J2598
J2598 – Injection, vasopressin, 1 unit · NDC Crosswalk & Billing Units
HCPCS Level II J-code · Medicare Part B drug billing
J-code
● 20 NDCs crosswalked per 1 UNIT $0.490/unit ASP+6%
📋 J2598 summary
J2598 is a HCPCS Level II J-code used to bill vasopressin, 1 unit, billed per 1 UNIT. The number of billing units to report depends on the dose administered and the NDC/package billed — use the calculator below.
Brand names associated with J2598: Vasopressin, Vasostrict
Code J2598
Billing unit 1 UNIT Payment limit $0.490/unit NDC-Crosswalk 20
Quarter Q3 2026
RxCUI Atlas Trace the drug concept →
⚠ An NDC↔HCPCS crosswalk and a published payment limit do not guarantee payer coverage or payment. Always verify the current payer policy and claim format before billing.
🗂️ Key billing facts
HCPCS codeJ2598
DescriptorInjection, vasopressin, 1 unit
Billing unit1 UNIT
Payment limit / unit$0.490
Est. ASP / unit$0.462 est.
Mapped NDCs20
Data periodQ3 2026
Last updated2026-08-20
💊 About Vasopressin DRUG GUIDE
Vasopressin injection is used in hospital settings to increase blood pressure in adults with vasodilatory shock — a life-threatening condition where blood vessels relax too much, causing blood pressure to drop severely.
This includes shock following heart surgery (post-cardiotomy shock) and shock caused by severe infection (septic shock).All available vasopressin injection products — including Vasostrict, Vasopressin in 0.9% Sodium Chloride, and Vasopressin Injection, USP — are indicated for this use in adults who remain dangerously hypotensive (low blood pressure) even after receiving IV fluids and catecholamines (other blood pressure–raising drugs).
Clinical overview from our editorial drug guide for Vasopressin. For billing reference, see the sections above.
🧾 Billing & reimbursement HCPCS · CMS · EFF. Q3 2026
📅 Payment limits effective Q3 2026 — from the CMS Medicare Part B Payment Limit File (revised quarterly).
Medicare payment limit / unit
$0.490
Est. ASP / unit
$0.462 est.
Est. after 2% sequester
$0.480
HCPCS dosage
1 UNIT
The CMS payment limit is the Medicare Part B drug allowance (ASP + 6%, statutory). After the 2% federal sequester the effective payment is ≈ ASP + 4.3%; estimated ASP = payment limit ÷ 1.06. Source: CMS Medicare Part B Payment Limit File (quarterly), Q3 2026.
Full HCPCS code details (official CMS record)
Long descriptionInjection, vasopressin, 1 unit
CoverageC — Carrier/MAC judgment
Pricing indicator51 — Drug — priced under the ASP methodology
Type of service1 — Medical care
BETOS-2O1E
ASC payment groupYY
Action codeP — Payment change
Effective date2024-01-01
Date added2023-07-01
Source: CMS HCPCS Level II code file (imported via admin).
🧮 Dosing & billing-units calculator HCPCS UNITS
One billing unit of J2598 = 1 unit. Enter a regimen to convert dose → billing units and project a full course.
Billing units = dose ÷ HCPCS unit size. Most payers require whole units — round per the payer's policy. “Est. Medicare pay” uses the current payment limit. For single-dose vials, drug discarded after administration may be separately billable with modifier JW (JZ when none is discarded) where allowed. Always verify payer-specific rounding before billing.
🔁 NDCs that bill under J2598 WITH EST. MEDICARE PAY
20 NDCs map to J2598. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($0.490/unit) × that package's bill units.
| NDC (11-digit) | Drug | Labeler | Package | Strength | Bill units | Est. pay / pkg | NADAC / unit | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| 00548-9701-00 | Vasopressin 20 [USP'U]/mL INJECTION | Amphastar | 1 VIAL in 1 CARTON (0548-9701-00) / 1 mL... | 20 [USP'U]/mL | 200 | $98.00 | — | ● Active | CMS + PDAC |
| 25021-0474-01 | Vasopressin 20 [USP'U]/mL INJECTION, SOLUTION | Sagent | 25 VIAL in 1 CARTON (25021-474-01) / 1 mL... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 42023-0164-10 | Vasostrict Vasopressin 20 [USP'U]/mL INJECTION | Par | 10 VIAL in 1 CARTON (42023-164-10) / 1 mL... | 20 [USP'U]/mL | 200 | $98.00 | — | ● Active | CMS + PDAC |
| 42023-0164-25 | Vasostrict Vasopressin 20 [USP'U]/mL INJECTION | Par | 25 VIAL in 1 CARTON (42023-164-25) / 1 mL... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 42023-0164-83 | Vasostrict Vasopressin 20 [USP'U]/mL INJECTION | Par | 25 VIAL in 1 CARTON (42023-164-83) / 1 mL... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 42023-0190-01 | Vasostrict Vasopressin 20 [USP'U]/mL INJECTION | Par | 1 VIAL in 1 CARTON (42023-190-01) / 10 mL... | 20 [USP'U]/mL | 200 | $98.00 | — | ● Active | CMS + PDAC |
| 42023-0219-10 | Vasostrict Vasopressin .4 [USP'U]/mL INJECTION | Par | 10 VIAL in 1 CARTON (42023-219-10) / 100... | .4 [USP'U]/mL | 400 | $196.00 | — | ● Active | CMS + PDAC |
| 42023-0237-10 | Vasostrict Vasopressin .2 [USP'U]/mL INJECTION | Par | 10 VIAL in 1 CARTON (42023-237-10) / 100... | .2 [USP'U]/mL | 200 | $98.00 | — | ● Active | CMS + PDAC |
| 43598-0914-06 | vasopressin 20 [USP'U]/mL INJECTION | Dr. | 25 VIAL in 1 CARTON (43598-914-06) / 1 mL... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 43598-0914-25 | vasopressin 20 [USP'U]/mL INJECTION | Dr. | 25 VIAL in 1 CARTON (43598-914-25) / 1 mL... | 20 [USP'U]/mL | 500 | $245.00 | — | Obsolete | CMS + PDAC |
| 51662-1314-01 | VASOPRESSIN 20 [USP'U]/mL INJECTION | HF | 1 mL in 1 VIAL (51662-1314-1) | 20 [USP'U]/mL | 20 | $9.80 | — | ● Active | CMS ASP |
| 51662-1314-02 | VASOPRESSIN 20 [USP'U]/mL INJECTION | HF | 1 VIAL in 1 POUCH (51662-1314-2) / 1 mL i... | 20 [USP'U]/mL | 20 | $9.80 | — | ● Active | CMS ASP |
| 55150-0370-24 | VASOPRESSIN 20 [USP'U]/mL INJECTION | Eugia | 25 VIAL, MULTI-DOSE in 1 CARTON (55150-370... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 55150-0370-25 | VASOPRESSIN 20 [USP'U]/mL INJECTION | Eugia | 25 VIAL, MULTI-DOSE in 1 CARTON (55150-370... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 63323-0930-01 | VASOPRESSIN 20 [USP'U]/mL INJECTION, SOLUTION | Fresenius | 25 VIAL, SINGLE-DOSE in 1 TRAY (63323-930-... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 65219-0039-01 | VASOPRESSIN 20 [USP'U]/mL INJECTION, SOLUTION | Fresenius | 25 VIAL, SINGLE-DOSE in 1 TRAY (65219-039-... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS + PDAC |
| 70121-1642-05 | vasopressin 20 [USP'U]/mL INJECTION | Amneal | 25 VIAL in 1 CARTON (70121-1642-5) / 1 mL... | 20 [USP'U]/mL | 500 | $245.00 | — | ● Active | CMS ASP |
| 70121-1642-07 | vasopressin 20 [USP'U]/mL INJECTION | Amneal | 10 VIAL in 1 CARTON (70121-1642-7) / 1 mL... | 20 [USP'U]/mL | 200 | $98.00 | — | ● Active | CMS + PDAC |
| 42367-0570-87 | VASOPRESSIN 20 U/1 ML | Unknown | — | — | 20 | $9.80 | — | — | PDAC |
| 55150-0371-25 | VASOPRESSIN (SDV,PF,LATEX-FREE) 20 U/1 ML | Unknown | — | — | 20 | $9.80 | — | — | PDAC |
NDC→HCPCS mappings come from the CMS ASP NDC-HCPCS crosswalk; additional DME MAC / DMEPOS mappings come from PDAC and are labeled separately. NADAC from CMS (weekly). “Status” reflects the product's marketing / obsolete flag in the NDC directory. Presence or absence here does not determine Medicare coverage. Linked NDCs open the full product page.
📊 Medicare utilization & spend CMS · PART B · 2025 (Q1-Q4)
Total Part B spend
$589.66
Claims
16
Beneficiaries
15
Spend / beneficiary
$39.31
Spend / claim
$36.85
Where J2598 ranks among Part B drugs · 2025 (Q1-Q4) · neighbors ±5
Total spending — #892 of 918
#887
METRO IV* J1836
$865.37
#888
CEFUROXIME SODIUM J0697
$741.16
#889
DAPTOMYCIN(J0877) J0877
$700.51
#890
VANCOMYCIN HCL(J3372... J3372
$668.22
#891
PROGESTERONE J2675
$639.25
#892
VASOPRESSIN* J2598
$589.66
#893
NALOXONE HCL(J2310) J2310
$550.85
#894
PARICALCITOL* J2501
$545.05
#895
ARIXTRA* J1652
$502.49
#896
CALDOLOR J1741
$490.39
#897
FLUCONAZOLE-NACL J1450
$477.33
Total claims — #905 of 918
#900
VANCOMYCIN HCL(J3371... J3371
17
#901
DAUNORUBICIN HCL J9150
17
#902
SURGRAFT FT PER SQ C... Q4268
17
#903
DIGIFAB J1162
16
#904
ARISTADA INITIO J1943
16
#905
VASOPRESSIN* J2598
16
#906
GRAFIX CORE, GRAFIXP... Q4132
16
#907
PHENYTOIN SODIUM J1165
15
#908
WOUNDFIX BIOWOUND PL... Q4217
15
#909
ACETAMINOPHEN(J0134) J0134
14
#910
VIMIZIM J1322
14
Top Medicare Part B drugs by the selected metric. Click any drug to open its J-code page. Source: CMS Medicare Quarterly Part B Spending by Drug.
Full breakdown by period (1)
| Period | Total spend | Beneficiaries | Claims | $/beneficiary | $/claim |
|---|---|---|---|---|---|
| 2025 (Q1-Q4) | $589.66 | 15 | 16 | $39.31 | $36.85 |
Provider-administered (Part B) spend, calculated for the whole HCPCS code (CMS does not publish Medicare spend per individual NDC). Self-administered use is covered under Part D instead. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part B Spending by Drug (data.cms.gov), updated quarterly.
📈 Medicare Part B claims detail CMS PSPS · 2024
Calendar-year 2024 Medicare Part B fee-for-service activity for this HCPCS code, summed across all carriers, localities and specialties (CMS Physician/Supplier Procedure Summary). A “service” is one billed line/unit — not one claim — so counts run higher than claim counts.
Allowed charges
$0.00
Medicare paid
$6.59
Submitted services
151
Denial rate
100.0%
Submitted charges
$2.5K
Source: CMS Physician/Supplier Procedure Summary (PSPS), CY2024 — Medicare Part B carrier + DME fee-for-service claims (excludes Medicare Advantage). Figures are for the whole HCPCS code, which may cover uses beyond this drug. ⚠ CMS hides any figure covering fewer than 11 patients (a privacy rule), so totals — especially denials and low-volume codes — run a little low.
🗺️ Where J2598 is utilized
⏳
The geographic utilization map is building for this code — it aggregates millions of CMS Part B claim lines, then caches the result. Refresh in a moment; if it doesn’t appear, this code may have no reportable Part B utilization.
📊 What bills under J2598
J-codes are billing codes often used for drugs billed under the medical benefit. This connects the billing code to the NDC package records it covers, by ingredient and labeler.
NDC products by ingredient
NDC products by labeler
🗃️ Data sources & freshness
Every figure on this page is computed from public datasets. Here's what each section draws on and how current it is.
HCPCS code & descriptor
CMS HCPCS Level II code file
Loaded
Payment limit & billing unit
CMS Medicare Part B ASP Pricing File (quarterly)
Q3 2026 · as of 2026-08-20
NDC ↔ HCPCS crosswalk
CMS ASP NDC-HCPCS crosswalk + DMEPDAC (PDAC)
20 NDCs mapped
NADAC acquisition cost
CMS National Average Drug Acquisition Cost (weekly)
Not available for mapped NDCs
Utilization & spend
CMS Part B Spending by Drug · PSPS · Physician & Other Practitioners
Latest data year 2025
Figures are estimates for reference and may lag the source files. Always verify against the current CMS files and your payer's policy before submitting claims.
⚠️ Practical billing caveats
- A crosswalk is not coverage. An NDC mapping or a published payment limit does not guarantee a payer will cover or pay this code. Check the specific plan's policy.
- Units ≠ milligrams. Bill the number of HCPCS units (dose ÷ the code's unit size), not the milligram dose. Use the calculator above.
- Discarded drug. For single-dose vials, drug discarded after administration may be separately billable with modifier JW (and JZ when nothing is discarded) where the payer allows.
- Rounding & partial units. Many payers require whole units; round per the payer's policy, not automatically up.
- The code can cover more than this drug. Some HCPCS codes span multiple products or strengths — confirm the exact code for the product administered.
- Figures lag. ASP limits change quarterly and utilization data are released with a delay. Verify against the current CMS files before billing.
❓ J2598 billing FAQ
What is HCPCS code J2598?
J2598 is a HCPCS Level II J-code used to bill Injection, vasopressin, 1 unit under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J2598?
One unit of J2598 represents 1 UNIT. Report the number of units equal to the dose administered divided by 1 UNIT.
How many units of J2598 should I bill?
Divide the dose administered by the code's unit size (1 UNIT) to get the number of billing units, then round per your payer's policy. The calculator on this page converts a dose into billing units and projects a full course.
How much does Medicare pay for J2598?
The Medicare Part B payment limit is $0.490 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $0.480 per unit. Payment limits are revised quarterly.
Which NDCs bill under J2598?
20 NDCs currently map to J2598 in the CMS ASP NDC-HCPCS crosswalk. See the NDC crosswalk table above for each product, package, billing units and estimated reimbursement.
Does a crosswalk mean J2598 is covered?
No. An NDC-to-HCPCS crosswalk and a published payment limit do not guarantee coverage or payment. Coverage depends on the payer, the diagnosis and the site of care — always verify the current policy before billing.
For professional billing reference only — verify against the current CMS files before submitting claims.