What is NDC 45149-014?

45149-014 is the product NDC for Carbon Dioxide, Carbon dioxide 990 mL/L gas, listed with the FDA by Messer Merchant Production LLC. It has 1 package NDC, shown above in 10- and 11-digit form.

Messer Merchant Production LLC, NDC labeler code 45149. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for Carbon Dioxide?

34 other product NDCs are listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

Carbon Dioxide NDC 45149-014 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)45149-014Labeler and product segments. Claims need a package NDC.

Product NDC at billing width45149-0014Add the package segment from the table below.

Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC	11-digit (billing)	Package	Copy
45149-014-01	45149001401	18770 L in 1 TANK (45149-014-01)Marketed from Jan 1, 1965

How the 11-digit form is made: The product segment has 3 digits, so one leading zero is added to it (5-3-2 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary): Carbon Dioxide
Generic name (nonproprietary): carbon dioxide
Active ingredients: Carbon dioxide — 990 mL/L
Dosage form: Gas
Route: Respiratory (Inhalation)
Labeler: Messer Merchant Production LLCNDC labeler code 45149
Product type: Prescription drug
Marketing category: NDA — New Drug ApplicationApplication NDA 205815
Marketing start: Jan 1, 1965
Listing expires: Dec 31, 2026
Other FDA classes: X-Ray Contrast Activity (Mechanism)
Identifiers: Product ID 45149-014_43908b47-0e31-30f1-e063-6394a90af376SPL ID 43908b47-0e31-30f1-e063-6394a90af376SPL set ID c1cba94b-7550-a95e-13ab-3c09aedde81aRxCUI 309004UNII 142M471B3J
Pharmacologic class: Radiographic Contrast Agent

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No drug-specific HCPCS code in Med-Code's directory for this product. The directory is curated and not complete — check the current CMS HCPCS file before billing.

NDC on a medical claim

N445149001401 followed by a unit qualifier and the quantity

Package 45149-0014-01. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective Nov 14, 2025.

Full label on DailyMed (opens in a new tab)

About NDC 45149-014

What is NDC 45149-014?: 45149-014 is the product NDC for Carbon Dioxide, Carbon dioxide 990 mL/L gas, listed with the FDA by Messer Merchant Production LLC. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: Carbon Dioxide.
What is the active ingredient?: Carbon dioxide.
Who is the labeler?: Messer Merchant Production LLC, NDC labeler code 45149. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for Carbon Dioxide?: 34 other product NDCs are listed under this name. See all Carbon Dioxide NDCs.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

Other finished products listed under the same name: strengths, forms and labelers.

Other Carbon Dioxide NDCs
Product	Strength	Form · route	Labeler	Product NDC	Package NDCs (11-digit)
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	WELDERS SUPPLY COMPANY OF LOUISVILLE, INC.	84078-003	84078-0003-0184078-0003-02
Carbon Dioxide	Carbon dioxide 998 mL/L	GasRespiratory (Inhalation)	Holston Gases, Inc	55050-0030	55050-0030-0155050-0030-0255050-0030-03+3 more
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	MITCHELL WELDING SUPPLY DBA Meritus Texas	72276-004	72276-0004-0172276-0004-0272276-0004-03+2 more
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	DJB Gas Services, Inc	43621-007	43621-0007-0143621-0007-0243621-0007-03+1 more
Carbon Dioxide	Carbon dioxide 992 mL/L	GasRespiratory (Inhalation)	Central Welding Supply Company	70151-030	70151-0030-0170151-0030-02
Carbon Dioxide	Carbon dioxide 992 mL/L	GasRespiratory (Inhalation)	WSM SUPPLIER LLC.	84120-002	84120-0002-0184120-0002-0284120-0002-03+12 more
Carbon Dioxide	Carbon dioxide 1 g/g	GasRespiratory (Inhalation)	AIRGAS THERAPEUTICS LLC	82605-001	82605-0001-0182605-0001-02
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Haun Specialty Gases, Inc.	14961-009	14961-0009-0114961-0009-0214961-0009-03+1 more
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Arcet Equipment Company dba Arc3 Gases North	59788-003	59788-0003-0559788-0003-0659788-0003-07+1 more
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	A-OX Welding Supply, LLC	10297-020	10297-0020-0110297-0020-02

All 35 Carbon Dioxide NDCs

Other NDCs under NDA 205815

Products listed under the same FDA application: other strengths and forms, and repackagers who relabel the same product.

FDA NDC Directory listings under NDA 205815
Product	Strength	Form · route	Labeler	Product NDC
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	MESSER GAS PUERTO RICO, INC	52374-103