ICD-10 diagnosis code

N27 Small kidney of unknown cause

N27 is the ICD-10 code for Small kidney of unknown cause. It is a three-character category divided into 3 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block N25–N29 (Other disorders of kidney and ureter) in Chapter XIV, Diseases of the genitourinary system.

Code type: Category (3 characters)
Chapter: XIV · N00–N99
Classification: WHO ICD-10, 2019 version

Subcodes of N27

N27 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

N27Liten njure av okänd orsak

DenmarkICD-10-DK

DN27Små nyrer af ukendt årsag

FinlandICD-10-FI

N27Tuntemattomasta syystä aiheutunut munuaisen pienuus

GermanyICD-10-GM

N27Kleine Niere unbekannter Ursache

FranceICD-10-FR

N27Petit rein de cause inconnue

NetherlandsICD-10-NL

N27kleine nier door onbekende oorzaak

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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