ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
K20-K31 Diseases of esophagus, stomach and duodenum /
K31 Other diseases of stomach and duodenum
Billable ICD-10-CM Code K31.1
K31.1
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Adult hypertrophic pyloric stenosis 
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Pyloric stenosis NOS
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excludes1
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congenital or infantile pyloric stenosis (Q40.0) |
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