CPT 84478

Across 76,422 services billed by 313 providers to 49,507 beneficiaries, Medicare allowed an average of $5.62 per service. That is 1.5 services per beneficiary, so this is a code patients typically receive more than once. The allowed amount is the figure that matters: it is what Medicare and the patient together owe, set by the fee schedule and adjusted for local practice costs. What a provider chose to submit has no bearing on it.

Two different numbers. Allowed is what Medicare actually allowed in that state, which includes the local practice-cost adjustment. Standardized strips that geographic adjustment out of the payment, so it is the column to use when comparing states — a difference there reflects how the code was billed, not what it costs to run a practice locally.

• 84443Blood test, thyroid stimulating hormone (tsh)$16.44
• 84439Thyroxine (thyroid chemical)$8.83
• 84481Thyroid hormone$16.57
• 84403Testosterone (hormone) level$25.20
• 84460Liver enzyme (sgpt)$5.15
• 84436Thyroxine (thyroid chemical)$6.73
• 84450Liver enzyme (sgot)$4.97
• 84480Thyroid hormone$13.88
• 84479Thyroid hormone evaluation$6.34
• 84402Testosterone (hormone) level$24.87
• 84466Transferrin (iron binding protein) level$12.45
• 84425Vitamin b-1 (thiamine) level$20.70

An allowed amount is revenue to a practice, not income to a clinician. It funds staff, premises, equipment and supplies before anyone is paid. What clinicians actually earn is published separately by the Department of Labor, and what industry pays them is published separately again by CMS — this site carries both.

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