HCPCS Level II drug code
J7686 — Treprostinil, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, 1.74 mg
In short
J7686 is the HCPCS Level II code for treprostinil, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, 1.74 mg. CMS assigns NDCs for Tyvaso to it. One billing unit is 1.74 mg. The Medicare Part B payment limit is $830.383 per unit (October 1, 2026 through December 31, 2026).
Code
CMS HCPCS file- Descriptor
- Treprostinil, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, 1.74 mg
- Short descriptor
- Treprostinil, non-comp unit
- Code set
- HCPCS Level II, maintained by CMS
- Effective
- Jan 1, 2011
The billing unit is read from the descriptor. Confirm it against the CMS file before billing.
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
Units and claim line
Units = dose given ÷ 1.74 mg. For example, 174 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 J7686
CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 4 NDCs to J7686 for Tyvaso. Billing units per package are CMS’s figures for this code’s unit.
| Drug | NDC (11-digit) | Labeler | Package | Billing units per package |
|---|---|---|---|---|
| Tyvaso | 66302-0206-01 | United Therapeutics Corporation | 28 × 2.9 | 28 |
| Tyvaso | 66302-0206-02 | United Therapeutics Corporation | 28 × 2.9 | 28 |
| Tyvaso | 66302-0206-03 | United Therapeutics Corporation | 4 × 2.9 | 4 |
| Tyvaso | 66302-0206-04 | United Therapeutics Corporation | 4 × 2.9 | 4 |
J7686: common questions
- Is J7686 a CPT code?
- No. J7686 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 J7686?
- CMS's ASP crosswalk for October 1, 2026 through December 31, 2026 lists 4 NDCs under J7686, for Tyvaso. The table on this page shows each one with its billing units per package.
- What is the Medicare payment limit for J7686?
- $830.383 per 1.74 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 J7686?
- One unit of J7686 is 1.74 mg, as stated in the code's descriptor. Units to report = dose given ÷ 1.74 mg. J-code billing units.