ICD-10-CM Tabular Index · Chapter 19 · FY 2026 T86

Complications of transplanted organs and tissue (T86) ICD-10-CM

The T86 code range covers complications of transplanted organs and tissue with 97 ICD-10-CM diagnosis codes. 77 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
97
Diagnosis Codes
77
Billable Codes
T86
Code Range
T80–T88
Parent Section

Use Additional Code

The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

ICD-10-CM

Codes in the T86 Range 97 codes · 77 billable

97 of 97 shown
  • T86 Complications of transplanted organs and tissueNon-billable
  • T86.0 Complications of bone marrow transplantNon-billable
  • T86.00 Unspecified complication of bone marrow transplant
  • T86.01 Bone marrow transplant rejection
  • T86.02 Bone marrow transplant failure
  • T86.03 Bone marrow transplant infection
  • T86.09 Other complications of bone marrow transplant
  • T86.1 Complications of kidney transplantNon-billable
  • T86.10 Unspecified complication of kidney transplant
  • T86.11 Kidney transplant rejection
  • T86.12 Kidney transplant failure
  • T86.13 Kidney transplant infection
  • T86.19 Other complication of kidney transplant
  • T86.2 Complications of heart transplantNon-billable
  • T86.20 Unspecified complication of heart transplant
  • T86.21 Heart transplant rejection
  • T86.22 Heart transplant failure
  • T86.23 Heart transplant infection
  • T86.29 Other complications of heart transplantNon-billable
  • T86.290 Cardiac allograft vasculopathy
  • T86.298 Other complications of heart transplant
  • T86.3 Complications of heart-lung transplantNon-billable
  • T86.30 Unspecified complication of heart-lung transplant
  • T86.31 Heart-lung transplant rejection
  • T86.32 Heart-lung transplant failure
  • T86.33 Heart-lung transplant infection
  • T86.39 Other complications of heart-lung transplant
  • T86.4 Complications of liver transplantNon-billable
  • T86.40 Unspecified complication of liver transplant
  • T86.41 Liver transplant rejection
  • T86.42 Liver transplant failure
  • T86.43 Liver transplant infection
  • T86.49 Other complications of liver transplant
  • T86.5 Complications of stem cell transplant
  • T86.8 Complications of other transplanted organs and tissuesNon-billable
  • T86.81 Complications of lung transplantNon-billable
  • T86.810 Lung transplant rejection
  • T86.811 Lung transplant failure
  • T86.812 Lung transplant infection
  • T86.818 Other complications of lung transplant
  • T86.819 Unspecified complication of lung transplant
  • T86.82 Complications of skin graft (allograft) (autograft)Non-billable
  • T86.820 Skin graft (allograft) rejection
  • T86.821 Skin graft (allograft) (autograft) failure
  • T86.822 Skin graft (allograft) (autograft) infection
  • T86.828 Other complications of skin graft (allograft) (autograft)
  • T86.829 Unspecified complication of skin graft (allograft) (autograft)
  • T86.83 Complications of bone graftNon-billable
  • T86.830 Bone graft rejection
  • T86.831 Bone graft failure
  • T86.832 Bone graft infection
  • T86.838 Other complications of bone graft
  • T86.839 Unspecified complication of bone graft
  • T86.84 Complications of corneal transplantNon-billable
  • T86.840 Corneal transplant rejectionNon-billable
  • T86.8401 Corneal transplant rejection, right eye
  • T86.8402 Corneal transplant rejection, left eye
  • T86.8403 Corneal transplant rejection, bilateral
  • T86.8409 Corneal transplant rejection, unspecified eye
  • T86.841 Corneal transplant failureNon-billable
  • T86.8411 Corneal transplant failure, right eye
  • T86.8412 Corneal transplant failure, left eye
  • T86.8413 Corneal transplant failure, bilateral
  • T86.8419 Corneal transplant failure, unspecified eye
  • T86.842 Corneal transplant infectionNon-billable
  • T86.8421 Corneal transplant infection, right eye
  • T86.8422 Corneal transplant infection, left eye
  • T86.8423 Corneal transplant infection, bilateral
  • T86.8429 Corneal transplant infection, unspecified eye
  • T86.848 Other complications of corneal transplantNon-billable
  • T86.8481 Other complications of corneal transplant, right eye
  • T86.8482 Other complications of corneal transplant, left eye
  • T86.8483 Other complications of corneal transplant, bilateral
  • T86.8489 Other complications of corneal transplant, unspecified eye
  • T86.849 Unspecified complication of corneal transplantNon-billable
  • T86.8491 Unspecified complication of corneal transplant, right eye
  • T86.8492 Unspecified complication of corneal transplant, left eye
  • T86.8493 Unspecified complication of corneal transplant, bilateral
  • T86.8499 Unspecified complication of corneal transplant, unspecified eye
  • T86.85 Complication of intestine transplantNon-billable
  • T86.850 Intestine transplant rejection
  • T86.851 Intestine transplant failure
  • T86.852 Intestine transplant infection
  • T86.858 Other complications of intestine transplant
  • T86.859 Unspecified complication of intestine transplant
  • T86.89 Complications of other transplanted tissueNon-billable
  • T86.890 Other transplanted tissue rejection
  • T86.891 Other transplanted tissue failure
  • T86.892 Other transplanted tissue infection
  • T86.898 Other complications of other transplanted tissue
  • T86.899 Unspecified complication of other transplanted tissue
  • T86.9 Complication of unspecified transplanted organ and tissueNon-billable
  • T86.90 Unspecified complication of unspecified transplanted organ and tissue
  • T86.91 Unspecified transplanted organ and tissue rejection
  • T86.92 Unspecified transplanted organ and tissue failure
  • T86.93 Unspecified transplanted organ and tissue infection
  • T86.99 Other complications of unspecified transplanted organ and tissue

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the T86 range.

Graft Rejection

An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient.

Limbic Encephalitis

A paraneoplastic syndrome marked by degeneration of neurons in the LIMBIC SYSTEM. Clinical features include HALLUCINATIONS, loss of EPISODIC MEMORY; ANOSMIA; AGEUSIA; TEMPORAL LOBE EPILEPSY; DEMENTIA; and affective disturbance (depression). Circulating anti-neuronal antibodies (e.g., anti-Hu; anti-Yo; anti-Ri; and anti-Ma2) and small cell lung carcinomas or testicular carcinoma are frequently associated with this syndrome.

Lymphocele

Cystic mass containing lymph from diseased lymphatic channels or following surgical trauma or other injury.

Mastectomy

Surgical procedure to remove one or both breasts.

Seroma

Tumor-like sterile accumulation of serum in a tissue, organ, or cavity. It results from a tissue insult and is the product of tissue inflammation. It most commonly occurs following MASTECTOMY.

About the T86 Code Range

The T86 section of ICD-10-CM codes covers complications arising from transplanted organs and tissues. These codes track a variety of transplant-related issues such as rejection, infection, failure, and other problems specific to different types of transplants, including bone marrow, kidney, heart, lung, liver, intestine, skin grafts, corneal transplants, and more.

This code range is used to specify complications attributable to transplanted organs, helping healthcare providers and coders identify exact transplant issues. For example, the T86.01 code addresses bone marrow transplant rejection, often referred to as "accelerated rejection" or "acute rejection" of bone marrow transplant. Similarly, T86.11 designates kidney transplant rejection, encompassing terms such as "renal transplant rejection" and different rejection severity grades. Infection-related complications are also captured, like T86.13 for kidney transplant infection and T86.23 for heart transplant infection. Additionally, this section includes unspecified and other complication codes to cover less common or unspecified problems, ensuring precise documentation. Using the ICD-10 code for complications of transplanted organs helps in detailed clinical characterization and accurate coding of diverse transplant-related disorders.

Questions About This Page

How many billable codes are in the T86 range?

Of the 97 codes in this range, 77 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the T86 range classify?

The range classifies complications of transplanted organs and tissue. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.