Table 1.

Medical eligibility criteria for liver-kidney allocation to adult liver transplant candidates^a[17]

SLK allocation policy
If the candidate's transplant nephrologist confirms a diagnosis of:	Then the transplant program must document in the candidate's medical record:
Chronic kidney disease (CKD) with GFR ≤60 ml/min for >90 days	At least one of the following: 1. ESRD on chronic dialysis 2. GFR is ≤30 ml/min at the time of registration or on a date after registration on the kidney waiting list.
Sustained acute kidney injury (AKI)	At least one of the following: 1. Dialysis for 6 consecutive weeks, at least once weekly. 2. GFR ≤25 ml/min for 6 consecutive weeks, at least once weekly. 3. Combination of #1 and #2 for 6 consecutive weeks.
Metabolic disease	An additional diagnosis of at least one of the following: 1. Hyperoxaluria 2. Atypical hemolytic uremic syndrome (HUS) from mutations in factor H or factor I 3. Familial nonneuropathic systemic amyloid 4. Methylmalonic aciduria.
Liver Transplant Alone (LTA) and Safety Netb
The candidate is registered on the kidney waiting list prior to the first anniversary of the candidate's most recent liver transplant date	At least one of the following in the period between 60 and 365 days post LTA: 1. Dialysis 2. GFR ≤ 20 ml/min

^aGFR can be measured or estimated. Consider the MDRD-6 equation for eGFR ≤30 ml/min and CKD-EPI Cystatin C for eGFR >30 ml/min.

^bSafety net gives priority to LTA recipients on the kidney waiting list. When the transplant program reports that the candidate meets the criteria for the safety net, the candidate will remain at this classification for 30 days from the date of the qualifying test or treatment. If the transplant program reports additional qualifying tests or treatments, then the candidate will remain at this classification for 30 days from the most recent date of the test or treatment. If the transplant program reports that the candidate meets the criteria for 90 consecutive days, the candidate will remain at this classification until the candidate is removed from the kidney waiting list.