Specific code 2014 ICD-9-CM Diagnosis Code 537.0
Acquired hypertrophic pyloric stenosis
  • Billable Code
  • Short description: Acq pyloric stenosis.
  • ICD-9-CM 537.0 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 537.0 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Gastric outlet obstruction
  • Obstruction, gastric outlet
  • Pyloric obstruction
  • Pyloric stenosis
  • Stenosis, pyloric
537.0 Excludes
  • congenital or infantile pyloric stenosis (750.5)
Applies To
  • Constriction of pylorus, acquired or adult
  • Obstruction of pylorus, acquired or adult
  • Stricture of pylorus, acquired or adult
Convert to ICD-10-CM: 537.0 converts directly to:
  • 2014 ICD-10-CM K31.1 Adult hypertrophic pyloric stenosis
ICD-9-CM Volume 2 Index entries containing back-references to 537.0:
  • Constriction
    • pylorus 537.0
      • adult hypertrophic 537.0
      • congenital or infantile 750.5
      • newborn 750.5
  • Hypertrophy, hypertrophic
    • pylorus (muscle) (sphincter) 537.0
  • Insufficiency, insufficient
    • pyloric 537.0
  • Obstruction, obstructed, obstructive
    • gastric outlet 537.0
    • pylorus (acquired) 537.0
  • Occlusion
    • pylorus (see also Stricture, pylorus) 537.0
  • Spasm, spastic, spasticity (see also condition) 781.0
    • pylorus 537.81
      • adult hypertrophic 537.0
      • congenital or infantile 750.5
      • psychogenic 306.4
  • Stenosis (cicatricial) - see also Stricture
    • pylorus (hypertrophic) 537.0
  • Stricture (see also Stenosis) 799.89
    • pylorus (hypertrophic) 537.0
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 537.0 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.