In short

Rimso-50 is billed under HCPCS J1212 — Injection, dmso, dimethyl sulfoxide, 50%, 50 ml. One billing unit is 50 ml. CMS's crosswalk lists 1 Rimso-50 NDC under this code.

J1212 code details

Reference

J1212
Injection, dmso, dimethyl sulfoxide, 50%, 50 mlBilling unit: 50 ml
Labelers
Mylan Institutional LLC

Medicare Part B payment limit

CMS ASP file
Payment limit per unit$748.813
Per50 ml
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

Rimso-50 units and claim line

Enter the dose given to get the J1212 units and the NDC line for the CMS-1500 and the 837P.

Enter the units to build the claim line.

Rimso-50 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.

Rimso-50 NDCs in the CMS ASP crosswalk
NDC (11-digit)HCPCSLabelerPackageBilling units per package
67457-0177-50J1212Mylan Institutional LLC501

Rimso-50: common questions

What is the J-code for Rimso-50?
Rimso-50 is billed under HCPCS J1212 — Injection, dmso, dimethyl sulfoxide, 50%, 50 ml. One billing unit is 50 ml. CMS's crosswalk lists 1 Rimso-50 NDC under this code.
How many J1212 billing units are in a package of Rimso-50?
CMS lists 1 billing units per package, depending on the NDC, where one unit is 50 ml. Units to report are based on the dose given, not the package.
Is J1212 a CPT code?
No. J1212 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.

Related

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free Med-Code account to keep looking up NDCs, J-codes and drugs.

Create a free accountLog in