AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 4; New/Revised ICD-10-CM Codes
Membranous Nephropathy
Code N04.2, Nephrotic syndrome with diffuse membranous glomerulonephritis, was expanded to create the following codes for membranous nephropathy (MN) with nephrotic syndrome:• N04.20, Nephrotic syndrome with diffuse membranous glomerulonephritis, unspecified • N04.21, Primary membranous nephropathy with nephrotic syndrome • N04.22, Secondary membranous nephropathy with nephrotic syndrome • N04.29, Other nephrotic syndrome with diffuse membranous glomerulonephritis In addition, code N06.2, Isolated proteinuria with diffuse membranous glomerulonephritis, was expanded to create codes to identify MN with isolated proteinuria:• N06.20, Isolated proteinuria with diffuse membranous glomerulonephritis, unspecified • N06.21, Primary membranous nephropathy with...
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Article Overview
This article explains recent ICD-10-CM expansions related to membranous nephropathy and summarizes the condition’s general clinical background. It is relevant for coding professionals, CDI teams, nephrology practices, and others who need to understand how membranous nephropathy is represented in diagnosis coding. The discussion covers the major presentation categories, the primary versus secondary distinction, and broad disease context without replacing the full coding guidance in the premium article.
Why This Topic Matters
Membranous nephropathy is a notable kidney diagnosis that can appear in different coding scenarios, and the article highlights how related diagnosis categories were expanded. Understanding the scope helps code users recognize when this topic may affect nephrology documentation review, diagnosis capture, and coding research.
What You Will Learn
- How membranous nephropathy is discussed in relation to ICD-10-CM diagnosis coding
- The broad distinction between nephrotic syndrome and isolated proteinuria presentations
- General clinical background on membranous nephropathy and its primary and secondary forms
- Common symptoms and causes associated with the condition
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation improvement specialists
- Nephrology providers
- Health information management professionals
Codes Discussed
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