2024 ICD-10-CM Diagnosis Code K31.A0
Gastric intestinal metaplasia, unspecified
- ICD-10-CM Code:
- K31.A0
- ICD-10 Code for:
- Gastric intestinal metaplasia, unspecified
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
K31.A0 is a billable diagnosis code used to specify a medical diagnosis of gastric intestinal metaplasia, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Unspecified diagnosis codes like K31.A0 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Gastric mucosal lesion
- Intestinal metaplasia of gastric mucosa
Clinical Classification
Clinical Category is Other specified and unspecified disorders of stomach and duodenum
- CCSR Category Code: DIG008
- Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
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.
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Gastric intestinal metaplasia indefinite for dysplasia
- Gastric intestinal metaplasia NOS
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Metaplasia
- - gastric intestinal - K31.A0
- - indefinite for dysplasia - K31.A0
- - gastric intestinal - K31.A0
Replacement Code
K31A0 replaces the following previously assigned ICD-10-CM code(s):
- K31.89 - Other diseases of stomach and duodenum
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
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.