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Home/Diagnosis/ICD-10 Coding for Small Intestinal Bacterial Overgrowth

ICD-10 Coding for Small Intestinal Bacterial Overgrowth

K63.8211
K63.8219
K63.829

Complete ICD-10-CM coding and documentation guide for icd-10 coding for small intestinal bacterial overgrowth includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
SIBO
Intestinal Microbial Overgrowth
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Key Information: ICD-10 Coding for Small Intestinal Bacterial Overgrowth

Essential facts and insights about ICD-10 Coding for Small Intestinal Bacterial Overgrowth

Use ICD-10 code K63.8211 for hydrogen-dominant sibo, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Hydrogen-dominant SIBO

Billable Code
K63.8211
Billable

Diagnostic Criteria

clinical_criteria:
  • Hydrogen rise ≥20 ppm over baseline by 90 minutes

Applicable To

  • • Hydrogen-dominant small intestinal bacterial overgrowth

Important Notes

  • • Ensure breath test results are documented with specific gas type and levels.

SIBO unspecified

Billable Code
K63.8219
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • SIBO confirmed via breath testing without methane/hydrogen differentiation

Applicable To

  • • Small intestinal bacterial overgrowth, unspecified

Important Notes

  • • Avoid unspecified codes when specific gas types are documented.

Intestinal Methanogen Overgrowth (IMO)

Billable Code
K63.829
Billable

Diagnostic Criteria

clinical_validation_requirements:
  • Methane ≥10 ppm at any time during breath test

Applicable To

  • • Methane-dominant small intestinal bacterial overgrowth

Important Notes

  • • Ensure methane levels are documented in breath test results.
Ancillary Codes

Additional codes that may be used with this diagnosis

R10.84

Abdominal tenderness

Use to document associated symptoms of SIBO.

R19.7

Diarrhea

Use to document associated symptoms of SIBO.

Frequently Asked Questions

What is the ICD-10 code for hydrogen-dominant SIBO?

The ICD-10 code for hydrogen-dominant SIBO is K63.8211, used when breath test confirms hydrogen rise ≥20 ppm over baseline by 90 minutes.

How do you code unspecified SIBO?

Unspecified SIBO is coded as K63.8219 when breath test confirms SIBO but does not specify gas type.

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