Question 1

What is HCPCS code G9321?

Accepted Answer

HCPCS code G9321 is "Prev ct nuc med cnt doc 12mo". 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

Question 2

What category is G9321 in?

Accepted Answer

G9321 belongs to HCPCS Category G (Procedures/Professional Services).

Question 3

When should I use HCPCS code G9321?

Accepted Answer

Use G9321 when billing for prev ct nuc med cnt doc 12mo. HCPCS Level II codes like this are used for items and services not covered by CPT codes, including medical supplies, equipment, drugs administered in clinical settings, and certain healthcare services.

Question 4

Is G9321 covered by Medicare?

Accepted Answer

Coverage for G9321 (Prev ct nuc med cnt doc 12mo) depends on medical necessity and specific Medicare guidelines. Check the applicable Local Coverage Determination (LCD) or National Coverage Determination (NCD) for detailed coverage criteria. Private insurers may have different coverage policies.

Question 5

What documentation is required for G9321?

Accepted Answer

Documentation for G9321 should include: the medical necessity for the item or service, supporting diagnosis codes (ICD-10), prescription or order from the treating physician, and proof that the item meets quality standards. Some items may require additional documentation like a Certificate of Medical Necessity (CMN).