2021 ICD-10-CM Code N16
Renal tubulo-interstitial disorders in diseases classified elsewhere
Valid for Submission
N16 is a billable diagnosis code used to specify a medical diagnosis of renal tubulo-interstitial disorders in diseases classified elsewhere. The code N16 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code N16 might also be used to specify conditions or terms like pyelitis, pyelitis associated with another disorder, pyelonephritis associated with another disorder, renal tubulo-interstitial disorders in metabolic diseases, renal tubulo-interstitial disorders in neoplastic diseases , renal tubulo-interstitial disorders in systemic connective tissue disorders, etc.
ICD-10: | N16 |
Short Description: | Renal tubulo-interstitial disord in diseases classd elswhr |
Long Description: | Renal tubulo-interstitial disorders in diseases classified elsewhere |
Code Classification
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code N16:
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Pyelonephritis
- Tubulo-interstitial nephritis
Code First
Code FirstCertain 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.
- underlying disease, such as:
- brucellosis A23.0 A23.9
- cryoglobulinemia D89.1
- glycogen storage disease E74.0
- leukemia C91 C95
- lymphoma C81.0 C85.9 C96.0 C96.9
- multiple myeloma C90.0
- sepsis A40.0 A41.9
- Wilson's disease E83.0
Type 1 Excludes
Type 1 ExcludesA type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- diphtheritic pyelonephritis and tubulo-interstitial nephritis A36.84
- pyelonephritis and tubulo-interstitial nephritis in candidiasis B37.49
- pyelonephritis and tubulo-interstitial nephritis in cystinosis E72.04
- pyelonephritis and tubulo-interstitial nephritis in salmonella infection A02.25
- pyelonephritis and tubulo-interstitial nephritis in sarcoidosis D86.84
- pyelonephritis and tubulo-interstitial nephritis in sicca syndrome Sjogren's M35.04
- pyelonephritis and tubulo-interstitial nephritis in systemic lupus erythematosus M32.15
- pyelonephritis and tubulo-interstitial nephritis in toxoplasmosis B58.83
- renal tubular degeneration in diabetes E08 E13
- syphilitic pyelonephritis and tubulo-interstitial nephritis A52.75
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
- Manifestation diagnoses - Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Pyelitis
- Pyelitis associated with another disorder
- Pyelonephritis associated with another disorder
- Renal tubulo-interstitial disorders in metabolic diseases
- Renal tubulo-interstitial disorders in neoplastic diseases
- Renal tubulo-interstitial disorders in systemic connective tissue disorders
- Renal tubulo-interstitial disorders in transplant rejection
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code N16 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2021.
Convert N16 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code N16 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Kidney Diseases
Also called: Renal disease
You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters. It goes to your bladder, which stores the urine until you go to the bathroom.
Most kidney diseases attack the nephrons. This damage may leave kidneys unable to remove wastes. Causes can include genetic problems, injuries, or medicines. You have a higher risk of kidney disease if you have diabetes, high blood pressure, or a close family member with kidney disease. Chronic kidney disease damages the nephrons slowly over several years. Other kidney problems include
- Cancer
- Cysts
- Stones
- Infections
Your doctor can do blood and urine tests to check if you have kidney disease. If your kidneys fail, you will need dialysis or a kidney transplant.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
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- Goodpasture syndrome (Medical Encyclopedia)
- IgA nephropathy (Medical Encyclopedia)
- Injury - kidney and ureter (Medical Encyclopedia)
- Interstitial nephritis (Medical Encyclopedia)
- Kidney removal (Medical Encyclopedia)
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- Nephrotic syndrome (Medical Encyclopedia)
- Obstructive uropathy (Medical Encyclopedia)
- Perirenal abscess (Medical Encyclopedia)
- Proximal renal tubular acidosis (Medical Encyclopedia)
- Reflux nephropathy (Medical Encyclopedia)
- Renal papillary necrosis (Medical Encyclopedia)
- Renal vein thrombosis (Medical Encyclopedia)
- Unilateral hydronephrosis (Medical Encyclopedia)
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Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)