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  6. 2024 ICD-10-CM Code K31.A1
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code K31.A1

Gastric intestinal metaplasia without dysplasia

ICD-10-CM Code:
K31.A1
ICD-10 Code for:
Gastric intestinal metaplasia without dysplasia
Is Billable?
Not Valid for Submission
Code Navigator:

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.A1 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of gastric intestinal metaplasia without dysplasia. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Gastric intestinal metaplasia without dysplasia

Non-specific codes like K31.A1 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for gastric intestinal metaplasia without dysplasia:

  • Use K31.A11 for Gastric intestinal metaplasia without dysplasia, involving the antrum - BILLABLE CODE

  • Use K31.A12 for Gastric intestinal metaplasia without dysplasia, involving the body (corpus) - BILLABLE CODE

  • Use K31.A13 for Gastric intestinal metaplasia without dysplasia, involving the fundus - BILLABLE CODE

  • Use K31.A14 for Gastric intestinal metaplasia without dysplasia, involving the cardia - BILLABLE CODE

  • Use K31.A15 for Gastric intestinal metaplasia without dysplasia, involving multiple sites - BILLABLE CODE

  • Use K31.A19 for Gastric intestinal metaplasia without dysplasia, unspecified site - BILLABLE CODE

Clinical Information

  • Gastric Intestinal Metaplasia

    a morphologic finding indicating the replacement of part of the gastric mucosal epithelium with intestinal-type epithelium. using immunohistochemical staining, gastric intestinal metaplasia is classified as complete or incomplete. complete intestinal metaplasia is defined by the decreased expression of gastric mucins and expression of the intestinal mucin muc2. incomplete intestinal metaplasia is defined by the co-expression of both gastric mucins and muc2.

  • Intestinal Metaplasia of Gastric Mucosa|Gastric Intestinal Metaplasia

    a morphologic finding indicating the replacement of part of the gastric mucosal epithelium with intestinal-type epithelium. using immunohistochemical staining, gastric intestinal metaplasia is classified as complete or incomplete. complete intestinal metaplasia is defined by the decreased expression of gastric mucins and expression of the intestinal mucin muc2. incomplete intestinal metaplasia is defined by the co-expression of both gastric mucins and muc2.

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - Code Added, effective from 10/1/2021 through 9/30/2022