K31.A19
Billable codeGastric intestinal metaplasia without dysplasia, unspecified site
The ICD-10 code for gastric intestinal metaplasia without dysplasia, unspecified site is K31.A19.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K31.A11Gastric intestinal metaplasia without dysplasia, involving the antrum
- K31.A12Gastric intestinal metaplasia without dysplasia, involving the body (corpus)
- K31.A13Gastric intestinal metaplasia without dysplasia, involving the fundus
- K31.A14Gastric intestinal metaplasia without dysplasia, involving the cardia
- K31.A15Gastric intestinal metaplasia without dysplasia, involving multiple sites
- K31.A19Gastric intestinal metaplasia without dysplasia, unspecified site
Associated MS-DRGs
K31.A19 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 314Other Circulatory System Diagnoses with MCC
- DRG 315Other Circulatory System Diagnoses with CC
- DRG 316Other Circulatory System Diagnoses without CC/MCC
- DRG 391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC
- DRG 392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC