Unsp nephritic syndrome w diffuse membranous glomrlneph

This code signifies a form of nephritic syndrome where the specific cause is not documented, but the underlying kidney pathology is identified as diffuse membranous glomerulonephritis. This condition involves inflammation of the kidney's filtering units (glomeruli) with characteristic thickening of the glomerular basement membrane due to immune complex deposition. It typically presents with proteinuria, hematuria, hypertension, and renal insufficiency.

Use this code when documentation confirms a diagnosis of nephritic syndrome and specifies diffuse membranous glomerulonephritis as the histological finding, but the etiology of the nephritic syndrome itself (e.g., post-infectious, lupus nephritis) remains undetermined. This code is appropriate when a kidney biopsy report confirms diffuse membranous glomerulonephritis in a patient presenting with symptoms of nephritic syndrome, and no further specificity regarding the nephritic syndrome's cause is provided.

• Ensure documentation explicitly states "diffuse membranous glomerulonephritis" and "nephritic syndrome" without further specification of the nephritic syndrome's cause.
• Avoid using this code if the underlying cause of the nephritic syndrome is known and documented (e.g., lupus nephritis, post-streptococcal glomerulonephritis), as more specific codes exist.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, followed by any associated symptoms or complications.