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ICD-10 diagnosis code

Q18.5 Microstomia

This page in Swedish

Q18.5 is the ICD-10 code for Microstomia. It is a four-character subcategory of Q18 (Other congenital malformations of face and neck), the most specific level in the WHO edition. It belongs to the block Q10–Q18 (Congenital malformations of eye, ear, face and neck) in Chapter XVII, Congenital malformations, deformations and chromosomal abnormalities.

Code type
Subcategory (4 characters)
Chapter
XVII · Q00–Q99
Classification
WHO ICD-10, 2019 version

Q18.5 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

Q18.5Mikrostomi

NorwayICD-10-NO

Q18.5Mikrostomi

DenmarkICD-10-DK

DQ185Mikrostomi

FinlandICD-10-FI

Q18.5Pienisuisuus

GermanyICD-10-GM

Q18.5Mikrostomie

FranceICD-10-FR

Q18.5Microstomie

NetherlandsICD-10-NL

Q18.5microstomie

United StatesICD-10-CM

Q18.5Microstomia

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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