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ICD-10-CM Codes
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N00-N99
Diseases of the genitourinary system
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N10-N16
Renal tubulo-interstitial diseases
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N11-
Chronic tubulo-interstitial nephritis
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2021 ICD-10-CM Diagnosis Code N11
2021 ICD-10-CM Diagnosis Code N11
Chronic tubulo-interstitial nephritis
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- N11 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2021 edition of ICD-10-CM N11 became effective on October 1, 2020.
- This is the American ICD-10-CM version of N11 - other international versions of ICD-10 N11 may differ.
Use AdditionalUse Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
- code (B95-B97
ICD-10-CM Range B95-B97
Bacterial and viral infectious agentsNote- These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
- B95 Streptococcus, Staphylococcus, and Enter...
- B96 Other bacterial agents as the cause of d...
- B97 Viral agents as the cause of diseases cl...
IncludesIncludes Help
"Includes" further defines, or give examples of, the content of the code or category.
- chronic infectious interstitial nephritis
- chronic pyelitis
- chronic pyelonephritis
The following code(s) above
N11 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
N11:
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
Code annotations containing back-references to N11:
ICD-10-CM Codes Adjacent To N11
N07.3 Hereditary nephropathy, not elsewhere classified with diffuse mesangial proliferative glomerulonephritis
N07.4 Hereditary nephropathy, not elsewhere classified with diffuse endocapillary proliferative glomerulonephritis
N07.5 Hereditary nephropathy, not elsewhere classified with diffuse mesangiocapillary glomerulonephritis
N07.6 Hereditary nephropathy, not elsewhere classified with dense deposit disease
N07.7 Hereditary nephropathy, not elsewhere classified with diffuse crescentic glomerulonephritis
N07.8 Hereditary nephropathy, not elsewhere classified with other morphologic lesions
N07.9 Hereditary nephropathy, not elsewhere classified with unspecified morphologic lesions
N07.A Hereditary nephropathy, not elsewhere classified with C3 glomerulonephritis
N08 Glomerular disorders in diseases classified elsewhere
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
N12 Tubulo-interstitial nephritis, not specified as acute or chronic
N13 Obstructive and reflux uropathy
N13.0 Hydronephrosis with ureteropelvic junction obstruction
N13.1 Hydronephrosis with ureteral stricture, not elsewhere classified
N13.2 Hydronephrosis with renal and ureteral calculous obstruction
N13.3 Other and unspecified hydronephrosis
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
