Acute Kidney Injury ICD-10-CM Codes

Acute Kidney Injury ICD-10-CM Codes

Learn about the ICD-10-CM codes for acute kidney injury (AKI) through this guide.

By Bernard Ramirez on Jul 15, 2025.

Fact Checked by Gale Alagos.

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What ICD-10 codes are used for acute kidney injury (AKI)?

Acute kidney injury (AKI), commonly called acute kidney failure, refers to the abrupt loss of kidney function. Accurate ICD-10-CM codes are essential for medical billing and documentation. Below are commonly used codes for AKI:

  • N17.0 - Acute kidney failure with tubular necrosis: AKI caused by tubular necrosis, often due to ischemia or nephrotoxic agents.
  • N17.1 - Acute kidney failure with acute cortical necrosis: AKI caused by acute cortical necrosis, typically arising from severe ischemia or vascular disorders.
  • N17.2 - Acute kidney failure with medullary necrosis: AKI caused by medullary necrosis, often resulting from sickle cell disease or ischemic injury.
  • N17.8 - Other acute kidney failure: This code covers cases of AKI not classified under the previously mentioned codes.
  • N17.9 - Acute kidney failure, unspecified: Used when specific details about the cause of AKI are unavailable or documented.
  • N99.0 - Postprocedural (acute) (transient) renal failure: AKI occurring as a complication of a medical procedure.

Which AKI ICD codes are billable?

All of the aforementioned AKI ICD-10-CM codes are valid and billable.

Clinical information

  • A sudden and rapid decline in kidney function is known as acute kidney injury (AKI) or acute renal failure.
  • Dehydration, kidney infections, urinary tract obstructions, medications, and illnesses that affect the kidneys' ability to receive blood flow are common causes.
  • Reduced urine output, swelling, fatigue, confusion, and nausea are a few symptoms that may be present.
  • Blood and urine tests diagnose kidney disease and identify its underlying cause.
  • Depending on where the issue is, AKI can be divided into three stages: prerenal, intrinsic renal, and postrenal.
  • The goal of treatment is to manage complications, support kidney function, and deal with the underlying cause.
  • In extreme circumstances, temporary dialysis may be needed to support kidney function while the patient recovers.
  • AKI necessitates careful observation and prompt treatment to stop further kidney damage.
  • The cause, severity, and promptness of treatment all affect the prognosis.
  • Examples of preventive measures include managing risk factors, staying hydrated, and using medications cautiously while under a doctor's care.
  • The cause, severity, and promptness of treatment all affect the prognosis.
  • Examples of preventive measures include managing risk factors, staying hydrated, and using medications cautiously while under a doctor's care.

Synonyms include

  • Acute renal failure
  • Rapid kidney dysfunction
  • Abrupt renal impairment
  • Acute kidney damage
  • Acute renal insufficiency
  • Acute kidney injury accompanying chronic kidney disease
  • Acute kidney injury due to unspecified chronic kidney disease
  • Acute kidney injury accompanying posttraumatic renal failure
  • Acute kidney injury due to congenital renal failure

Popular search terms for AKI ICD codes

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