HCPCS Level II drug code
J1100 — Injection, dexamethasone sodium phosphate, 1 mg
In short
J1100 is the HCPCS Level II code for injection, dexamethasone sodium phosphate, 1 mg. CMS assigns NDCs for Dexamethasone Sodium Phosphate to it. One billing unit is 1 mg. The Medicare Part B payment limit is $0.099 per unit (October 1, 2026 through December 31, 2026).
Code
CMS HCPCS fileHCPCS codeJ1100
Billing unit1 mg
- Descriptor
- Injection, dexamethasone sodium phosphate, 1 mg
- Short descriptor
- Dexamethasone sodium phos
- Code set
- HCPCS Level II, maintained by CMS
- Effective
- Jan 1, 2001
The billing unit is read from the descriptor. Confirm it against the CMS file before billing.
Medicare Part B payment limit
CMS ASP filePayment limit per unit$0.099
Per1 mg
Coinsurance20%
Effective October 1, 2026 through December 31, 2026. Payment allowance limits subject to the ASP methodology are based on 2Q26 ASP data. A payment limit is not a coverage decision; the Medicare contractor decides coverage. CMS ASP pricing files
Units and claim line
Units = dose given ÷ 1 mg. For example, 100 mg is 100 units. Enter the dose to get the units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
NDCs billed under J1100
CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 54 NDCs to J1100 for Dexamethasone Sodium Phosphate. Billing units per package are CMS’s figures for this code’s unit.
| Drug | NDC (11-digit) | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| Dexamethasone Sodium Phosphate | 00404-9795-30 | Henry Schein Inc. | 30 | 120 |
| Dexamethasone Sodium Phosphate | 00404-9805-05 | Henry Schein Inc. | 5 | 20 |
| Dexamethasone Sodium Phosphate | 00404-9841-05 | Henry Schein Inc. | 5 | 20 |
| Dexamethasone Sodium Phosphate | 00404-9842-10 | Henry Schein Inc. | 10 | 100 |
| Dexamethasone Sodium Phosphate | 00404-9843-30 | Henry Schein Inc. | 30 | 120 |
| Dexamethasone Sodium Phosphate | 00641-0367-25 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 00641-6145-25 | Hikma Pharmaceuticals USA Inc. | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 00641-6146-10 | Hikma Pharmaceuticals USA Inc. | 10 × 5 | 200 |
| Dexamethasone Sodium Phosphate | 00641-6146-25 | Hikma Pharmaceuticals USA Inc. | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 25021-0052-01 | Sagent Pharmaceuticals | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 25021-0052-05 | Sagent Pharmaceuticals | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 25021-0053-01 | Sagent Pharmaceuticals | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 50090-0414-00 | A-S Medication Solutions | 30 | 120 |
| Dexamethasone Sodium Phosphate | 50090-0627-02 | A-S Medication Solutions | 2 × 5 | 40 |
| Dexamethasone Sodium Phosphate | 50090-1922-00 | A-S Medication Solutions | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 50090-1922-01 | A-S Medication Solutions | 1 | 4 |
| Dexamethasone Sodium Phosphate | 50090-2313-02 | A-S Medication Solutions | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 50090-3300-00 | A-S Medication Solutions | 25 × 30 | 3,000 |
| Dexamethasone Sodium Phosphate | 50090-3541-00 | A-S Medication Solutions | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 51662-1297-01 | HF Acquisition Co. LLC, DBA HealthFirst | 5 | 20 |
| Dexamethasone Sodium Phosphate | 51662-1297-03 | HF Acquisition Co. LLC, DBA HealthFirst | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 51662-1343-01 | HF Acquisition Co. LLC, DBA HealthFirst | 1 | 10 |
| Dexamethasone Sodium Phosphate | 51662-1343-03 | HF Acquisition Co. LLC, DBA HealthFirst | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 51662-1541-01 | HF Acquisition Co. LLC, DBA HealthFirst | 10 | 100 |
| Dexamethasone Sodium Phosphate | 51662-1660-01 | HF Acquisition Co. LLC, DBA HealthFirst | 5 | 20 |
| Dexamethasone Sodium Phosphate | 51662-1660-03 | HF Acquisition Co. LLC, DBA HealthFirst | 10 × 5 | 200 |
| Dexamethasone Sodium Phosphate | 55150-0239-30 | Eugia US LLC | 25 × 30 | 3,000 |
| Dexamethasone Sodium Phosphate | 55150-0304-25 | Eugia US LLC | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 55150-0305-10 | Eugia US LLC | 10 × 10 | 1,000 |
| Dexamethasone Sodium Phosphate | 63323-0165-01 | FreseniUS Kabi USA, LLC | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 63323-0165-05 | FreseniUS Kabi USA, LLC | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 63323-0165-16 | FreseniUS Kabi USA, LLC | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 63323-0165-26 | FreseniUS Kabi USA, LLC | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 63323-0165-30 | FreseniUS Kabi USA, LLC | 30 | 120 |
| Dexamethasone Sodium Phosphate | 63323-0506-01 | FreseniUS Kabi USA, LLC | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 63323-0506-16 | FreseniUS Kabi USA, LLC | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 63323-0516-10 | FreseniUS Kabi USA, LLC | 10 × 10 | 1,000 |
| Dexamethasone Sodium Phosphate | 67457-0418-05 | Mylan Institutional LLC | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 67457-0419-01 | Mylan Institutional LLC | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 67457-0420-10 | Mylan Institutional LLC | 10 × 10 | 1,000 |
| Dexamethasone Sodium Phosphate | 67457-0421-30 | Mylan Institutional LLC | 25 × 30 | 3,000 |
| Dexamethasone Sodium Phosphate | 67457-0422-54 | Mylan Institutional LLC | 25 × 5 | 500 |
| Dexamethasone Sodium Phosphate | 67457-0423-12 | Mylan Institutional LLC | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 67457-0483-10 | Mylan Institutional LLC | 10 × 10 | 1,000 |
| Dexamethasone Sodium Phosphate | 67457-0484-30 | Mylan Institutional LLC | 25 × 30 | 3,000 |
| Dexamethasone Sodium Phosphate | 70069-0021-25 | Somerset Pharma, LLC | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 70069-0025-10 | Somerset Pharma, LLC | 10 × 10 | 1,000 |
| Dexamethasone Sodium Phosphate | 72485-0118-25 | Armas Pharmaceuticals Inc. | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 72572-0120-25 | Civica, Inc. | 25 × 1 | 100 |
| Dexamethasone Sodium Phosphate | 72572-0122-25 | Civica, Inc. | 25 × 1 | 250 |
| Dexamethasone Sodium Phosphate | 76045-0109-10 | FreseniUS Kabi USA, LLC | 24 × 1 | 240 |
| Dexamethasone Sodium Phosphate | 76045-0210-10 | FreseniUS Kabi USA, LLC | 24 × 1 | 96 |
| Dexamethasone Sodium Phosphate | 76045-0212-10 | FreseniUS Kabi USA, LLC | 24 × 1 | 240 |
| Dexamethasone Sodium Phosphate | 81565-0202-02 | Phlow Corporation | 25 × 1 | 100 |
J1100: common questions
- Is J1100 a CPT code?
- No. J1100 is a HCPCS Level II code, maintained by CMS, that identifies the drug supplied. CPT codes are five-digit numbers from the AMA that describe services. Giving the drug, for example an injection or infusion, is usually reported with a separate CPT administration code. CPT codes for drug administration.
- What NDCs are billed under J1100?
- CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 54 NDCs under J1100, for Dexamethasone Sodium Phosphate. The table on this page shows each one with its billing units per package.
- What is the Medicare payment limit for J1100?
- $0.099 per 1 mg, effective October 1, 2026 through December 31, 2026, from CMS's Part B drug payment limit file. Multiply by the units billed for the allowed amount before deductible and coinsurance. It is not a coverage decision.
- What is one billing unit of J1100?
- One unit of J1100 is 1 mg, as stated in the code's descriptor. Units to report = dose given ÷ 1 mg. J-code billing units.