Acute kidney injury

Sudden illness and injury. Also called: AKI, Acute kidney failure.

How common is Acute kidney injury in the US?

Rate of pediatric hospitalizations complicated by acute kidney injury (AKI), per 10,000 discharges: 168.7 (Pediatric hospital discharges, United States, HCUP Kids' Inpatient Database (KID), 2022; United States (HCUP Kids' Inpatient Database, nationally representative sample of pediatric hospitalizations), 1997-2022 (rate shown is for 2022)). Source: JAMA network open, 2026. Label: REPORTED.

• 168.7 Rate of pediatric hospitalizations complicated by acute kidney injury (AKI), per 10,000 discharges. Out of: Pediatric hospital discharges, United States, HCUP Kids' Inpatient Database (KID), 2022. Where: United States (HCUP Kids' Inpatient Database, nationally representative sample of pediatric hospitalizations). When: 1997-2022 (rate shown is for 2022). Pediatric hospitalizations only (excludes adults); counts AKI complicating a hospitalization for any reason, not all AKI cases in the population. Label: REPORTED.

  AKI hospitalizations per 10 000 discharges increased from 15.7 (95% CI, 14.3-17.1) in 1997 to 168.7 (95% CI, 156.9-181.0) in 2022.

  Source: US Pediatric Hospitalizations Complicated by Acute Kidney Injury and Dialysis From 1997 to 2022. JAMA network open, 2026. PubMed 42771340. DOI 10.1001/jamanetworkopen.2026.35547.

Each figure measures something different. Do not compare them with each other or with other conditions.

Medical codes

• ICD-10-CM FY2026: N17.9 Acute kidney failure, unspecified (narrower). Other codes in this category also apply.

Research activity

As of 2026-09-24: 1,884 registered studies on ClinicalTrials.gov (search Acute Kidney Injury) and 26,615 PubMed records, 2021 to 2025. A count of records is not how common or serious the condition is.

Population information, not medical advice. Methodology · Known limitations