N17.2

Acute kidney failure with medullary necrosis

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC ESRD V24

HCC135

Acute Renal Failure

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · N17.2
Synonyms

Medullary [papillary] necrosis NOS Acute medullary [papillary] necrosis Renal medullary [papillary] necrosis

Inherited from N17Acute kidney failure
Excludes 1

posttraumatic renal failure (T79.5)

Code also

associated underlying condition

Inherited from N17-N19Acute kidney failure and chronic kidney disease
Excludes 2

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)

Inherited from chapter 14Diseases of the genitourinary system
Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Official Guidelines for N17.2

FY 2026 ›