{
    "code": "84466",
    "coding_system": "CPT",
    "canonical_url": "https://localishealth.com/cpt/84466/2014/B",
    "release_specific_url": "https://localishealth.com/cpt/84466/2017/D",
    "description": "Measures transferrin, the protein that ferries iron through the bloodstream from storage sites to the bone marrow where red cells are built. It is closely tied to total iron binding capacity, which estimates the same carrying capacity by a different route. Transferrin tends to climb when the body is short of iron and drop with chronic inflammation, liver disease, or poor nutrition.",
    "answer": {
        "question": "Did Medicare pay separately for CPT 84466 in Q4 2017?",
        "text": "Not at a published national rate. CPT 84466 carries status X (statutory exclusion) in the Q4 2017 release. The statutory definition of physician services does not include this item. Treat the blank amount as unpriced, not as $0."
    },
    "release": {
        "schedule": "pfs",
        "year": 2017,
        "quarter": "D",
        "label": "Q4 2017",
        "effective": "October 1 – December 31, 2017",
        "revision": 1
    },
    "status": {
        "code": "X",
        "non_facility_payable": false,
        "facility_payable": false
    },
    "national_rates_usd": {
        "office_non_facility": null,
        "facility": null,
        "sequestration_applied": false,
        "gpci": 1
    },
    "rvus": {
        "work": null,
        "practice_expense_non_facility": null,
        "practice_expense_facility": null,
        "malpractice": null
    },
    "formula": "(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor",
    "conversion_factor": 35.8887,
    "source": {
        "label": "Physician relative value file (Q4 2017)",
        "cms_url": "https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu17d.zip",
        "local_source_url": "https://localishealth.com/sources/physician-fee-schedule/2017/D",
        "file": "PPRRVU17_OCT.csv",
        "row": 13960,
        "sha256": "4ec25bedea18799c66d10002a3731757548ccfd70e37379c856bb8a1fafe8da4"
    },
    "modified_at": "2026-08-04T03:07:59+00:00"
}