K31.1
Adult hypertrophic pyloric stenosis
Coding guidance (WHO 2019)
Pyloric stenosis NOS Excl.: congenital or infantile pyloric stenosis (Q40.0)
Sibling codes
K31Other diseases of stomach and duodenumK31.0Acute dilatation of stomachK31.2Hourglass stricture and stenosis of stomachK31.3Pylorospasm, not elsewhere classifiedK31.4Gastric diverticulumK31.5Obstruction of duodenumK31.6Fistula of stomach and duodenumK31.7Polyp of stomach and duodenumK31.8Other specified diseases of stomach and duodenumK31.9Disease of stomach and duodenum, unspecified