G9557 – Final reports for ct, cta, mri or mra studies of the chest or neck without an incidentally found thyroid nodule < 1.0 cm noted or no nodule found
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG9557
- Long description
- Final reports for ct, cta, mri or mra studies of the chest or neck without an incidentally found thyroid nodule < 1.0 cm noted or no nodule found
- Short description
- Ct/cta/mri/a no thyr <1.0cm
- 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, 2016
- Last change
- January 1, 2022 – No change
Frequently asked questions
What is HCPCS code G9557?
G9557 is a HCPCS Level II code for final reports for ct, cta, mri or mra studies of the chest or neck without an incidentally found thyroid nodule < 1.0 cm noted or no nodule found.
Does Medicare cover G9557?
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
- G9549 – Documentation of medical reason(s) that follow-up imaging is indicated (e.g., patient has lymphadenopathy, signs of metastasis or an active diagnosis or history of cancer, and other medical reason(s))
- G9550 – Final reports for imaging studies with follow-up imaging recommended, or final reports that do not include a specific recommendation of no follow-up
- G9551 – Final reports for imaging studies without an incidentally found lesion noted
- G9552 – Incidental thyroid nodule < 1.0 cm noted in report
- G9553 – Prior thyroid disease diagnosis
- G9554 – Final reports for ct, cta, mri or mra of the chest or neck with follow-up imaging recommended
- G9555 – Documentation of medical reason(s) for recommending follow up imaging (e.g., patient has multiple endocrine neoplasia, patient has cervical lymphadenopathy, other medical reason(s))
- G9556 – Final reports for ct, cta, mri or mra of the chest or neck with follow-up imaging not recommended
- G9558 – Patient treated with a beta-lactam antibiotic as definitive therapy
- G9559 – Documentation of medical reason(s) for not prescribing a beta-lactam antibiotic (e.g., allergy, intolerance to beta-lactam antibiotics)
- G9560 – Patient not treated with a beta-lactam antibiotic as definitive therapy, reason not given
- G9561 – Patients prescribed opiates for longer than six weeks
- G9562 – Patients who had a follow-up evaluation conducted at least every three months during opioid therapy
- G9563 – Patients who did not have a follow-up evaluation conducted at least every three months during opioid therapy
- G9572 – Index date phq-score greater than 9 documented during the twelve month denominator identification period
- G9573 – Adult patients 18 years of age or older with major depression or dysthymia who did not reach remission at six months as demonstrated by a six month (+/-60 days) phq-9 or phq-9m score of less than five
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.