Q89.4
Conjoined twins
Billable FY2026 2025-10-01 → 2026-09-30
Instructional notes 4
Q89.4code
Inclusion terms
- Craniopagus
- Dicephaly
- Pygopagus
- Thoracopagus
Index entries leading here 18
- Twin (newborn) — see also Newborn, twin
- conjoined Q89.4
- Conjoined twins Q89.4
- Craniopagus Q89.4
- Dicephalus, dicephaly Q89.4
- Double
- monster Q89.4
- Epignathus Q89.4
- Fusion, fused (congenital)
- twins Q89.4
- Ischiopagus Q89.4
- Janiceps Q89.4
- Monster, monstrosity (single) Q89.7
- twin Q89.4
- Parasitic — see also condition
- twin Q89.4
- Pygopagus Q89.4
- Rudimentary (congenital) — see also Agenesis
- respiratory organs in thoracopagus Q89.4
- Siamese twin Q89.4
- Sternopagus Q89.4
- Syncephalus Q89.4
- Thoracopagus Q89.4
- Xiphopagus Q89.4
Alongside this code 7 same parent — Q89
Q89.0 Congenital absence and malformations of spleen category Q89.1 Congenital malformations of adrenal gland Q89.2 Congenital malformations of other endocrine glands Q89.3 Situs inversus Q89.7 Multiple congenital malformations, not elsewhere classified Q89.8 Other specified congenital malformations category Q89.9 Congenital malformation, unspecified
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.