N17.1 – Acute kidney failure with acute cortical necrosis

ICD-10-CM 2027 diagnosis code · Acute kidney failure and chronic kidney disease

Billable code

ICD-10-CM code N17.1

Code: N17.1 (claims format: N171)
Description: Acute kidney failure with acute cortical necrosis
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 14. Diseases of the genitourinary system (N00-N99)
Block: N17-N19 Acute kidney failure and chronic kidney disease
Parent codes: N17

Notes for N17.1

Applicable to:

Acute cortical necrosis
Cortical necrosis NOS
Renal cortical necrosis

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

N17 – Acute kidney failure

Excludes1 (not coded here):

posttraumatic renal failure (T79.5)

Code also:

associated underlying condition

Block N17-N19

Excludes2 (not included here):

congenital renal failure (P96.0)
drug- and heavy-metal-induced tubulo-interstitial and tubular conditions (N14.-)
extrarenal uremia (R39.2)
hemolytic-uremic syndrome (D59.3-)
hepatorenal syndrome (K76.7)
postpartum hepatorenal syndrome (O90.41)
posttraumatic renal failure (T79.5)
prerenal uremia (R39.2)
renal failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.4)
renal failure following labor and delivery (O90.41)
renal failure postprocedural (N99.0)

Index terms for N17.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in N17

N17.0 – Acute kidney failure with tubular necrosisBillable
N17.2 – Acute kidney failure with medullary necrosisBillable
N17.8 – Other acute kidney failureBillable
N17.9 – Acute kidney failure, unspecifiedBillable

Frequently asked questions

What is ICD-10 code N17.1?

N17.1 is the ICD-10-CM code for acute kidney failure with acute cortical necrosis, in the block N17-N19 (Acute kidney failure and chronic kidney disease).

Is N17.1 a billable code?

Yes. N17.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does N17.1 belong to?

It belongs to category N17 – Acute kidney failure.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.