N18 is the ICD-10 code for Chronic kidney disease. It is a three-character category divided into 6 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block N17–N19 (Renal failure) in Chapter XIV, Diseases of the genitourinary system.
- Code type
- Category (3 characters)
- Chapter
- XIV · N00–N99
- Classification
- WHO ICD-10, 2019 version
What N18 includes
Conditions and terms that are coded here.
- chronic renal failure
Coding notes
- Use additional code, if desired, to identify underlying disease.
- Use additional code, if desired, to identify presence of hypertension.
Subcodes of N18
N18 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DN18Kronisk nyreinsufficiens
N18Pitkäaikainen munuaisten vajaatoiminta
- N18.0Munuaissairauden loppuvaihe
- N18.8Muu pitkäaikainen munuaisten vajaatoiminta
N18Chronische Nierenkrankheit
- N18.8Sonstige chronische Nierenkrankheit
N18Maladie rénale chronique
N18chronische nierziekte
Listed through more specific codes:
- N18.6End stage renal disease
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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