What is NDC 46123-050?

46123-050 is the product NDC for Carbon Dioxide, Carbon dioxide 990 g/kg gas, listed with the FDA by Roberts Oxygen Company, Inc.. It has 6 package NDCs, shown above in 10- and 11-digit form.

Roberts Oxygen Company, Inc., NDC labeler code 46123. 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 46123-050 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)46123-050Labeler and product segments. Claims need a package NDC.

Product NDC at billing width46123-0050Add 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
46123-050-01	46123005001	1.13 kg in 1 CYLINDER (46123-050-01)Marketed from Jan 1, 1967
46123-050-02	46123005002	1.81 kg in 1 CYLINDER (46123-050-02)Marketed from Jan 1, 1967
46123-050-03	46123005003	2.95 kg in 1 CYLINDER (46123-050-03)Marketed from Jan 1, 1967
46123-050-04	46123005004	9.07 kg in 1 CYLINDER (46123-050-04)Marketed from Jan 1, 1967
46123-050-05	46123005005	22.68 kg in 1 CYLINDER (46123-050-05)Marketed from Jan 1, 1967
46123-050-06	46123005006	34.02 kg in 1 CYLINDER (46123-050-06)Marketed from Jan 1, 1967

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 g/kg
Dosage form: Gas
Route: Respiratory (Inhalation)
Labeler: Roberts Oxygen Company, Inc.NDC labeler code 46123
Product type: Prescription drug
Marketing category: NDA — New Drug ApplicationApplication NDA 205764
Marketing start: Jan 1, 1967
Listing expires: Dec 31, 2026
Other FDA classes: X-Ray Contrast Activity (Mechanism)
Identifiers: Product ID 46123-050_43cec13d-b900-f91d-e063-6394a90a3545SPL ID 43cec13d-b900-f91d-e063-6394a90a3545SPL set ID 2be818df-f32e-45a2-e063-6294a90a334aRxCUI 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

N446123005001 followed by a unit qualifier and the quantity

Package 46123-0050-01. 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 17, 2025.

Full label on DailyMed (opens in a new tab)

About NDC 46123-050

What is NDC 46123-050?: 46123-050 is the product NDC for Carbon Dioxide, Carbon dioxide 990 g/kg gas, listed with the FDA by Roberts Oxygen Company, Inc.. It has 6 package NDCs, 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?: Roberts Oxygen Company, Inc., NDC labeler code 46123. 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 205764

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

FDA NDC Directory listings under NDA 205764
Product	Strength	Form · route	Labeler	Product NDC
Carbon Dioxide Refrigeratedcarbon dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Messer LLC	52438-014
Carbon Dioxide Air	Carbon dioxide 200 mL/L	GasRespiratory (Inhalation)	Maine Oxy-Acetylene Supply Company	51887-402
Carbon Dioxide Oxygen	Carbon dioxide 200 mL/L	GasRespiratory (Inhalation)	Maine Oxy-Acetylene Supply Company	51887-200
Carbon Dioxide Nitrogen	Carbon dioxide 200 mL/L	GasRespiratory (Inhalation)	Maine Oxy-Acetylene Supply Company	51887-302
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Arcet Equipment Company dba Arc3 Gases North	59788-003
Carbon Dioxide	Carbon dioxide 998 mL/L	GasRespiratory (Inhalation)	Holston Gases, Inc	55050-0030
Carbon Dioxide	Carbon dioxide 995 mL/L	GasRespiratory (Inhalation)	Westair Gases & Equipment, Inc.	53440-004
Carbon Dioxide	Carbon dioxide 99 L/100L	GasRespiratory (Inhalation)	Norco, Inc	42602-006
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Machine & Welding Supply Company dba Arc3 Gases South	49575-005
Carbon Dioxide	Carbon dioxide 99 L/100L	GasRespiratory (Inhalation)	Air Source Industries Inc	10167-500
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	AGL Inhalation Therapy Co.	17575-104
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Roberts Oxygen Company, Inc.	46123-240
Carbon Dioxide	Carbon dioxide 990 mL/L	GasRespiratory (Inhalation)	Keen Compressed Gas Co. Inc.	48273-010