2021 ICD-10-CM Code N10
Acute pyelonephritis
Valid for Submission
N10 is a billable diagnosis code used to specify a medical diagnosis of acute pyelonephritis. The code N10 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 N10 might also be used to specify conditions or terms like acute bacterial tubulointerstitial nephritis, acute fungal tubulointerstitial nephritis, acute infectious tubulointerstitial nephritis, acute nephritis due to another disorder, acute on chronic tubulointerstitial nephritis , acute pyelitis, etc.
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 N10:
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.
- Acute infectious interstitial nephritis
- Acute pyelitis
- Acute tubulo-interstitial nephritis
- Hemoglobin nephrosis
- Myoglobin nephrosis
Use Additional Code
Use Additional CodeThe “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code N10 are found in the index:
- - Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) - N05.9
- - tubulo-interstitial (in) - N12
- - acute (infectious) - N10
- - tubulo-interstitial (in) - N12
- - Nephrosis, nephrotic (Epstein's) (syndrome) (congenital) - N04.9
- - hemoglobin - N10
- - myoglobin - N10
- - Pyelitis (congenital) (uremic) - See Also: Pyelonephritis;
- - acute - N10
- - Pyelonephritis - See Also: Nephritis, tubulo-interstitial;
- - acute - N10
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Acute bacterial tubulointerstitial nephritis
- Acute fungal tubulointerstitial nephritis
- Acute infectious tubulointerstitial nephritis
- Acute nephritis due to another disorder
- Acute on chronic tubulointerstitial nephritis
- Acute pyelitis
- Acute pyelitis with renal medullary necrosis
- Acute pyelitis without renal medullary necrosis
- Acute pyelonephritis
- Acute pyelonephritis with medullary necrosis
- Acute pyelonephritis without medullary necrosis
- Acute tubulointerstitial nephritis
- Acute tubulointerstitial nephritis associated with systemic infection
- Acute viral tubulointerstitial nephritis
- Bacterial nephritis
- Emphysematous pyelitis
- Emphysematous pyelonephritis
- Focal pyelonephritis
- Fungal infection of kidney
- Idiopathic acute tubulointerstitial nephritis
- Papillary necrosis
- Pyelitis
- Pyelonephritis associated with another disorder
- Renal ocular syndrome
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code N10 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 N10 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code N10 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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- 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)