HCPCS Level II · Procedures and professional services (temporary)
G9450History of injection drug use
Terminated 12/31/2021
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About G9450
G9450 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing history of injection drug use.
It was added to HCPCS effective 01/01/2015, and its current record took effect 01/01/2022.
It was terminated on 12/31/2021 and can't be billed for later dates of service.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Hx injec drug use
- Date added
- 01/01/2015
- Action effective
- 01/01/2022
- Termination date
- 12/31/2021
- BETOS
- Z2
Related G94xx codes
- G9408Patients with cardiac tamponade and/or pericardiocentesis occurring within 30 days
- G9409Patients without cardiac tamponade and/or pericardiocentesis occurring within 30 days
- G9410Patient admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision
- G9411Patient not admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision
- G9412Patient admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision
- G9413Patient not admitted within 180 days, status post cied implantation, replacement, or revision with an infection requiring device removal or surgical revision
- G9414Patient had one dose of meningococcal vaccine (serogroups a, c, w, y or a, c, w, y, b) on or between the patient's 10th and 13th birthdays
- G9415Patient did not have one dose of meningococcal vaccine (serogroups a, c, w, y or a, c, w, y, b), on or between the patient's 10th and 13th birthdays
- G9416Patient had one tetanus, diphtheria toxoids and acellular pertussis vaccine (tdap) on or between the patient's 10th and 13th birthdays
- G9417Patient did not have one tetanus, diphtheria toxoids and acellular pertussis vaccine (tdap) on or between the patient's 10th and 13th birthdays
- G9418Primary non-small cell lung cancer lung biopsy and cytology specimen report documents classification into specific histologic type following iaslc guidance or classified as nsclc-nos with an explanation
- G9419Documentation of medical reason(s) for not including the histological type or nsclc-nos classification with an explanation (e.g. specimen insufficient or non-diagnostic, specimen does not contain cancer, or other documented medical reasons)
Common questions about G9450
Is HCPCS G9450 still valid?
- No. G9450 was terminated on 12/31/2021.
Does Medicare cover G9450?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.