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2. ICD-10 Codes
3. Chapter - K00-K95
4. Section - K20-K31
5. Category - K31
6. K31.9

K31.9 - Disease of stomach and duodenum, unspecified

• Applicable to Disease of stomach and duodenum, unspecified
• The 2025 edition of ICD10-CM K31.9 became effective on October 1, 2024.
• This is the American ICD10-CM version of K31.9 - other international versions of ICD10 K31.9 may differ.
• K31.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above K31.9 contain annotation back-references that may be applicable to K31.9:

• Chapter: K00-K95 - Diseases of the digestive system
• Section: K20-K31 - Diseases of esophagus, stomach and duodenum
• Category: K31 - Other diseases of stomach and duodenum

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.