K63.8219: Small intestinal bacterial overgrowth, unspecified
K63.8219 is the billable ICD-10-CM diagnosis code for Small intestinal bacterial overgrowth, unspecified. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code K63.8219?
K63.8219 is the ICD-10-CM diagnosis code for Small intestinal bacterial overgrowth, unspecified. It belongs to category K63 (Other diseases of intestine).
Is K63.8219 a billable code?
Yes. K63.8219 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does K63.8219 belong to?
K63.8219 is part of ICD-10-CM category K63 — Other diseases of intestine, which has 28 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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