K63.8211

Billable

ChapterK00–K95

Ranksubcategory

Official Description

Small intestinal bacterial overgrowth, hydrogen-subtype

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 11: Diseases of the Digestive System (K00-K95).

General instructions are available for the parent sections:

View CH11 Notes

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)

K55-K64Other diseases of intestines (K55-K64)

K63Other diseases of intestine

K63.8Other specified diseases of intestine

K63.82Intestinal microbial overgrowth

K63.821Small intestinal bacterial overgrowth

K63.8211Small intestinal bacterial overgrowth, hydrogen-subtype

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K63.8211:

chapterCH11

Diseases of the digestive system (K00-K95)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K63.8211. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

1 raw paths

Overgrowth1 unique routes

bacterial

small intestinal

hydrogen-subtype→K63.8211

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 393

Other Digestive System Diagnoses with MCC

DRG 394

Other Digestive System Diagnoses with CC

DRG 395

Other Digestive System Diagnoses without CC/MCC

Cross Reference

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