ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 17, 2017
  ICD-10 Code for Disease of stomach & duodenum, unspecified K31.9

K31.9 is a valid1 ICD 10 diagnosis code.

K31.9 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.
See also ICD 10 code for

Related Terms to “Disease of stomach and duodenum, unspecified”

  • Disease, diseasedSee also Syndrome
    • duodenum - K31.9
    • stomach - K31.9
  • Disorder(of)See also Disease
    • gastric(functional) - K31.9
  • Disturbance(s)See also Disease
    • stomach(functional) - K31.9
  • Dysfunction
    • pylorus - K31.9
  • Gastropathy - K31.9
  • Lesion(s) (nontraumatic)
    • cardia - K31.9
    • duodenum - K31.9
    • gastric - K31.9
    • gastroduodenal - K31.9
    • pylorus - K31.9
    • stomach - K31.9
See the 2017 ICD-10-CM Coding Guidelines.

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.