J1558 Injection. xembify, 100 milligrams
Also known as: Xembify, subcutaneous immunoglobulin
Xembify (human immunoglobulin subcutaneous) injection, 100 milligrams. A subcutaneous immunoglobulin for immunodeficiency replacement therapy.
In Plain Language
antibody injection therapy; immune system support
Clinical Context
Used for primary immunodeficiency requiring regular immunoglobulin replacement. Subcutaneous route allows home administration and reduced treatment burden.
RVU Information
CPT J1558 does not have a physician work RVU assigned by CMS. This is typical for supply, drug, and equipment codes — reimbursement is based on Average Sales Price (ASP), fee schedules, or payer contracts rather than the RVU system.
Billing & Documentation
J-codes represent drugs administered by a healthcare provider (not self-administered). Documentation must include the drug name, dosage, route of administration, and medical necessity. Most payers require the National Drug Code (NDC) on the claim. Bill the appropriate administration code (96365-96379) in addition to the drug code.
Specialties
Frequently Asked Questions
What is CPT code J1558?
CPT J1558 (Injection. xembify, 100 milligrams) is a J Codes (Drugs) code. Xembify (human immunoglobulin subcutaneous) injection, 100 milligrams. A subcutaneous immunoglobulin for immunodeficiency replacement therapy.
How is J1558 administered?
CPT J1558 is administered by a healthcare provider, typically via injection or infusion. Used for primary immunodeficiency requiring regular immunoglobulin replacement. Subcutaneous route allows home administration and reduced treatment burden. It is used by Immunology, Internal Medicine, Infectious Diseases.
When is CPT J1558 used?
Used for primary immunodeficiency requiring regular immunoglobulin replacement. Subcutaneous route allows home administration and reduced treatment burden.
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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.