G9555 HCPCS Level II Code: 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))
Medicare Coverage & Payment
- CMS short descriptor: Doc med rsn for follup image
- Medicare coverage: Carrier judgment (CMS coverage code C)
- Payment category: Service not separately priced (pricing indicator 00)
- BETOS: Z2 — Undefined codes
- Last CMS action effective: January 1, 2017
Source: CMS HCPCS Level II release. Coverage codes indicate how Medicare treats the code, not whether a specific claim will be paid; payer policy and documentation still govern.
Contextual Map
Every relationship of G9555 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)
- 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
- G9537 — Imaging needed as part of a clinical trial; or other clinician ordered the study[Sibling]— CMS HCPCS Level II code set
- G9538 — Advanced brain imaging (cta, ct, mra or mri) was ordered[Sibling]— CMS HCPCS Level II code set
- G9539 — Intent for potential removal at time of placement[Sibling]— CMS HCPCS Level II code set
- G9540 — Patient alive 3 months post procedure[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
Change history
- January 1, 2016Added to the code setDocumentation of medical reason(s) for recommending follow up imaging (e.g., patient has multiple endocrine neoplasia, patient has cervical lymphadenopathy, other medical reason(s))
Nearest Codes in This Family
Official HCPCS Level II classifications closest to G9555 in its code family, with their registry titles.
- 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
- G9556 — Final reports for ct, cta, mri or mra of the chest or neck with follow-up imaging not recommended
- 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
- 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