G9551 HCPCS Level II Code: Final reports for imaging studies without an incidentally found lesion noted

Contextual Map

Every relationship of G9551 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Nearest codes (40)

• G9529 — Patient with minor blunt head trauma had an appropriate indication(s) for a head ct[Sibling]— CMS HCPCS Level II code set
• G9530 — Patient presented with a minor blunt head trauma and had a head ct ordered for trauma by an emergency care provider[Sibling]— CMS HCPCS Level II code set
• G9531 — Patient has documentation of ventricular shunt, brain tumor, multisystem trauma, or is currently taking an antiplatelet medication including: abciximab, anagrelide, cangrelor, cilostazol, clopidogrel, dipyridamole, eptifibatide, prasugrel, ticlopidine, ticagrelor, tirofiban, or vorapaxar[Sibling]— CMS HCPCS Level II code set
• G9532 — Patient had a head ct for trauma ordered by someone other than an emergency care provider or was ordered for a reason other than trauma[Sibling]— CMS HCPCS Level II code set
• G9533 — Patient with minor blunt head trauma did not have an appropriate indication(s) for a head ct[Sibling]— CMS HCPCS Level II code set
• G9534 — Advanced brain imaging (cta, ct, mra or mri) was not ordered[Sibling]— CMS HCPCS Level II code set
• G9535 — Patients with a normal neurological examination[Sibling]— CMS HCPCS Level II code set
• G9536 — Documentation of medical reason(s) for ordering an advanced brain imaging study (i.e., patient has an abnormal neurological examination; patient has the coexistence of seizures, or both; recent onset of severe headache; change in the type of headache; signs of increased intracranial pressure (e.g., papilledema, absent venous pulsations on funduscopic examination, altered mental status, focal neurologic deficits, signs of meningeal irritation); hiv-positive patients with a new type of headache; immunocompromised patient with unexplained headache symptoms; patient on coagulopathy/anti-coagulation or anti-platelet therapy; very young patients with unexplained headache symptoms)[Sibling]— CMS HCPCS Level II code set
• and 32 more

Change history

• January 1, 2016 — Added to the code set [Change history]— CMS release files (code change ledger)

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, descriptors, coverage and pricing attributes Official source data

CMS HCPCS Alpha-Numeric (ANWEB) release — July 2026 quarterly update Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS HCPCS quarterly update files, ingested into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official HCPCS Level II classifications closest to G9551 in its code family, with their registry titles.

• G9544 — Patients that do not have the filter removed, documented re-assessment for the appropriateness of filter removal, or documentation of at least two attempts to reach the patient to arrange a clinical…
• G9547 — Cystic renal lesion that is simple appearing (bosniak i or ii) , or adrenal lesion less than or equal to 1.0 cm or adrenal lesion greater than 1.0 cm but less than or equal to 4.0 cm classified as…
• G9548 — Final reports for imaging studies stating no follow-up imaging is recommended
• 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
• 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