AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2026 Quarter 4; New/Revised ICD-10-CM Codes
Pediatric Hypertrophic Pyloric Stenosis
Code K31.B , Hypertrophic pyloric stenosis, in childhood, was created to differentiate pediatric and childhood hypertrophic stenosis from congenital hypertrophic pyloric stenosis. Pediatric pyloric stenosis, also known as infantile hypertrophic pyloric stenosis, and hypertrophic pyloric stenosis, is a condition that is characterized by abnormal thickening of the pylorus muscle in the stomach leading to gastric outlet obstruction. This condition is the most common cause of gastric outlet obstruction which requires surgical intervention. Prior to October 1, 2026, code Q40.0 , Congenital hypertrophic pyloric stenosis, was used to capture both congenital and infantile pyloric stenosis. ...
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Article Overview
This short article introduces pediatric hypertrophic pyloric stenosis and discusses its classification in ICD-10-CM, including a date-related coding context. It is relevant to readers seeking a concise introduction to the condition and its coding history.
Why This Topic Matters
The article provides context for understanding how pediatric hypertrophic pyloric stenosis is addressed in medical coding and why classification changes may be relevant to coding work.
What You Will Learn
- The article’s general description of pediatric hypertrophic pyloric stenosis.
- The ICD-10-CM coding context discussed in relation to the condition.
- The date-related context for the coding discussion.
- intended_audiences»: [
Who Should Read This
- Medical coders
- Pediatric healthcare professionals
Codes Discussed
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