G9434 – Asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not given
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG9434
- Long description
- Asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not given
- Short description
- Asth not controlled
- 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, 2015
- Last change
- January 1, 2015 – No change
Frequently asked questions
What is HCPCS code G9434?
G9434 is a HCPCS Level II code for asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not given.
Does Medicare cover G9434?
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
- G9426 – Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration performed for ed admitted patients
- G9427 – Improvement in median time from ed arrival to initial ed oral or parenteral pain medication administration not performed for ed admitted patients
- G9428 – Pathology report includes the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors
- G9429 – Documentation of medical reason(s) for not including pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors (e.g., negative skin biopsies, insufficient tissue, or other documented medical reasons)
- G9430 – Specimen site other than anatomic cutaneous location
- G9431 – Pathology report does not include the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors
- G9432 – Asthma well-controlled based on the act, c-act, acq, or ataq score and results documented
- G9433 – Death, permanent nursing home resident or receiving hospice or palliative care any time during the measurement period
- G9435 – Aspirin prescribed at discharge
- G9436 – Aspirin not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)
- G9437 – Aspirin not prescribed at discharge
- G9438 – P2y inhibitor prescribed at discharge
- G9439 – P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)
- G9440 – P2y inhibitor not prescribed at discharge
- G9441 – Statin prescribed at discharge
- G9442 – Statin not prescribed for documented reasons (e.g., allergy, medical intolerance)
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.