Loading...

    Explore
    • Policy Monitoring
    • Live Policy Feed
    • Billing Codes
    • NPI Medicare & Medicaid
    • Healthcare Providers
    • Health Insurance Payers
    • States
    • Service Lines
    • Taxonomy Codes
    Lookup tools
    • Billing Code Lookup
    • CPT Modifier Lookup
    • Provider Taxonomy Code Lookup
    • Healthcare Provider & Facility Lookup
    • Health Insurance Payer Lookup
    • Payer Contact Directory

    Policy & Benchmark Tools

    • Prior Authorization Lookup
    • Coverage Criteria Lookup
    • Timely Filing Lookup
    • Billing Code Reimbursement Rates
    • Payer Comparison Dashboard
    • Facility Comparison Dashboard
    • All tools

    Company

    • About OpenPayer
    • Data Sources
    • Trek Health
    OpenPayerby Trek Health
    LinkedInYouTube

    © 2026 Trek Health. All rights reserved.

    OpenPayer is built and maintained by Trek Health.

    v1.0.30
    OpenPayerBilling CodesChemotherapy DrugsHCPCS hcpcs-j9019-asparaginase-erwinaze-injection-1000-iu
    Ask Trek AI about this page

    HCPCS Level II J9019: Asparaginase (Erwinaze) Injection, 1,000 IU

    HCPCS Level II code J9019 describes the single-dose injectable medication asparaginase (Erwinaze) measured per 1,000 IU, used as an antineoplastic enzyme replacement therapy administered by intravenous or intramuscular injection in inpatient or outpatient oncology settings for patients requiring asparaginase treatment.

    Customize your policy alerts

    Sign up for hcpcs J9019 policy alerts

    Get alerted when payer policies referencing J9019 are released or updated.

    Monitor payer policy activity

    Receive email alerts as soon as relevant payer policies are published or updated.

    Table of contents

    Progress1 / 5

    Explore openpayer tools

    • Billing CodesCPT, HCPCS, DRG & more
    • Reimbursement RatesCommercial vs. Medicare rate reports
    • Facility ComparisonBeds, revenue & payer mix
    • ProvidersHospitals & facilities
    • PayersPlans & market footprint
    • Taxonomy CodesNUCC specialty codes
    • ModifiersCPT modifiers & usage
    • Prior AuthorizationPA policies by payer & drug
    • Timely FilingFiling deadlines by payer
    • Coverage CriteriaMedical necessity by payer
    • Payer ContactsClaims, PA & appeals contacts
    View all tools

    Clinical & Coding Specifications

    Clinical Context

    A pediatric or adult patient with acute lymphoblastic leukemia (ALL) or other malignancy requiring asparaginase therapy presents to an outpatient oncology infusion center for administration of J9019 (asparaginase [erwinaze], 1,000 IU). The patient is evaluated by the oncology nurse and supervising oncologist with review of recent labs including complete blood count, comprehensive metabolic panel, and coagulation studies to confirm eligibility for dosing. Pre-medication (e.g., antihistamine, corticosteroid) is documented when indicated to reduce hypersensitivity risk. The medication is reconstituted per institutional pharmacy protocols and administered via intramuscular or intravascular route depending on formulation and prescribing instructions. Vital signs and infusion tolerance are monitored during and after administration; adverse reactions (hypersensitivity, pancreatitis, coagulopathy) trigger escalation to the clinician and may require treatment, observation, or transfer. Documentation includes drug name, dose in IU, lot number, route, site, date/time, and relevant modifier(s) for billing. Typical sites of service are hospital outpatient infusion centers, freestanding oncology infusion clinics, or skilled nursing facilities for select patients.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    96413Chemotherapy administration, intravenous infusion technique; up to 1 hour, single or initial substance/drugCommonly billed for infusion-based chemotherapy administration when asparaginase is given intravenously and the infusion duration fits this time frame.
    96415Chemotherapy administration; each additional hour (list separately in addition to code for primary service)Billed when infusion or monitoring extends beyond the initial hour for prolonged administration or observation.
    96372Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); subcutaneous or intramuscularUsed when J9019 is administered via intramuscular or subcutaneous injection rather than infusion.
    36415Collection of venous blood by venipuncturePerformed for pre- and post-dose laboratory monitoring required for safe administration (CBC, CMP, coagulation studies).
    99024Postoperative follow-up visit global — usually included in global package; used for reporting unrelated post-op careOccasionally used to document significant follow-up care related to complications from administration when payer allows separate billing.

    Related Modifiers

    7 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207Q00000X
    208000000X
    363A00000X
    207L00000X
    2279C0205X
    202K00000X
    1835X0200X
    2279P3800X

    Related Codes

    HCPCS-J9000-DOXORUBICIN-10MG-INJECTION

    HCPCS J9000: Doxorubicin Hydrochloride Injection, 10 mg

    HCPCS-J9003-LEUPROLIDE-INJECTABLE-CAMCEVI-1MG

    HCPCS Level II J9003: Leuprolide injectable (camcevi etm), 1 mg

    HCPCS-J9010-ALEMTUZUMAB-INJECTION-10MG

    HCPCS Level II J9010: Injection, alemtuzumab, 10 mg

    HCPCS-J9011-DATOPOTAMAB-DERUXTECAN-INJECTION-1MG

    HCPCS J9011: Datopotamab Deruxtecan Injection, 1 mg

    HCPCS-J9015-ALDESLEUKIN-INJECTION-SINGLE-USE-VIAL

    HCPCS Level II J9015: Aldesleukin Injection, Single-Use Vial

    HCPCS-J9017-ARSENIC-TRIOXIDE-INJECTION-1MG

    HCPCS J9017: Arsenic Trioxide Injection, 1 mg

    HCPCS-J9020-ASPARAGINASE-INJECTION-10000-UNITS

    HCPCS J9020: Asparaginase Injection, 10,000 Units

    HCPCS-J9021-ASPARAGINASE-RYLAZE-INJECTION-0-1-MG

    HCPCS Level II J9021: Injection, asparaginase (Rylaze), 0.1 mg

    HCPCS-J9022-ATEZOLIZUMAB-INJECTION-10MG

    HCPCS J9022: Injection, atezolizumab 10 mg

    HCPCS-J9023-AVELUMAB-10MG-INJECTION

    HCPCS J9023: Avelumab Injection, 10 mg

    Showing 1–10 of 227

    • More pages

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
    Published by

    Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.