K63.8211
Billable codeSmall intestinal bacterial overgrowth, hydrogen-subtype
The ICD-10 code for small intestinal bacterial overgrowth, hydrogen-subtype is K63.8211.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K63.8212Small intestinal bacterial overgrowth, hydrogen sulfide-subtype
- K63.8219Small intestinal bacterial overgrowth, unspecified
- K63.8211Small intestinal bacterial overgrowth, hydrogen-subtype
Associated MS-DRGs
K63.8211 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 393Other Digestive System Diagnoses with MCC
- DRG 394Other Digestive System Diagnoses with CC
- DRG 395Other Digestive System Diagnoses without CC/MCC