Billable / Specific Code
ICD-10-CM K31.A21 is the diagnosis code for Gastric intestinal metaplasia with low grade dysplasia. This code falls under the section "Diseases of esophagus, stomach and duodenum" within Chapter 11 — Diseases of the digestive system (K00-K95). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where K31.A21 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, K31.A21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
K31.A21 is the ICD-10-CM diagnosis code for "Gastric intestinal metaplasia with low grade dysplasia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of K31.A21 is K31.A2 ("Gastric intestinal metaplasia with dysplasia"). K31.A21 provides a more specific classification within this category.
K31.A21 is located in Section K20-K31 — "Diseases of esophagus, stomach and duodenum" within Chapter 11 of the ICD-10-CM Tabular List.
Use K31.A21 when the patients documented diagnosis matches "Gastric intestinal metaplasia with low grade dysplasia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Gastric intestinal metaplasia with low grade dysplasia is K31.A21.
Yes, K31.A21 can be used as a primary diagnosis code since it is billable and specific.
K31.A21 is in Chapter 11 of the ICD-10-CM Tabular List.
Yes, K31.A21 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.