T86.11 — Kidney transplant rejection
T86.11 is a billable, specific ICD-10-CM code for kidney transplant rejection. It is valid for submission on a claim.
Other codes that can never be billed with T86.11
These codes carry an Excludes1 note pointing at T86.11. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T86.11 alone.
- Z98.85Transplanted organ removal status
Risk adjustment
T86.11 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
T86.11 is named in 35 Medicare coverage policies — 35 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52466Nebulizers - Policy Article
- A52466Nebulizers - Policy Article
- A52466Nebulizers - Policy Article
- A52466Nebulizers - Policy Article
How T86.11 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to T86.11.
- Rejection›transplant›kidney
- Complication›transplant›kidney›rejection
The condition this code belongs to
Every code for the condition on one page, which one applies when, and the mistake coders make with it.
Code history
T86.11 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share T86.1. If T86.11 is not quite right, the correct code is usually one of these.
Questions about T86.11
- Is T86.11 a billable ICD-10-CM code?
- Yes. T86.11 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T86.11 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Complications of surgical and medical care, not elsewhere classified (T80-T88).