ICD-10-CM Diagnosis Code (2025)
Official Description for K31.1
Adult hypertrophic pyloric stenosis
Coding Notes & Guidelines for K31.1
Excludes1: Not Coded Here
congenital or infantile pyloric stenosis (Q40.0)
Inclusion Terms
Pyloric stenosis NOS
Parent Code (Less Specific):
About ICD-10-CM Code K31.1 (Adult hypertrophic pyloric stenosis)
ICD-10-CM code K31.1 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM K31.1 became effective on October 1, 2024.
This page provides detailed information about K31.1 - Adult hypertrophic pyloric stenosis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Adult hypertrophic pyloric stenosis.