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ICD-10 diagnosis code

Q18.4 Macrostomia

This page in Swedish

Q18.4 is the ICD-10 code for Macrostomia. 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

Q18.4 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

Q18.4Makrostomi

NorwayICD-10-NO

Q18.4Makrostomi

DenmarkICD-10-DK

DQ184Makrostomi

FinlandICD-10-FI

Q18.4Suurisuisuus

GermanyICD-10-GM

Q18.4Makrostomie

FranceICD-10-FR

Q18.4Macrostomie

NetherlandsICD-10-NL

Q18.4macrostomie

United StatesICD-10-CM

Q18.4Macrostomia

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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