Modifier P6 indicates a declared brain‑dead patient whose organs are being removed for donor purposes. It is part of the Anesthesia Physical Status Modifiers (P1–P6) and corresponds to ASA VI. The anesthesia provider assigns P6 and should append it to anesthesia CPT codes in the 00100–01999 range when organ procurement is performed; coders should not independently determine or apply this modifier. Medical record documentation must clearly support brain death and donor status, typically including confirmation by two physicians independent of the transplant team.

From a billing and reimbursement perspective, P6 is informational. CMS/Medicare treats physical status modifiers — including P6 — as informational only and does not grant additional units or payment. Most private payers follow Medicare’s lead and likewise do not provide extra reimbursement for P6; examples include AmeriHealth and Sentara Health Plans which explicitly treat these modifiers as non‑payable. When submitting claims the modifier is included for clinical transparency and payer reporting, but payment is calculated using base anesthesia units plus time units multiplied by the conversion factor without an added physical‑status premium.

In practice, a typical submission for an organ procurement case might be anesthesia CPT code (for example, 00530) with modifier P6 appended (00530‑P6). The claim should be supported by anesthesia documentation of brain‑death determination and donor intent. Always check the specific payer’s published policy; while most payers treat P6 as informational, rare non‑CMS contracts could differ and should be confirmed rather than assumed.