HCPCS drug code · CMS crosswalk
Cromolyn Sodium J-Code / HCPCS Code
In short
Cromolyn Sodium is billed under HCPCS J7631 — Cromolyn sodium, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per 10 milligrams. One billing unit is 10 mg. CMS's crosswalk lists 2 Cromolyn Sodium NDCs under this code.
Reference
- J7631
- Cromolyn sodium, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per 10 milligramsBilling unit: 10 mg
- Labelers
- Ivax Pharmaceuticals, Inc.; Ritedose Pharmaceuticals, LLC
Medicare Part B payment limit
CMS ASP fileEffective 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
Cromolyn Sodium units and claim line
Enter the dose given to get the J7631 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Cromolyn Sodium NDCs and billing units
From CMS’s ASP NDC–HCPCS crosswalk, effective October 1, 2026 through December 31, 2026. Billing units per package are CMS’s figures for the code’s unit.
| NDC (11-digit) | HCPCS | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| 00172-6406-49 | J7631 | Ivax Pharmaceuticals, Inc. | 60 × 2 | 120 |
| 76204-0028-60 | J7631 | Ritedose Pharmaceuticals, LLC | 60 × 2 | 120 |
Cromolyn Sodium: common questions
- What is the J-code for Cromolyn Sodium?
- Cromolyn Sodium is billed under HCPCS J7631 — Cromolyn sodium, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per 10 milligrams. One billing unit is 10 mg. CMS's crosswalk lists 2 Cromolyn Sodium NDCs under this code.
- How many J7631 billing units are in a package of Cromolyn Sodium?
- CMS lists 120 billing units per package, depending on the NDC, where one unit is 10 mg. Units to report are based on the dose given, not the package.
- Is J7631 a CPT code?
- No. J7631 is a HCPCS Level II code from CMS for the drug itself. Giving it, for example by injection or infusion, is usually reported with a separate CPT administration code.