T86.11 Kidney transplant rejection

The ICD-10-CM code for Kidney transplant rejection is T86.11 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

19: Injury, poisoning and certain other consequences of external causes (S00-T88)

Section

T80-T88: Complications of surgical and medical care, not elsewhere classified (T80-T88)

Category T86

97 codes (77 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to T86.11:

• Rejection › transplant › kidney
• Complication (s) (from) (of) › transplant › kidney › rejection

U.S. Hospital Utilization

• An estimated 14,465 U.S. inpatient stays in 2023 included T86.11 among the documented diagnoses.
• 6,360 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Kidney transplant complications: when to assign T86.1- vs CKD

(b) Kidney transplant complications Patients who have undergone kidney transplant may still have some form of chronic kidney disease (CKD) because the kidney transplant may not fully restore kidney function. Code T86.1- should be assigned for documented complications of a kidney transplant, such as transplant failure or rejection or other transplant complication. Code T86.1- should not be assigned for post kidney transplant patients who have chronic kidney (CKD) unless a transplant complication such as transplant failure or rejection is documented. If the documentation is unclear as to whether the patient has a complication of the transplant, query the provider. Conditions that affect the function of the transplanted kidney, other than CKD, should be assigned a code from subcategory

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference T86.11 with the canonical source and edition:

T86.11 — Kidney transplant rejection. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T86.11

Canonical URL: https://icd10codingpro.com/codes/T86.11