ICD-10-CM Code N12
Tubulo-interstitial nephritis, not specified as acute or chronic
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.N12 is a billable ICD code used to specify a diagnosis of tubulo-interstitial nephritis, not specified as acute or chronic. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code N12 is used to code Interstitial nephritis
Interstitial nephritis (or tubulo-interstitial nephritis) is a form of nephritis affecting the interstitium of the kidneys surrounding the tubules. This disease can be either acute, meaning it occurs suddenly, or chronic, meaning it is ongoing and eventually ends in kidney failure.
| Specialty: | Urology |
| MeSH Codes: | D009395, D009395, D009395, D009395, |
| ICD 9 Codes: | 580.89, 581.89, 582.89, 583.89, |
Coding Notes for N12 Info for medical coders on how to properly use this ICD-10 code
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Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive. - Interstitial nephritis NOS
- Pyelitis NOS
- Pyelonephritis NOS
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Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here." - Calculous pyelonephritis - instead, use code N20.9
MS-DRG Mapping
- DRG Group #689-690 - Kidney and urinary tract infections with MCC.
- DRG Group #689-690 - Kidney and urinary tract infections without MCC.
- DRG Group #793 - Full term neonate with major problems.
Related Concepts SNOMET-CT
- Familial interstitial nephritis (disorder)
ICD-10-CM Alphabetical Index References for 'N12 - Tubulo-interstitial nephritis, not specified as acute or chronic'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code N12. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code N12 and a single ICD9 code, 590.80 is an approximate match for comparison and conversion purposes.