June 25, 2026
Important Billing Instructions for Qivigy – Immune Globulin Drug
How to avoid ANSI CARC Code CO-181, ANSI Remark Code M2 denials for Qivigy (IMMUNE GLOBULIN INTRAVENOUS, HUMAN-KTHM 10% SOLUTION):
Dates of Service: September 26, 2025 – June 30, 2026
Submit claims for Qivigy using HCPCS code J1599 (INJECTION, IMMUNE GLOBULIN, INTRAVENOUS, NON-LYOPHILIZED (E.G., LIQUID), NOT OTHERWISE SPECIFIED, (500 MG).
- One unit of service (UOS) equals 500 mg.
- Enter the drug name and dosage in the claim narrative.
Dates of Service: July 1, 2026, and After
Submit claims for Qivigy using HCPCS code J1577 (INJECTION, IMMUNE GLOBULIN (QIVIGY), (100 mg).
- One unit of service (UOS) equals 100 mg.
What to do if you receive a denial
- Resubmit the claim with a valid HCPCS code.
- Make sure the HCPCS code is effective on the date of service.
- If you disagree with the claim decision, submit a redetermination request.
For further assistance with coding, refer to

