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Diagnosis Code

K31.1 ADULT HYPERTROPHIC PYLORIC STENOSIS


Code Information

Diagnosis Code: K31.1

Short Description: Adult hypertrophic pyloric stenosis

Long Description: Adult hypertrophic pyloric stenosis

The code K31.1 is VALID for claim submission

Code Classification:

  • Diseases of the digestive system (K00–K95)
    • Diseases of esophagus, stomach and duodenum (K20-K31)
      • Other diseases of stomach and duodenum (K31)
        • K31.1 Adult hypertrophic pyloric stenosis

This code is valid for adult diagnoses

Code Version: 2022 ICD-10-CM


Synonyms

  • Acquired hypertrophic pyloric stenosis
  • Acquired nonhypertrophic constriction of pylorus
  • Acquired obstruction of pylorus
  • Acquired pyloric constriction
  • Acquired pyloric stricture
  • Adult hypertrophic pyloric stenosis
  • Gastric outlet obstruction due to gallstone
  • Peptic ulcer with hemorrhage, with perforation AND with obstruction
  • Pyloric antral stenosis
  • Pyloric obstruction
  • Pyloric obstruction
  • Pyloric obstruction
  • Pyloric stenosis
  • Pyloric stenosis
  • Pyloric stenosis
  • Pyloric stenosis
  • Pyloric stenosis
  • Pyloric stenosis

Diagnostic Related Group(s)

The code K31.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Complicated Peptic Ulcer With Mcc (380)
  • Complicated Peptic Ulcer With Cc (381)
  • Complicated Peptic Ulcer Without Cc/mcc (382)

References to Index of Diseases and Injuries

The code K31.1 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Pyloric stenosis NOS
  • Type 1 Excludes Notes:
    • congenital or infantile pyloric stenosis (@Q40.0*)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
K31.1 Right Arrow 537.0 Acq pyloric stenosis

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
K31 Other diseases of stomach and duodenum
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
K31.81 Angiodysplasia of stomach and duodenum
K31.811 Angiodysplasia of stomach and duodenum with bleeding
K31.819 Angiodysplasia of stomach and duodenum without bleeding
K31.82 Dieulafoy lesion (hemorrhagic) of stomach and duodenum
K31.83 Achlorhydria
K31.84 Gastroparesis
K31.89 Other diseases of stomach and duodenum
K31.9 Disease of stomach and duodenum, unspecified
K31.A Gastric intestinal metaplasia
K31.A0 Gastric intestinal metaplasia, unspecified
K31.A1 Gastric intestinal metaplasia without dysplasia
K31.A11 Gastric intestinal metaplasia without dysplasia, involving the antrum
K31.A12 Gastric intestinal metaplasia without dysplasia, involving the body (corpus)
K31.A13 Gastric intestinal metaplasia without dysplasia, involving the fundus
K31.A14 Gastric intestinal metaplasia without dysplasia, involving the cardia
K31.A15 Gastric intestinal metaplasia without dysplasia, involving multiple sites
K31.A19 Gastric intestinal metaplasia without dysplasia, unspecified site
K31.A2 Gastric intestinal metaplasia with dysplasia
K31.A21 Gastric intestinal metaplasia with low grade dysplasia
K31.A22 Gastric intestinal metaplasia with high grade dysplasia
K31.A29 Gastric intestinal metaplasia with dysplasia, unspecified

This page was last updated on: 10/1/2023

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