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ICD-10 Code K31.A12 - Gastric intestinal metaplasia without dysplasia, involving the body (corpus)

Reviewed by Medicinsk Expert•Last updated: 2026-10-22•ICD Codes

ICD-10-CM Diagnosis Code K31.A12

Diagnosis Code: K31.A12 (Raw: K31A12)

Description: Gastric intestinal metaplasia without dysplasia, involving the body (corpus)

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting (Excluded from No-Fault liability reporting).

Overview & Clinical Details

ICD-10-CM code K31.A12 is designated for Gastric intestinal metaplasia without dysplasia, involving the body (corpus). In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.

Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.