AHA Coding Clinic® for ICD-9 - 1990 Fourth Quarter
Cystic Kidney Disease
Effective October 1, 1990, category 753.1, Cystic kidney disease in Chapter 14, Congenital Anomalies, has been expanded to include 5th digits. The index has been modified to reflect these changes. There are major differences in the clinical characteristics, pathophysiology, and prognosis of the various types of cystic kidney disease. For example, medullary sponge kidney is relatively frequent (1/200 in unselected IV pyelograms) and has good prognosis, but medullary cystic kidney can lead to chronic renal failure. The expansion of category 753.1, Cystic kidney disease, will provide a means for more accurate and meaningful data. Acquired renal cysts...
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Article Overview
This article explains an ICD-9-CM update affecting cystic kidney disease classification in the congenital anomalies chapter and discusses the distinction between congenital and acquired renal cysts. It is intended for coding professionals, CDI staff, and anyone needing to understand how the revised category was organized and why the update matters for accurate record classification.
Why This Topic Matters
The article helps readers understand a coding revision that affects how cystic kidney conditions are grouped and reported, which is important for accurate data capture and consistent abstracting of renal cyst diagnoses.
Article Sections
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ICD-9-CM category update
Summarizes the revision to the congenital anomaly category and notes the broader purpose of the change for data classification.
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Clinical and coding distinction for renal cysts
Describes the broad differences among cystic kidney conditions and addresses the classification distinction between congenital and acquired renal cysts.
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Revised category listing
Presents the updated category structure and the included subcategories referenced in the article.
What You Will Learn
- How an ICD-9-CM congenital anomaly category was revised
- Why cystic kidney conditions may require different classification approaches
- How congenital and acquired renal cysts are treated at a high level in the article
- What updated subcategory structure is referenced for cystic kidney disease
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation improvement staff
- Health information management professionals
Codes Discussed
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