What is the ICD-10-CM code for acute renal failure?

The ICD-10-CM code for acute renal failure is represented as N17.9. This code specifically refers to acute kidney injury or acute renal failure without further specification. The "N" category of ICD-10 codes is designated for diseases of the genitourinary system, which includes conditions affecting the kidneys.

Acute renal failure, characterized by a sudden decrease in kidney function, can result from a variety of causes such as injury, dehydration, or certain medications. The context of the code N17.9 is significant, as it captures the critical aspect of acute renal failure without additional qualifiers, thus making it applicable to a broad range of clinical scenarios where immediate renal impairment is observed.

The other codes listed pertain to different medical conditions: one is related to aneurysms, another to ischemic heart disease, and the last to lung cancer, none of which connect with renal failure. This reinforces the appropriateness of N17.9 as the correct code for acute renal failure.