HCPCS Level II · Procedures and professional services (temporary)
G9321Count of previous ct (any type of ct) and cardiac nuclear medicine (myocardial perfusion or infarct avid imaging) studies documented in the 12-month period prior to the current study
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About G9321
G9321 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing count of previous ct (any type of ct) and cardiac nuclear medicine (myocardial perfusion or infarct avid imaging) studies documented in the 12-month period prior to the current study.
It was added to HCPCS effective 01/01/2014, and its current record took effect 01/01/2025.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- Prev ct nuc med cnt doc 12mo
- Date added
- 01/01/2014
- Action effective
- 01/01/2025
- BETOS
- M5B
Related G93xx codes
- G9305Intervention for presence of leak of endoluminal contents through an anastomosis not required
- G9306Intervention for presence of leak of endoluminal contents through an anastomosis required
- G9307No return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure
- G9308Unplanned return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure
- G9309No unplanned hospital readmission within 30 days of principal procedure
- G9310Unplanned hospital readmission within 30 days of principal procedure
- G9311No surgical site infection
- G9312Surgical site infection
- G9313Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis for documented reason
- G9314Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis, reason not given
- G9315Amoxicillin, with or without clavulanate, prescribed as a first line antibiotic at the time of diagnosis
- G9316Documentation of patient-specific risk assessment with a risk calculator based on multi-institutional clinical data, the specific risk calculator used, and communication of risk assessment from risk calculator with the patient or family
Common questions about G9321
Is HCPCS G9321 still valid?
- Yes. G9321 is active in the CMS October 2026 HCPCS file.
Does Medicare cover G9321?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.