Q89.4 is the ICD-10 code for Conjoined twins. It is a four-character subcategory of Q89 (Other congenital malformations, not elsewhere classified), the most specific level in the WHO edition. It belongs to the block Q80–Q89 (Other congenital malformations) in Chapter XVII, Congenital malformations, deformations and chromosomal abnormalities.
- Code type
- Subcategory (4 characters)
- Chapter
- XVII · Q00–Q99
- Classification
- WHO ICD-10, 2019 version
What Q89.4 includes
Conditions and terms that are coded here.
- Craniopagus
- Dicephaly
- Double monster
- Pygopagus
- Thoracopagus
Q89.4 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
Q89.4Sammenvokste tvillinger
DQ894Siamesiske tvillinger
- DQ894AKraniopagi
- DQ894BDicefali
- DQ894CDiplopagi
- DQ894DPygopagi
- DQ894EThoracopagi
- DQ894FXiphopagi
Q89.4Yhteenliittyneet kaksoset
- Q89.40Kaksipäisyys
- Q89.41Päästään yhteen liittyneet kaksoset
- Q89.42Rintakehästään yhteen liittyneet kaksoset
- Q89.43Rintalastastaan yhteen liittyneet kaksoset
- Q89.44Lantiostaan yhteen liittyneet kaksoset
- Q89.48Muu määritetty yhteenliittyneet kaksoset
Q89.4Siamesische Zwillinge
Q89.4Jumeaux soudés
Q89.4Siamese tweeling
Q89.4Conjoined twins
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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