Create codetable from scratch         Contact
Impervious (congenital) --see also Atresia
    anus Q42.3
        with fistula Q42.2
    bile duct Q44.2
    esophagus Q39.0
        with tracheoesophageal fistula Q39.1
    intestine (small) Q41.9
        large Q42.9
            specified NEC Q42.8
    rectum Q42.1
        with fistula Q42.0
    ureter --see Atresia, ureter
    urethra Q64.39