Nephritic syndrome, chronic
| ICD10 Diagnosis | |
| Dx: | Nephritic syndrome, chronic |
| ICD10 code: | N03 |
| Pre-ICD10 counterpart: | none assigned |
| Charlson/ALERT Scale: | Renal disease |
| APACHE Como Component: | none |
| APACHE Acute Component: | 2019-0: Renal/Metabolic NOS, 2019-0: Metabolic/Renal NOS |
| Start Date: | |
| Stop Date: | |
| External ICD10 Documentation | |
This diagnosis is a part of ICD10 collection.
Additional Info
- Nephritic syndrome, chronic also includes Iga Nephropathy also known as Berger's Disease
- Chronic GN is slowly progressive
- In ICD10 there are no codes specific for glomerulonephritis (GN) -- instead the various forms of that entity are included in the various codes for "Nephritic sydrome"
- Nephritic syndrome represents a class/category of renal diseases that are due to non-infectious inflammation of the glomerulus
- Though non-infectious, a classic cause of GN is immune-mediated and elicited by PRIOR infection by a variety of organisms, though Streptococci is the classic (so-called Post-strep GN) if using this code combine with Other specified infectious agents as the cause of diseases classified by other ICD10 code
- Although often primary, i.e. the etiology is auto-immune, there are numerous other conditions that can cause GNs (e.g. post-infectious which is an immune-mediated problem and not due to the organism itself; in association with other immune disorders such as Lupus and vasculitis; immune consequences of drug use such as iv heroin, others). When the etiology is NOT primary, combine the cause with the appropriate Nephritic syndrome code.
- Regarding the various codes for nephritic syndrome (Nephritic syndrome, acute, Nephritic syndrome, rapidly progressive, Nephritic syndrome, chronic, Nephritic syndrome, NOS)
- They include
- glomerulonephritis
- nephritis
- other inflammatory glomerular diseases
- Don't get confused, another way to classify glomerular diseases is by what they look like under the microscope (e.g. minimal change, membranous, crecentic, etc) -- but in ICD10 these are all included within all the codes for nephritic syndrome.
- They include
- The difference between the various Nephritic syndrome codes is clinical onset and persistence:
- code Nephritic syndrome, rapidly progressive if and only if the primary or renal team label it as "rapidly progressive", as in "Rapidly progressive GN"
- if acute in presentation/onset, but they don't label it as "rapidly progressive", then use Nephritic syndrome, acute
- if stated by the teams to be chronic, then use Nephritic syndrome, chronic
- if nothing is said about it's onset or persistence, then use the wastebasket of Nephritic syndrome, NOS
- Important to distinguish the various Nephritic syndrome codes from Nephrotic syndrome
- a classic cause of GN (especially Nephritic syndrome, rapidly progressive is as an immune after-effect of Strep infection, so-called Post-strep GN). To code this we will add a new code B98, to be called Other specified infectious agents as the cause of diseases classified by other ICD10 code -- this new code, with the appropriate Streptoccus code, is then combined with the appropriate Nephritic syndrome code to get Post-strep GN
Alternate ICD10s to consider coding instead or in addition
| Nephritic syndrome codes: |
- Kidney, tubulo-interstitial nephritis/disease
- Hemoglobinuria
- Kidney infection, acute (pyelonephritis)