G9645 – Patients who did not abstain from smoking prior to anesthesia on the day of surgery or procedure

HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)

Active code Carrier judgment

HCPCS codeG9645
Long description
Patients who did not abstain from smoking prior to anesthesia on the day of surgery or procedure
Short description
Had smoke b/4 anes day surg
Pricing indicator
00 Not separately priced by Part B (bundled, not covered or Part A only)
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
Z2 Undefined codes
Added
January 1, 2016
Last change
January 1, 2016 – No change

Frequently asked questions

What is HCPCS code G9645?

G9645 is a HCPCS Level II code for patients who did not abstain from smoking prior to anesthesia on the day of surgery or procedure.

Does Medicare cover G9645?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby G codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.