How much does Medicare pay for CPT 82374?

Medicare allowed an average of $4.67 per service and paid $4.67 of that, the balance being the patient's coinsurance and deductible (2024 data). Providers submitted an average of $8.55, which is what they billed rather than what they received — Medicare pays its fee schedule regardless of the charge.

What is CPT code 82374?

Carbon dioxide (bicarbonate) level. It was billed 59,610 times to 52,424 Medicare beneficiaries by 115 providers in 2024.

Which specialty bills 82374 most?

Clinical Laboratory, with 55,207 services from 87 clinicians. Next are Family Practice, Pulmonary Disease, Endocrinology.

CPT 82374

Carbon dioxide (bicarbonate) level

$4.67Medicare-allowed amount per service, averaged across 59,610 services

Providers submitted

$8.55

Asking price, not received

Medicare allowed

$4.67

The fee schedule figure

Medicare paid

$4.67

Balance is patient coinsurance

Providers submitted an average of $8.55 for this code and Medicare allowed $4.67 — 1.8× less. That gap is normal and means nothing on its own: Medicare pays its fee schedule regardless of what is billed, so the submitted figure describes a hospital chargemaster, not a price anyone paid. Of the allowed amount Medicare paid $4.67 (100%); the rest is the patient’s coinsurance and deductible.

Services: 59,610
Beneficiaries: 52,424
Providers billing it: 115
Total allowed: $278,379

What Medicare pays for CPT 82374

Across 59,610 services billed by 115 providers to 52,424 beneficiaries, Medicare allowed an average of $4.67 per service. 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.

Who bills 82374

Specialty	Services	Beneficiaries	Avg allowed	Providers
Clinical Laboratory	55,207	49,701	$4.67	87
Family Practice	1,202	402	$4.77	1
Pulmonary Disease	681	310	$4.78	1
Endocrinology	677	346	$4.72	1
Internal Medicine	670	544	$4.78	5
Interventional Pain Management	342	341	$4.77	2
Pathology	234	229	$4.78	4
Nurse Practitioner	188	185	$4.68	5
Pain Management	179	177	$4.78	1
Urology	100	63	$4.78	4
Anesthesiology	71	71	$4.78	1
Rheumatology	42	42	$4.78	2
Hematology-Oncology	17	13	$4.78	1

82374 reimbursement by state

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.

State	Services	Allowed	Standardized pmt	Providers
California	10,552	$4.75	$4.75	18
Ohio	8,480	$4.67	$4.68	5
New Jersey	7,998	$4.68	$4.68	6
Texas	7,161	$4.71	$4.73	13
North Carolina	5,063	$4.71	$4.71	3
Arizona	3,137	$4.58	$4.58	4
Florida	3,016	$4.70	$4.74	5
Alabama	2,306	$4.70	$4.70	1
New York	2,113	$4.62	$4.63	5
Washington	1,456	$4.65	$4.66	4
Oklahoma	1,145	$3.82	$3.83	8
Kansas	1,048	$4.73	$4.73	2
Colorado	921	$4.70	$4.70	1
Illinois	895	$4.36	$4.36	3
Georgia	854	$4.78	$4.78	4
Minnesota	830	$4.78	$4.78	3
Massachusetts	639	$4.78	$4.78	4
Virginia	514	$4.76	$4.78	2
Michigan	315	$4.73	$4.73	6
Tennessee	240	$4.27	$4.27	2
Maryland	233	$4.78	$4.78	1
Pennsylvania	219	$4.78	$4.78	2
Oregon	79	$4.72	$4.72	3
South Carolina	75	$4.78	$4.78	2
Nevada	74	$4.78	$4.78	1
Louisiana	66	$4.70	$4.70	1
Wisconsin	66	$4.42	$4.79	1
Nebraska	42	$4.78	$4.78	2
Mississippi	39	$3.69	$4.80	1
District of Columbia	18	$4.68	$4.68	1
Maine	16	$2.26	$2.26	1

Related codes

82306Vitamin d-3 level$28.96
82310Calcium level$5.02
82378Carcinoembryonic antigen (cea) protein level$18.54
82330Calcium level$13.39
82340Urine calcium level$5.91
82390Ceruloplasmin (protein) level$10.52
82365Infrared analysis of stone$12.63
82397Analysis using chemiluminescent technique (light and chemical )reactio$13.82
82384Catecholamines (organic nitrogen) level$24.65
82300Cadmium level$23.10
82308Calcitonin (hormone) level$26.16
82375Carboxyhemoglobin (protein) level$12.02

Billing this code is not the same as earning it

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.

What doctors are paid →·Look up a clinician →·All procedure codes →

Where this comes from. CMS Medicare Physician & Other Practitioners, by Provider and Service, 2024. It covers fee-for-service Original Medicare Part B only — not Medicare Advantage, not Medicaid, and not commercial insurance, which typically pays more for the same code.

How it is averaged. CMS publishes one average per provider per code. Every figure here is re-weighted by the number of services, so a clinician who billed the code 4,000 times counts 4,000 times more than one who billed it twice. CMS also suppresses any provider-code pair with fewer than 11 beneficiaries, so low-volume practice is missing from these totals by design.