G9929

G9929 — Patient with transient or reversible cause of af (e.g., pneumonia, hyperthyroidism, pregnancy, cardiac surgery)

HCPCSActiveBETOS Z2

G9929 is a HCPCS Level II code for patient with transient or reversible cause of af (e.g., pneumonia, hyperthyroidism, pregnancy, cardiac surgery). It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.

Medicare coverage: Carrier judgment

Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.

From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.

Physician fee schedule statusM

Measurement code. Used for reporting purposes only; never paid.

Global period: XXX

Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.

The CMS record for G9929

Long descriptor: Patient with transient or reversible cause of af (e.g., pneumonia, hyperthyroidism, pregnancy, cardiac surgery)
Short descriptor: Trs/rev af
Added: January 1, 2018
BETOS: Z2
Pricing indicator: 00 — Not priced by Part B

Codes adjacent to G9929

HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9929 is not quite right, the correct code is very often within a few positions of it.

G9921No screening performed, partial screening performed or positive screen without recommendations and reason is not given or otherwise specifiedterminated
G9922Safety concerns screen provided and if positive then documented mitigation recommendations
G9923Safety concerns screen provided and negative
G9924Documentation 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)terminated
G9925Safety concerns screening not provided, reason not otherwise specified
G9926Safety concerns screening positive screen is without provision of mitigation recommendations, including but not limited to referral to other resources
G9927Documentation 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 treatmentterminated
G9928Fda-approved anticoagulant not prescribed, reason not given
G9930Patients who are receiving comfort care only
G9931Documentation of cha2ds2-vasc risk score of 0 or 1 for men; or 0, 1, or 2 for women
G9932Documentation 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)terminated
G9933Adenoma(s) or colorectal cancer detected during screening colonoscopyterminated
G9934Documentation that neoplasm detected is only diagnosed as traditional serrated adenoma, sessile serrated polyp, or sessile serrated adenomaterminated
G9935Adenoma(s) or colorectal cancer not detected during screening colonoscopyterminated
G9936Surveillance colonoscopy - personal history of colonic polyps, colon cancer, or other malignant neoplasm of rectum, rectosigmoid junction, and anusterminated
G9937Diagnostic colonoscopyterminated

Questions about G9929

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). It sits in the Procedures and Professional Services (Temporary) section.

Does Medicare cover G9929?

The CMS HCPCS file marks G9929 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.

How is G9929 paid under the physician fee schedule?

G9929 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.