Kodex

Code

N11.1

Chronic obstructive pyelonephritis

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Hierarchy

N00-N99 Diseases of the genitourinary system (N00-N99)
- N10-N16 Renal tubulo-interstitial diseases (N10-N16)
  - N11 Chronic tubulo-interstitial nephritis
    - N11.0 Nonobstructive reflux-associated chronic pyelonephritis
    - N11.1 Chronic obstructive pyelonephritis
    - N11.8 Other chronic tubulo-interstitial nephritis
    - N11.9 Chronic tubulo-interstitial nephritis, unspecified

Inclusion Terms

N11.1

Pyelonephritis (chronic) associated with anomaly of pelviureteric junction
Pyelonephritis (chronic) associated with anomaly of pyeloureteric junction
Pyelonephritis (chronic) associated with crossing of vessel
Pyelonephritis (chronic) associated with kinking of ureter
Pyelonephritis (chronic) associated with obstruction of ureter
Pyelonephritis (chronic) associated with stricture of pelviureteric junction
Pyelonephritis (chronic) associated with stricture of ureter

Use Additional

code (B95-B97), to identify infectious agent.
- B95-B97 Bacterial and viral infectious agents (B95-B97)

Includes

chronic infectious interstitial nephritis
chronic pyelitis
chronic pyelonephritis

pyelonephritis

Excludes 1

N11.1

calculous pyelonephritis (N20.9)
- N20.9 Urinary calculus, unspecified
obstructive uropathy (N13.-)
- N13 Obstructive and reflux uropathy

N28.85 Pyeloureteritis cystica

Excludes 2

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