G9929 – Patient with transient or reversible cause of af (e.g., pneumonia, hyperthyroidism, pregnancy, cardiac surgery)
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG9929
- Long description
- Patient with transient or reversible cause of af (e.g., pneumonia, hyperthyroidism, pregnancy, cardiac surgery)
- Short description
- Trs/rev af
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
Z2Undefined codes- Added
- January 1, 2018
- Last change
- January 1, 2018 – No change
Frequently asked questions
What is HCPCS code G9929?
G9929 is a HCPCS Level II code for patient with transient or reversible cause of af (e.g., pneumonia, hyperthyroidism, pregnancy, cardiac surgery).
Does Medicare cover G9929?
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
- G9921 – No screening performed, partial screening performed or positive screen without recommendations and reason is not given or otherwise specified
- G9922 – Safety concerns screen provided and if positive then documented mitigation recommendations
- G9923 – Safety concerns screen provided and negative
- G9924 – Documentation of medical reason(s) for not providing safety concerns screen or for not providing recommendations, orders or referrals for positive screen (e.g., patient in palliative care, other medical reason)
- G9925 – Safety concerns screening not provided, reason not otherwise specified
- G9926 – Safety concerns screening positive screen is without provision of mitigation recommendations, including but not limited to referral to other resources
- G9927 – Documentation of system reason(s) for not prescribing an fda-approved anticoagulation due to patient being currently enrolled in a clinical trial related to af/atrial flutter treatment
- G9928 – Fda-approved anticoagulant not prescribed, reason not given
- G9930 – Patients who are receiving comfort care only
- G9931 – Documentation of cha2ds2-vasc risk score of 0 or 1 for men; or 0, 1, or 2 for women
- G9932 – Documentation of patient reason(s) for not having records of negative or managed positive tb screen (e.g., patient does not return for mantoux (ppd) skin test evaluation)
- G9933 – Adenoma(s) or colorectal cancer detected during screening colonoscopy
- G9934 – Documentation that neoplasm detected is only diagnosed as traditional serrated adenoma, sessile serrated polyp, or sessile serrated adenoma
- G9935 – Adenoma(s) or colorectal cancer not detected during screening colonoscopy
- G9936 – Surveillance colonoscopy - personal history of colonic polyps, colon cancer, or other malignant neoplasm of rectum, rectosigmoid junction, and anus
- G9937 – Diagnostic colonoscopy
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.