ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 23, 2018
  ICD-10 Code for Adult hypertrophic pyloric stenosis K31.1

K31.1 is a valid1 ICD 10 diagnosis code.

K31.1 is valid for submission for HIPAA-covered transactions.

Chapter 11 Diseases of the digestive system (K00-K95)
Section K20-K31 Diseases of esophagus, stomach and duodenum (K20-K31)
Category K31 Other diseases of stomach and duodenum

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Pyloric stenosis NOS
  • congenital or infantile pyloric stenosis (Q40.0)
See also ICD 10 code for

Related Terms to “Adult hypertrophic pyloric stenosis”

  • ConstrictionSee also Stricture
    • pylorus(adult hypertrophic) - K31.1
  • Hypertrophy, hypertrophic
    • pylorus(adult) (muscle) (sphincter) - K31.1
  • Obstruction, obstructed, obstructive
    • gastric outlet - K31.1
    • pylorus
      • adult - K31.1
  • Occlusion, occluded
    • pylorus, adult - K31.1See also Stricture, pylorus
  • Stenosis, stenotic(cicatricial)See also Stricture
    • pylorus(hypertrophic) (acquired) - K31.1
      • adult - K31.1
  • StrictureSee also Stenosis
    • pylorus(hypertrophic) - K31.1
      • adult - K31.1
See the ICD-10-CM Coding Guidelines.

Questions related to K31.1 Adult hypertrophic pyloric stenosis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.