ICD-10 K31.A21
Billable / SpecificGastric intestinal metaplasia with low grade dysplasia
About ICD-10-CM K31.A21
ICD-10-CM code K31.A21 represents Gastric intestinal metaplasia with low grade dysplasia. This is a billable/specific code in the Digestive System chapter (block K31). The 2026 edition of ICD-10-CM K31.A21 became effective on October 1, 2025.
Medicare LCD Coverage for K31.A21
Local Coverage Determinations (LCDs) from CMS MACs that list K31.A21 as a covered diagnosis.
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Commercial Payer Coverage
Coverage policies from major commercial payers referencing K31.A21.
4 Medicare
CPT Codes Commonly Billed with K31.A21
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To K31.A21
Other codes in section K20-K31 (Diseases of esophagus, stomach and duodenum).
ICD-10 K31.A21, Billing FAQ
Is ICD-10 code K31.A21 billable? +
Yes, K31.A21 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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