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    v1.0.30
    OpenPayerBilling CodesDrugs Administered Other than Oral MethodHCPCS hcpcs-j0593-lanadelumab-injection-physician-supervised
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    HCPCS J0593: Lanadelumab-flyo Injection, 1 mg

    HCPCS Level II code J0593 describes administration of lanadelumab-flyo as an injection dosed per 1 mg when the drug is given under the direct supervision of a physician; the service is a physician-administered injectable medication typically provided in an outpatient clinic or physician office setting rather than for self-administration.

    For related coverage guidance, see recent payer policy updates: T-Cell Lymphoma Agents: Beleodaq, Istodax, Lymphir, Poteligeo, and Romidepsin, Tumor Treatment Fields - Medical Policy, Extracorporeal Photopheresis.

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is an adult or adolescent with hereditary angioedema (HAE) receiving in-clinic administration of lanadelumab-flyo. The patient presents to an outpatient specialty infusion clinic, allergy/immunology office, or hospital outpatient department for a scheduled subcutaneous injection when self-administration is not appropriate (for example, the patient lacks training, has dexterity issues, or the payer requires clinician administration). The workflow includes check-in, verification of identity and insurance, review of indication and prior authorization, medication preparation by trained staff, informed consent and assessment of recent HAE attack history, baseline vital signs and allergy review, administration of J0593 (dose documented in mg and lot number), 15–30 minutes post-injection observation for adverse reactions, documentation of injection site, and billing with appropriate modifiers and diagnosis codes. Clinician or qualified healthcare professional supervises the drug administration and documents medical necessity, route, dose, and administration setting.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    96372Therapeutic, prophylactic, or diagnostic injection (subcutaneous or intramuscular)Commonly used for billing the administration service when J0593 is administered by a clinician in an outpatient setting
    36415Collection of venous blood by venipuncturePerformed before or during the visit for baseline labs, drug monitoring, or safety testing
    99024Postoperative follow-up visit, typically includedMay be used for related follow-up when payer allows separate billing for significant, unrelated evaluation
    99406Smoking and tobacco use cessation counseling intermediateExample of an E/M-related preventive or counseling service that might be billed separately if provided (use depends on payer rules)
    99213Office or other outpatient visit for established patient, typically 15 minutesTypical E/M code for evaluation and management associated with the medication visit when additional clinician decision-making is required

    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…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    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
    207K00000X
    2084P0800X
    363L00000X
    163WA0400X
    163WM0102X
    246QB0000X
    246ZC0007X
    364SL0600X

    Related ICD-10-CM Codes

    25 rows

    ICD-10-CM CodeDescription
    D84.1Defects in the complement system
    D84.9Immunodeficiency, unspecified
    D89.1Cryoglobulinemia
    I88.0Nonspecific mesenteric lymphadenitis
    J30.9Allergic rhinitis, unspecified
    L50.0Allergic urticaria
    L50.1Idiopathic urticaria
    L50.8Other urticaria
    L50.9Urticaria, unspecified
    R78.81Bacteremia

    Showing 1–10 of 25

    Related Payer Policy Updates

    Specialty: Hematology/Oncology1 / 3

    10 rows

    PolicyPayerEffective Date
    T-Cell Lymphoma Agents: Beleodaq, Istodax, Lymphir, Poteligeo, and RomidepsinMass General Brigham Health Plan2027-01-04
    Tumor Treatment Fields - Medical PolicyHealth-New-England2026-12-01
    Extracorporeal PhotopheresisCigna2026-11-15
    Electric Tumor Treatment Field Therapy (for Tennessee Only)Colorado Rocky Mountain Health Plans2026-11-01
    Tumor Treating Fields Therapypremerabluecrossofwashington2026-11-01
    Tumor Treating Fields Therapypremerabluecrossofwashington2026-11-01
    OmisirgeCigna2026-11-01
    Hematology - AdzynmaCigna2026-10-15
    Transcatheter Arterial Chemoembolization for Liver Tumorspremerabluecrossofwashington2026-10-01
    Cryoablation of Tumors Located in the Kidney, Lung, Breast, Pancreas, or Bonepremerabluecrossofwashington2026-10-01

    Related Codes

    HCPCS-J0013-ESKETAMINE-NASAL-SPRAY-1MG

    HCPCS Level II J0013: Esketamine Nasal Spray, 1 mg

    HCPCS-J0120-INJECTION-TETRACYCLINE-250MG

    HCPCS Level II J0120: Injection, Tetracycline, up to 250 mg

    HCPCS-J0121-OMADACYCLINE-INJECTION-1MG

    HCPCS Level II J0121: Omadacycline Injection, 1 mg

    HCPCS-J0122-ERAVACYCLINE-INJECTION-1MG

    HCPCS Level II J0122: Injection, eravacycline, 1 mg

    HCPCS-J0129-ABATACEPT-INJECTION-10MG-PHYSICIAN-SUPERVISED

    HCPCS Level II J0129: Abatacept Injection, 10 mg

    HCPCS-J0130-INJECTION-ABCIXIMAB-10MG

    HCPCS Level II J0130: Injection abciximab, 10 mg

    HCPCS-J0131-INJECTION-ACETAMINOPHEN-10MG-PARENTERAL-ANALGESIC

    HCPCS Level II J0131: Injection, Acetaminophen 10 mg

    HCPCS-J0132-INJECTION-ACETYLCYSTEINE-100MG-INJECTABLE-MEDICATION

    HCPCS Level II J0132: Injection, Acetylcysteine 100 mg

    HCPCS-J0133-ACYCLOVIR-INJECTION-5MG

    HCPCS Level II J0133: Injection, Acyclovir 5 mg

    HCPCS-J0134-ACETAMINOPHEN-INJECTION-FRESENIUS-KABI-10MG

    HCPCS Level II J0134: Injection, Acetaminophen (10 mg)

    Showing 1–10 of 991

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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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