Hospitals report these codes with terse, inconsistent chargemaster text. This plain-English title was written by an AI model from that text and has not been reviewed by a person, so it can be wrong. The prices on this page come straight from hospital filings and do not depend on it.
Original text from hospital filings
HC - ASSAY OF FREE THYROXIN
Middlebury, VT
See all hospitals reporting CPT 84439 →Price type
Porter Hospital Inc’s median price of $63 is 268% above the median hospital's median price ($17), higher than 81% of the 2,631 hospitals reporting CPT 84439. The highlighted bar is where this hospital falls; shaded is the middle 50% of hospitals.
Negotiated rates from the hospital’s own file: 7 payers, 10 plan rates. A facility fee, a professional fee, a per diem and a case rate are different bills, so each is listed on its own. Open a payer to see it across hospitals.
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| # | ||||
|---|---|---|---|---|
| 1 | Humana tricare facility · fee schedule · outpatient | $8.57 | $8.57 | $8.57 – $8.57 |
| 2 | Aetna medicare advantage facility · percent of total billed charges · outpatientfrom % of charges | $53.58 | $53.58 | $53.58 – $53.58 |
| 3 | UnitedHealthcare medicare advantage facility · percent of total billed charges · outpatientfrom % of charges | $53.58 | $53.58 | $53.58 – $53.58 |
| 4 | Bcbs Vt medicare advantage facility · percent of total billed charges · outpatientfrom % of charges | $54.72 | $54.72 | $54.72 – $54.72 |
| 5 | Blue Cross Blue Shield hmo facility · percent of total billed charges · outpatientfrom % of charges | $88.92 | $88.92 | $88.92 – $88.92 |
| 6 | Cigna commercial facility · percent of total billed charges · outpatientfrom % of charges | $103.68 | $103.68 | $103.68 – $103.68 |
| 7 | MultiPlan group health facility · percent of total billed charges · outpatientfrom % of charges | $108.30 | $108.30 | $108.30 – $108.30 |
| 8 | Bcbs Vt indemnity facility · fee schedule · outpatient | $111.39 | $111.39 | $111.39 – $111.39 |
| 9 | Bcbs Vt the vermont health plan/vermont health partnership facility · fee schedule · outpatient | $111.39 | $111.39 | $111.39 – $111.39 |
| 10 | UnitedHealthcare commercial facility · percent of total billed charges · outpatientfrom % of charges | $112.86 | $112.86 | $112.86 – $112.86 |
Last updated: Apr 28, 2026
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