What does the DX field FL 66 capture?

What does the DX field FL 66 capture?

• A. Version of ICD-10-CM code set used.
• B. POA status code for admission.
• C. Payer policy number.
• D. Date of admission.

Answer: (A)

The main idea is that this field records which ICD coding version was used to code the diagnoses and procedures. FL 66 tells the payer the specific ICD-10-CM/PCS version (and sometimes the release date) that applied when the codes were entered. This matters because code definitions can change with new releases, and knowing the exact version helps ensure the claim is interpreted consistently for processing, auditing, and future mapping. Other items—such as whether a diagnosis was present on admission, the actual admission date, or a payer policy number—are captured in different fields, not here, so they aren’t what this field is designed to convey.

The main idea is that this field records which ICD coding version was used to code the diagnoses and procedures. FL 66 tells the payer the specific ICD-10-CM/PCS version (and sometimes the release date) that applied when the codes were entered. This matters because code definitions can change with new releases, and knowing the exact version helps ensure the claim is interpreted consistently for processing, auditing, and future mapping. Other items—such as whether a diagnosis was present on admission, the actual admission date, or a payer policy number—are captured in different fields, not here, so they aren’t what this field is designed to convey.