ICD-10 diagnosis code

K59 Other functional intestinal disorders

K59 is the ICD-10 code for Other functional intestinal disorders. It is a three-character category divided into 7 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block K55–K64 (Other diseases of intestines) in Chapter XI, Diseases of the digestive system.

Code type: Category (3 characters)
Chapter: XI · K00–K93
Classification: WHO ICD-10, 2019 version

What K59 excludes

Conditions that look similar but belong under another code.

change in bowel habit NOS R19.4
functional disorders of stomach K31.-
intestinal malabsorption K90.-
psychogenic intestinal disorders F45.3

Subcodes of K59

K59 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

K59Andra funktionsrubbningar i tarmen

DenmarkICD-10-DK

DK59Andre forstyrrelser i tarmfunktionen

FinlandICD-10-FI

K59Muut toiminnalliset suolisairaudet

GermanyICD-10-GM

K59Sonstige funktionelle Darmstörungen

FranceICD-10-FR

K59Autres troubles fonctionnels de l'intestin

NetherlandsICD-10-NL

K59overige functiestoornissen van darm

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.

Look up another code

Stop looking codes up by hand

Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.

Try Docdemic free