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J1598

J1598 – Inj glycopyrrolate fres kabi · NDC Crosswalk & Billing Units

HCPCS Level II J-code · Medicare Part B drug billing
J-code ● 2 NDCs crosswalked per 0.1 MG $1.342/unit ASP+6%

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

📋 J1598 summary

J1598 is a HCPCS Level II J-code used to bill glycopyrrolate fres kabi, billed per 0.1 MG. 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 J1598: Glycopyrrolate(J1598)

Code J1598 Billing unit 0.1 MG Payment limit $1.342/unit NDC-Crosswalk 2 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 codeJ1598
DescriptorInj glycopyrrolate fres kabi
Billing unit0.1 MG
Payment limit / unit$1.342
Est. ASP / unit$1.266 est.
Mapped NDCs2
Data periodQ3 2026
Last updated2026-08-20

🧾 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
$1.342
Est. ASP / unit
$1.266 est.
Est. after 2% sequester
$1.315
HCPCS dosage
0.1 MG
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.

🧮 Dosing & billing-units calculator HCPCS UNITS

One billing unit of J1598 = 0.1 mg. 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 J1598 WITH EST. MEDICARE PAY

2 NDCs map to J1598. Bill units = how many HCPCS units one package represents. Est. pay / pkg = payment limit ($1.342/unit) × that package's bill units.
NDC (11-digit)DrugLabelerPackageStrength Bill units Est. pay / pkg NADAC / unit StatusSource
76045-0023-30 Glycopyrrolate .2 mg/mL INJECTION Fresenius 10 SYRINGE in 1 CARTON (76045-023-30) / 3... .2 mg/mL 60 $80.52 — ● Active CMS + PDAC
76045-0223-30 Glycopyrrolate .2 mg/mL INJECTION Fresenius 10 SYRINGE in 1 CARTON (76045-223-30) / 3... .2 mg/mL 2 $2.68 — ● Active 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
$7.6K
Claims
1,398
Beneficiaries
1,318
Spend / beneficiary
$5.75
Spend / claim
$5.42
Where J1598 ranks among Part B drugs · 2025 (Q1-Q4) · neighbors ±5
Total spending — #816 of 918
#811 DOXY 100* J1271 $8.6K #812 RECARBRIO J0742 $8.5K #813 VARUBI J8670 $8.5K #814 LEVOFLOXACIN-D5W J1956 $8.2K #815 PREDNISOLONE SODIUM... J7510 $7.9K #816 GLYCOPYRROLATE(J1598... J1598 $7.6K #817 PREHEVBRIO 90759 $7.6K #818 GASTROGRAFIN* Q9963 $7.2K #819 RECOMBIVAX HB 90743 $6.8K #820 GRAFIX CORE, GRAFIXP... Q4132 $6.5K #821 AZMIRO J1072 $6.5K
Total claims — #529 of 918
#524 NALBUPHINE HCL J2300 1,465 #525 IDELVION J7202 1,447 #526 BORTEZOMIB(J9049) J9049 1,423 #527 HELICOLL, PER SQUARE... Q4164 1,414 #528 ALPROLIX J7201 1,399 #529 GLYCOPYRROLATE(J1598... J1598 1,398 #530 SURGRAFT XT PER SQ C... Q4269 1,393 #531 KIMYRSA J2406 1,390 #532 THERAMEND, PER SQ CM... Q4342 1,390 #533 VYLOY J1326 1,343 #534 PFIZER COVID (6M-4... 91318 1,340

Full breakdown by period (1)
PeriodTotal spendBeneficiariesClaims$/beneficiary$/claim
2025 (Q1-Q4) $7.6K 1,318 1,398 $5.75 $5.42
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.

🗺️ Where J1598 is utilized

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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 J1598

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
Glycopyrrolate 2
NDC products by labeler
Fresenius Kabi USA, LLC 2

🗃️ 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
Not available in current dataset
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)
2 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.

❓ J1598 billing FAQ

What is HCPCS code J1598?
J1598 is a HCPCS Level II J-code used to bill Inj glycopyrrolate fres kabi under Medicare Part B and most medical (not pharmacy) benefits.
What is the billing unit for J1598?
One unit of J1598 represents 0.1 MG. Report the number of units equal to the dose administered divided by 0.1 MG.
How many units of J1598 should I bill?
Divide the dose administered by the code's unit size (0.1 MG) 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 J1598?
The Medicare Part B payment limit is $1.342 per unit (Q3 2026), based on ASP + 6%. After the 2% sequester the effective payment is about $1.315 per unit. Payment limits are revised quarterly.
Which NDCs bill under J1598?
2 NDCs currently map to J1598 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 J1598 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.