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interstitial nephritis

Medical Definition

Diffuse or local inflammation and edema of the interstitial tissue of the kidney, including the tubules.

Wikipedia Summary

Interstitial nephritis, also known as tubulointerstitial nephritis, is inflammation of the area of the kidney known as the renal interstitium, which consists of a collection of cells, extracellular matrix, and fluid surrounding the renal tubules. It is also known as intestinal nephritis because the clinical picture may in some cases of acute pyelonephritis include mesenteric lymphadenitis (mostly due to use of NSAIDs)...
Related Codes (4)
Code
Description
Billable
Details
N11Chronic tubulo-interstitial nephritis
Additional Codes (1)
N11.8Other chronic tubulo-interstitial nephritis
N11.9Chronic tubulo-interstitial nephritis, unspecified
N12Tubulo-interstitial nephritis, not specified as acute or chronic
Type 1 Excludes (1)

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