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K31.1 - Adult hypertrophic pyloric stenosis


The ICD 10 Code for Adult hypertrophic pyloric stenosis is listed as K31.1.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: K31.1
Description: Adult hypertrophic pyloric stenosis
  • Pyloric stenosis NOS
  • Excludes1: congenital or infantile pyloric stenosis (Q40.0)
Diagnostic Related Groups
(MS-DRG v30.0)
380 - Complicated Peptic Ulcer W Mcc
381 - Complicated Peptic Ulcer W Cc
382 - Complicated Peptic Ulcer W/o Cc/mcc
383 - Uncomplicated Peptic Ulcer W Mcc
384 - Uncomplicated Peptic Ulcer W/o Mcc
Chapter Diseases of the digestive system (K00-K95)
Block Diseases of esophagus, stomach and duodenum (K20-K31)
Parent K31 - Other diseases of stomach and duodenum
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 537.0 - Acquired hypertrophic pyloric stenosis
ICD-10-CM Siblings (same level / similar specificity) of K31.1:
K31.0 - Acute dilatation of stomach
K31.2 - Hourglass stricture and stenosis of stomach
K31.3 - Pylorospasm, not elsewhere classified
K31.4 - Gastric diverticulum
K31.5 - Obstruction of duodenum
K31.6 - Fistula of stomach and duodenum
K31.7 - Polyp of stomach and duodenum
K31.8 - Other specified diseases of stomach and duodenum
K31.9 - Disease of stomach and duodenum, unspecified