T86.11

Billable

Kidney transplant rejection

HCC Category Mapping

RxHCCHCC 260 — Kidney Transplant Complications

0.000

What This Code Means

The recipient's immune system attacks and rejects a transplanted kidney, causing it to stop functioning properly.

Coding Tips

•Document the timeframe of rejection (hyperacute, acute, or chronic) if available in the medical record
•Distinguish from kidney transplant failure (T86.12) which may occur without immune rejection

Clinical Significance

Kidney transplant rejection represents a critical complication threatening graft survival and patient health, requiring immediate intervention with immunosuppressive therapy adjustments or anti-rejection treatments. Early recognition and aggressive treatment are essential to preserve kidney function and prevent return to dialysis dependency.

Documentation Requirements

✓History of kidney transplant with transplant date
✓Clinical evidence of rejection (rising creatinine, decreased urine output)
✓Kidney biopsy results confirming rejection when available
✓Type of rejection (acute vs chronic, cellular vs antibody-mediated)
✓Laboratory values including creatinine trends and immunosuppressive levels
✓Anti-rejection treatments administered
✓Response to treatment and graft function status
✓Transplant team evaluation and management decisions

Commonly Confused Codes

T86.10 — Unspecified kidney transplant complication (when rejection is documented)T86.12 — Kidney transplant failure (end result vs active rejection process)N18.6 — End stage renal disease (when transplant has completely failed)Z94.0 — Kidney transplant status (for stable patients without complications)T86.13 — Kidney transplant infection (different pathophysiology)