Coding Clarification: Reporting Fecal Microbiota Transplant (FMT) Services

Why This Topic Matters

FMT reporting can vary based on the method of instillation, patient payer type, and whether an unlisted or specific code is appropriate. Accurate understanding of this guidance helps support consistent claim reporting and documentation for a service area with evolving coding direction.

Article Sections

1. October 2025 page 18

   Publication and issue information for the coding clarification.

2. Coding Clarification: Reporting Fecal Microbiota Transplant (FMT) Services

   Overview of updated FMT reporting guidance and its relationship to prior CPT Assistant instructions.

3. Non-Medicare reporting guidance

   General reporting considerations for non-Medicare patients, including the use of unlisted and other applicable code categories based on the service context.

4. Documentation for unlisted codes

   Discussion of supporting documentation expectations when an unlisted code is used to describe a procedure or service.

5. Medicare and donor specimen guidance

   Coverage and reporting considerations for donor specimen preparation and the Medicare-specific code referenced in the article.

6. Table 1. Reporting Fecal Microbiota Transplant (FMT) Services

   Summary table linking FMT instillation techniques to the broad code categories referenced in the article.