CPT code 44705 covers testing donor stool for bacteria, viruses, and syphilis, followed by preparation of the screened material for instillation. The code captures a specialized process that supports fecal microbiota transplantation (FMT) and other therapeutic instillation procedures relying on screened donor stool. As FMT and related therapies expand, clear coding for donor-screening and preparation is important for accurate clinical documentation and claims processing across payers.

This analysis includes national payer perspectives from Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise benchmarks on how payers classify and reimburse this preparatory laboratory and processing service, relevant clinical context around donor screening steps, and implications for facility and laboratory billing. The publication also summarizes typical sites of service and the core clinical components embodied by the code.

What readers will learn: an overview of the clinical service represented by CPT code 44705, payer coverage landscape, typical billing and service settings, and the key clinical steps included in the code. Data not available in the input will be noted where applicable.