G9455 HCPCS Level II Code: Patient underwent abdominal imaging with ultrasound, contrast enhanced ct or contrast MRI for hcc

Contextual Map

Every relationship of G9455 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)

• 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[Sibling]— CMS HCPCS Level II code set
• G9432 — Asthma well-controlled based on the act, c-act, acq, or ataq score and results documented[Sibling]— CMS HCPCS Level II code set
• G9433 — Death, permanent nursing home resident or receiving hospice or palliative care any time during the measurement period[Sibling]— CMS HCPCS Level II code set
• 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[Sibling]— CMS HCPCS Level II code set
• G9435 — Aspirin prescribed at discharge[Sibling]— CMS HCPCS Level II code set
• G9436 — Aspirin not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)[Sibling]— CMS HCPCS Level II code set
• G9437 — Aspirin not prescribed at discharge[Sibling]— CMS HCPCS Level II code set
• G9438 — P2y inhibitor prescribed at discharge[Sibling]— CMS HCPCS Level II code set
• and 32 more

Change history

• January 1, 2015 — 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 G9455 in its code family, with their registry titles.

• G9450 — History of injection drug use
• G9451 — Patient received one-time screening for hcv infection
• G9452 — Documentation of medical reason(s) for not receiving hcv antibody test due to limited life expectancy
• G9453 — Documentation of patient reason(s) for not receiving one-time screening for hcv infection (e.g., patient declined, other patient reasons)
• G9454 — One-time screening for hcv infection not received within 12-month reporting period and no documentation of prior screening for hcv infection, reason not given
• G9456 — Documentation of medical or patient reason(s) for not ordering or performing screening for hcc. medical reason: comorbid medical conditions with expected survival < 5 years, hepatic decompensation…
• G9457 — Patient did not undergo abdominal imaging and did not have a documented reason for not undergoing abdominal imaging in the submission period
• G9458 — Patient documented as tobacco user and received tobacco cessation intervention (must include at least one of the following: advice given to quit smoking or tobacco use, counseling on the benefits of…
• G9459 — Currently a tobacco non-user
• G9460 — Tobacco assessment or tobacco cessation intervention not performed, reason not given