ICD-10 K29
Non-Billable HeaderGastritis and duodenitis
About ICD-10-CM K29
ICD-10-CM code K29 represents Gastritis and duodenitis. This is a non-billable header code in the Digestive System chapter (block K29). The 2026 edition of ICD-10-CM K29 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with K29. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- eosinophilic gastritis or gastroenteritis (K52.81)
- Zollinger-Ellison syndrome (E16.4)
Medicare LCD Coverage for K29
Local Coverage Determinations (LCDs) from CMS MACs that list K29 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K29.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but K29 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with K29
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 K29
Other codes in section K20-K31 (Diseases of esophagus, stomach and duodenum).
ICD-10 K29, Billing FAQ
Is ICD-10 code K29 billable? +
No, K29 is a non-billable header code. Use a more specific child code from block K29 when submitting claims.
What codes are Type 1 Excludes for K29? +
Type 1 Excludes (never code together with K29): eosinophilic gastritis or gastroenteritis (K52.81); Zollinger-Ellison syndrome (E16.4)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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