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Q89.4 - Conjoined twins


The ICD 10 Code for Conjoined twins is listed as Q89.4.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: Q89.4
Description: Conjoined twins
  • Craniopagus
  • Dicephaly
  • Pygopagus
  • Thoracopagus
Diagnostic Related Groups
(MS-DRG v30.0)
393 - Other Digestive System Diagnoses W Mcc
394 - Other Digestive System Diagnoses W Cc
395 - Other Digestive System Diagnoses W/o Cc/mcc
793 - Full Term Neonate W Major Problems
Chapter Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Block Other congenital malformations (Q80-Q89)
Parent Q89 - Other congenital malformations, not elsewhere classified
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 759.4 - Conjoined twins
ICD-10-CM Siblings (same level / similar specificity) of Q89.4:
Q89.0 - Congenital absence and malformations of spleen
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
Q89.9 - Congenital malformation, unspecified