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    v1.0.31
    OpenPayerBilling CodesChemotherapy DrugsHCPCS hcpcs-j9210-emapalumab-injection-1mg
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    HCPCS Level II J9210: Injection, emapalumab-lzsg, 1 mg

    HCPCS Level II code J9210 represents a billed unit for the medication emapalumab-lzsg dosed as an injection, reported per 1 mg; this HCPCS Level II code is used when administering the drug as an infusion or injectable therapy, typically in an outpatient infusion center or hospital outpatient setting for treatment requiring parenteral biologic therapy.

    For related coverage guidance, see recent payer policy updates: Bendamustine Products Coverage Criteria, T-Cell Lymphoma Agents: Beleodaq, Istodax, Lymphir, Poteligeo, and Romidepsin, Brentuximab Vedotin (Adcetris®) Coverage Criteria.

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    Clinical & Coding Specifications

    Clinical Context

    A patient with suspected or confirmed primary hemophagocytic lymphohistiocytosis (HLH) or macrophage activation syndrome (MAS) is evaluated in a tertiary care immunology or hematology clinic or inpatient ward. The treating team decides to initiate targeted cytokine therapy with J9210 (emapalumab-lzsg, 1 mg) due to persistent, severe hyperinflammation evidenced by high ferritin, cytopenias, fevers, elevated soluble IL-2 receptor (sCD25), and organ dysfunction despite initial immunosuppressive measures. The service is typically delivered in an outpatient infusion center, hospital outpatient department, or inpatient setting depending on acuity.

    Workflow: the patient is assessed by a hematologist/immunologist; baseline labs (CBC, CMP, ferritin, triglycerides, fibrinogen, sCD25, infectious workup) are obtained. Medication is prepared by pharmacy and administered intravenously by infusion nursing. Vital signs and monitoring for infusion reactions and infection are performed during and after the infusion. Dosing and frequency follow specialty protocols; documentation includes indication, drug name and HCPCS code J9210, lot number, amount administered (mg), route, start/end times, and any modifiers applicable to the encounter.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    96413Chemotherapy administration, intravenous infusion technique; up to 1 hour, single or initial substance/drugCommonly used to bill the infusion administration visit for a single-agent IV biologic infusion when appropriate
    96415Chemotherapy administration, each additional hourUsed if infusion or observation extends beyond the initial hour
    96365Intravenous infusion, therapeutic, prophylactic, or diagnostic; initial, up to 1 hourAlternative for non-oncologic IV therapeutic infusions in outpatient settings
    96366Each additional hour (use with 96365/96367)Billed when infusion time exceeds the initial unit
    99070Supplies and equipment provided by the physician over and above those usually included with the serviceUsed for special infusion-related supplies not included in standard reimbursement

    Related Modifiers

    8 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…
    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…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    2080P0207X
    163W00000X
    364S00000X
    2251H1200X
    207LP4000X
    2083X0100X
    103TP0016X
    2279P3900X

    Related Payer Policy Updates

    Specialty: Hematology/Oncology1 / 3

    10 rows

    PolicyPayerEffective Date
    Bendamustine Products Coverage Criteriablue cross blue shield - tennessee2027-01-30
    T-Cell Lymphoma Agents: Beleodaq, Istodax, Lymphir, Poteligeo, and RomidepsinMass General Brigham Health Plan2027-01-04
    Brentuximab Vedotin (Adcetris®) Coverage Criteriablue cross blue shield - tennessee2026-12-31
    Pemetrexed Coverageblue cross blue shield - tennessee2026-12-31
    Tumor Treatment Fields - Medical PolicyHealth-New-England2026-12-01
    Extracorporeal PhotopheresisCigna2026-11-15
    VonvendiCigna2026-11-15
    Hematology - AphexdaCigna2026-11-15
    Extracorporeal PhotopheresisCigna2026-11-15
    Yartemlea (narsoplimab-wuug) Coverage for TA-TMANeighborhood Health Plan of Rhode Island2026-11-01

    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-J9019-ASPARAGINASE-ERWINAZE-INJECTION-1000-IU

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

    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

    Showing 1–10 of 227

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    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.
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