Chronic tubulo-interstitial nephritis
Non-billable header
N11 is a non-billable header code. Use one of the more specific codes below.
Inclusion terms
Includes
- pyelonephritis
- chronic infectious interstitial nephritis
- chronic pyelitis
- chronic pyelonephritis
Excludes1
Not coded here — never report together with this code.
- pyeloureteritis cystica (N28.85)
Excludes2
Not included here — may be reported together when both conditions exist.
- 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)
Use additional code
Add a code to identify the following, if applicable.
More specific codes N11
Related codes
- N10Acute pyelonephritisBillable
- N12Tubulo-interstitial nephritis, not specified as acute or chronicBillable
- N13Obstructive and reflux uropathyHeader
- N14Drug- and heavy-metal-induced tubulo-interstitial and tubular conditionsHeader
- N15Other renal tubulo-interstitial diseasesHeader
- N16Renal tubulo-interstitial disorders in diseases classified elsewhereBillable