N11.0

Nonobstructive reflux-associated chronic pyelonephritis

Billable / specific

N11.0 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Pyelonephritis (chronic) associated with (vesicoureteral) reflux

Includes (from N11)

  • pyelonephritis
  • chronic infectious interstitial nephritis
  • chronic pyelitis
  • chronic pyelonephritis

Excludes1

Not coded here — never report together with this code.

  • vesicoureteral reflux NOS (N13.70)
  • pyeloureteritis cystica (N28.85) (from N11)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96) (from N11)
  • certain infectious and parasitic diseases (A00-B99) (from N11)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from N11)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from N11)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from N11)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from N11)
  • neoplasms (C00-D49) (from N11)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from N11)

Use additional code

Add a code to identify the following, if applicable.

  • code (B95-B97), to identify infectious agent. (from N11)

Also known as

  • Pyelonephritis (chronic) associated with (vesicoureteral) reflux
  • Pyelonephritis, chronic, nonobstructive, with reflux
  • Pyelonephritis, nonobstructive, with reflux
  • Reflux, vesicoureteral, with pyelonephritis

Parent code

  • N11Chronic tubulo-interstitial nephritisHeader

Related codes

  • N11.1Chronic obstructive pyelonephritisBillable
  • N11.8Other chronic tubulo-interstitial nephritisBillable
  • N11.9Chronic tubulo-interstitial nephritis, unspecifiedBillable

Browse