N11 is the ICD-10 code for Chronic tubulo-interstitial nephritis. It is a three-character category divided into 4 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block N10–N16 (Renal tubulo-interstitial diseases) in Chapter XIV, Diseases of the genitourinary system.
- Code type
- Category (3 characters)
- Chapter
- XIV · N00–N99
- Classification
- WHO ICD-10, 2019 version
What N11 includes
Conditions and terms that are coded here.
- chronic:
- infectious interstitial nephritis
- pyelitis
- pyelonephritis
Coding notes
- Use additional code (B95-B98), if desired, to identify infectious agent.
Subcodes of N11
N11 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DN11Kronisk tubulointerstitiel nefritis
N11Pitkäaikainen tubulointerstitiaalinen munuaistulehdus
N11Chronische tubulointerstitielle Nephritis
N11Néphrite tubulo-interstitielle chronique
N11chronische tubulo-interstitiële nefritis
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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