AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2019 Issue 3; Ask the Editor
Acute Pyelonephritis with Renal Calculus
A patient presents due to abdominal pain. At discharge, the provider documents “Acute pyelonephritis and nephrolithiasis.” When referencing pyelonephritis in the Alphabetic Index there are subentries for “acute” and “with calculus” at the same indentation level. Should only the combination code describing calculus with pyelonephritis be assigned, or are separate codes assigned? What is the appropriate code assignment for acute pyelonephritis with calculus? ...
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Article Overview
This premium article addresses ICD-10-CM coding for a discharge diagnosis involving acute pyelonephritis and kidney stones. It is aimed at coders, auditors, CDI staff, and other revenue-cycle professionals who need to understand how the documentation is interpreted in the Alphabetic Index and how the related diagnosis coding is presented in this scenario. The article focuses on the indexing context, the relationship between pyelonephritis and calculus-related entries, and the resulting code assignment discussion.
Why This Topic Matters
Accurate diagnosis coding affects claim accuracy, documentation alignment, and downstream reporting. This article helps readers evaluate a common coding scenario involving urinary tract infection/inflammation and renal calculus documentation.
What You Will Learn
- How the article frames ICD-10-CM indexing for acute pyelonephritis with nephrolithiasis
- How the documentation context affects the coding discussion
- What type of diagnosis-coding assignment is presented for this scenario
- How the Alphabetic Index is used in this case
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation integrity specialists
- Revenue cycle professionals
- Healthcare billing staff
Codes Discussed
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