HCPCS drug code · CMS crosswalk
Haldol Decanoate J-Code / HCPCS Code
In short
Haldol Decanoate is billed under HCPCS J1631 — Injection, haloperidol decanoate, per 50 mg. One billing unit is 50 mg. CMS's crosswalk lists 2 Haldol Decanoate NDCs under this code.
Reference
- J1631
- Injection, haloperidol decanoate, per 50 mgBilling unit: 50 mg
- Labelers
- Janssen Pharmaceuticals, Inc.
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
Haldol Decanoate units and claim line
Enter the dose given to get the J1631 units and the NDC line for the CMS-1500 and the 837P.
Enter the dose given to build the claim line.
Haldol Decanoate 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 |
|---|---|---|---|---|
| 50458-0253-03 | J1631 | Janssen Pharmaceuticals, Inc. | 3 × 1 | 3 |
| 50458-0254-14 | J1631 | Janssen Pharmaceuticals, Inc. | 5 × 1 | 10 |
Haldol Decanoate: common questions
- What is the J-code for Haldol Decanoate?
- Haldol Decanoate is billed under HCPCS J1631 — Injection, haloperidol decanoate, per 50 mg. One billing unit is 50 mg. CMS's crosswalk lists 2 Haldol Decanoate NDCs under this code.
- How many J1631 billing units are in a package of Haldol Decanoate?
- CMS lists 3 to 10 billing units per package, depending on the NDC, where one unit is 50 mg. Units to report are based on the dose given, not the package.
- Is J1631 a CPT code?
- No. J1631 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.