ICD-11 code : LD2F.12;
Preferred Label : Sirenomelia;
ICD-11 definition : Sirenomelia is a rare lethal malformation characterized by severe anomalies of the
caudal part of the fetus that include a single lower limb, with various degrees of
involvement ranging from single to separate femurs in the same skin shaft, presence
of two feet (sympode mermaid) or one foot (monopode mermaid), to absence of both feet
(ectromelic mermaid). Urogenital anomalies are also present and include bilateral
renal agenesis, absence of outflow tract and absence of external genitalia. Imperforate
anus and sacro-coccygeal agenesis have also been reported. Together these malformations
comprise the extreme form of the caudal regression sequence.;
ICD-11 synonym : Sirenomelia syndrome;
Origin ID : 473306797;
Automatic exact mappings (from CISMeF team)
- ICD-10 Mapping
Sirenomelia is a rare lethal malformation characterized by severe anomalies of the
caudal part of the fetus that include a single lower limb, with various degrees of
involvement ranging from single to separate femurs in the same skin shaft, presence
of two feet (sympode mermaid) or one foot (monopode mermaid), to absence of both feet
(ectromelic mermaid). Urogenital anomalies are also present and include bilateral
renal agenesis, absence of outflow tract and absence of external genitalia. Imperforate
anus and sacro-coccygeal agenesis have also been reported. Together these malformations
comprise the extreme form of the caudal regression sequence.
