No. J0770 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.

What NDCs are billed under J0770?

CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 10 NDCs under J0770, for Colistimethate Sodium. The table on this page shows each one with its billing units per package.

What is the Medicare payment limit for J0770?

$18.051 per 150 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.

J0770 J-Code: Colistimethate sodium — Billing Units & NDCs

In short

J0770 is the HCPCS Level II code for injection, colistimethate sodium, up to 150 mg. CMS assigns NDCs for Colistimethate Sodium to it. The Medicare Part B payment limit is $18.051 per unit (October 1, 2026 through December 31, 2026).

Code

CMS HCPCS file

HCPCS codeJ0770

Billing unitSee descriptor

Descriptor: Injection, colistimethate sodium, up to 150 mg
Short descriptor: Colistimethate sodium inj
Code set: HCPCS Level II, maintained by CMS
Effective: Jan 1, 1997

Medicare Part B payment limit

CMS ASP file

Payment limit per unit$18.051

Per150 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

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

HCPCS units

Modifier

NDC (11-digit)

NDC unit qualifier

NDC quantity

Enter the units to build the claim line.

NDCs billed under J0770

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 10 NDCs to J0770 for Colistimethate Sodium. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J0770 in the CMS ASP crosswalk
Drug	NDC (11-digit)	Labeler	Package	Billing units per package
Colistimethate Sodium	00143-9443-01	Hikma Pharmaceuticals Usa Inc.	1	1
Colistimethate Sodium	00143-9443-12	Hikma Pharmaceuticals Usa Inc.	12	12
Colistimethate Sodium	23155-0193-31	Heritage Pharmaceuticals Inc.	1	1
Colistimethate Sodium	23155-0193-41	Heritage Pharmaceuticals Inc.	12 × 1	12
Colistimethate Sodium	42023-0107-01	Endo USA, Inc.	1	1
Colistimethate Sodium	42023-0131-06	Endo USA, Inc.	6 × 1	6
Colistimethate Sodium	63323-0393-06	FreseniUS Kabi USA, LLC	1	1
Colistimethate Sodium	70594-0023-01	Xellia Pharmaceuticals USA, LLC.	1	1
Colistimethate Sodium	70594-0023-04	Xellia Pharmaceuticals USA, LLC.	12 × 1	12
Colistimethate Sodium	70594-0023-09	Xellia Pharmaceuticals USA, LLC.	1	1

J0770: common questions

Is J0770 a CPT code?: No. J0770 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 J0770?: CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 10 NDCs under J0770, for Colistimethate Sodium. The table on this page shows each one with its billing units per package.
What is the Medicare payment limit for J0770?: $18.051 per 150 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.

J0770 — Injection, colistimethate sodium, up to 150 mg