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Effective October 1, 2005, chronic renal insufficiency is indexed to code 585.9, Chronic kidney disease, unspecified, while acute renal insufficiency continues to be indexed to code 593.9, Unspecified disorder of kidney and ureter. Prior to this change both acute and chronic renal insufficiencies were indexed to code 593.9.
Following finalization of the addenda, it was determined that a specific index entry will be added next year for unspecified renal insufficiency. Until the new index entry is created, assign code 593.9, Unspecified disorder of kidney and ureter for unspecified renal insufficiency.
593 Other disorders of kidney and ureter 593.9 Unspecified disorder of kidney and ureter Add Acute renal disease Revise Acute renal insufficiency
(acute) (chronic)Revise Renal disease (chronic)NOS Add Excludes: chronic renal insufficiency (585.9) renal disease: Delete acute (580.0-580.9)Delete chronic (582.0-582.9)
VOLUMES 1 AND 2 NEW/REVISED CODES: Renal Insufficiency. AHA Coding Clinic for ICD-9-CM. 2005; Volume 22 Issue 4