.849 — Unspecified complication of corneal transplant
- failure T86.841 — Corneal transplant failure
- infection T86.842 — Corneal transplant infection
- rejection T86.840 — Corneal transplant rejection
- specified type NEC T86.848 — Other complications of corneal transplant
- failure T86.92 — Unspecified transplanted organ and tissue failure
- heart T86.20 — Unspecified complication of heart transplant
- with lung T86.30 — Unspecified complication of heart-lung transplant
- cardiac allograft vasculopathy T86.290 — Cardiac allograft vasculopathy
- failure T86.32 — Heart-lung transplant failure
- infection T86.33 — Heart-lung transplant infection
- rejection T86.31 — Heart-lung transplant rejection
- specified type NEC T86.39 — Other complications of heart-lung transplant
- failure T86.22 — Heart transplant failure
- infection T86.23 — Heart transplant infection
- rejection T86.21 — Heart transplant rejection
- specified type NEC T86.298 — Other complications of heart transplant
- infection T86.93 — Unspecified transplanted organ and tissue infection
- intestine T86.859 — Unspecified complication of intestine transplant
- failure T86.851 — Intestine transplant failure
- infection T86.852 — Intestine transplant infection
- rejection T86.850 — Intestine transplant rejection
- specified type NEC T86.858 — Other complications of intestine transplant
- kidney T86.10 — Unspecified complication of kidney transplant
- failure T86.12 — Kidney transplant failure
- infection T86.13 — Kidney transplant infection
- rejection T86.11 — Kidney transplant rejection
- specified type NEC T86.19 — Other complication of kidney transplant
- liver T86.40 — Unspecified complication of liver transplant
- failure T86.42 — Liver transplant failure
- infection T86.43 — Liver transplant infection
- rejection T86.41 — Liver transplant rejection
- specified type NEC T86.49 — Other complications of liver transplant
- lung T86.819 — Unspecified complication of lung transplant
- with heart T86.30 — Unspecified complication of heart-lung transplant
- failure T86.32 — Heart-lung transplant failure
- infection T86.33 — Heart-lung transplant infection
- rejection T86.31 — Heart-lung transplant rejection
- specified type NEC T86.39 — Other complications of heart-lung transplant
- failure T86.811 — Lung transplant failure
- infection T86.812 — Lung transplant infection
- rejection T86.810 — Lung transplant rejection
- specified type NEC T86.818 — Other complications of lung transplant
- malignant neoplasm C80.2 — Malignant neoplasm associated with transplanted organ
- pancreas T86.899 — Unspecified complication of other transplanted tissue
- failure T86.891 — Other transplanted tissue failure
- infection T86.892 — Other transplanted tissue infection
- rejection T86.890 — Other transplanted tissue rejection
- specified type NEC T86.898 — Other complications of other transplanted tissue
- peripheral blood stem cells T86.5 — Complications of stem cell transplant
- post-transplant lymphoproliferative disorder (PTLD) D47.Z1 — Post-transplant lymphoproliferative disorder (PTLD)
- rejection T86.91 — Unspecified transplanted organ and tissue rejection
- skin T86.829 — Unspecified complication of skin graft (allograft) (autograft)
- failure T86.821 — Skin graft (allograft) (autograft) failure
- infection T86.822 — Skin graft (allograft) (autograft) infection
- rejection T86.820 — Skin graft (allograft) rejection
- specified type NEC T86.828 — Other complications of skin graft (allograft) (autograft)
- specified
- tissue T86.899 — Unspecified complication of other transplanted tissue
- failure T86.891 — Other transplanted tissue failure
- infection T86.892 — Other transplanted tissue infection
- rejection T86.890 — Other transplanted tissue rejection
- specified type NEC T86.898 — Other complications of other transplanted tissue
- type NEC T86.99 — Other complications of unspecified transplanted organ and tissue
- stem cell (from peripheral blood) (from umbilical cord) T86.5 — Complications of stem cell transplant
- umbilical cord stem cells T86.5 — Complications of stem cell transplant
Common questions about transplant complication ICD-10 codes
What is the ICD-10 code for transplant complication?
- T86.90 — Unspecified complication of unspecified transplanted organ and tissue. More specific codes apply when the documentation supports them: T86.839, T86.831, T86.832, T86.830 and others below.
What is the ICD-10 code for bone transplant complication?
- T86.839 — Unspecified complication of bone graft.
What is the ICD-10 code for bone marrow transplant complication?
- T86.00 — Unspecified complication of bone marrow transplant.
What is the ICD-10 code for cornea transplant complication?
- T86.849 — Unspecified complication of corneal transplant (header code; choose a more specific subcode).
What is the ICD-10 code for failure transplant complication?
- T86.92 — Unspecified transplanted organ and tissue failure.
What is the ICD-10 code for heart transplant complication?
- T86.20 — Unspecified complication of heart transplant.
What is the ICD-10 code for infection transplant complication?
- T86.93 — Unspecified transplanted organ and tissue infection.
Is T86.90 billable?
- Yes. T86.90 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can T86.90 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict T86.90 as a principal diagnosis.
Is T86.90 a CC or MCC?
- T86.90 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.