LB16.1 Hirschsprung disease

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01


This is a developmental anomaly affecting the intestinal tract characterised by congenital absence of myenteric ganglion cells (aganglionosis) in a segment of the large bowel. Due to the absence of intrinsic innervation of the muscle layers of the affected segment, there is a loss of motor function. This results in an abnormally large or dilated colon (congenital megacolon) with intestinal occlusion or constipation. This condition becomes evident shortly after birth.

synonyms

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