G9771 HCPCS Level II Code: At least 1 body temperature measurement equal to or greater than 35.5 degrees celsius (or 95.9 degrees fahrenheit) achieved within the 30 minutes immediately before or 15 minutes immediately after…
Medicare Coverage & Payment
- CMS short descriptor: Anes end, 1 temp >35.5(95.9)
- 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, 2024
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 G9771 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)
- G9751 — Patient died at any time during the 24-month measurement period[Sibling]— CMS HCPCS Level II code set
- G9752 — Emergency surgery[Sibling]— CMS HCPCS Level II code set
- G9753 — Documentation of medical reason for not conducting a search for dicom format images for prior patient ct imaging studies completed at non-affiliated external healthcare facilities or entities within the past 12 months that are available through a secure, authorized, media-free, shared archive (e.g., trauma, acute myocardial infarction, stroke, aortic aneurysm where time is of the essence)[Sibling]— CMS HCPCS Level II code set
- G9754 — A finding of an incidental pulmonary nodule[Sibling]— CMS HCPCS Level II code set
- G9755 — Documentation of medical reason(s) for not including a recommended interval and modality for follow-up or for no follow-up, and source of recommendations (e.g., patients with unexplained fever, immunocompromised patients who are at risk for infection)[Sibling]— CMS HCPCS Level II code set
- G9756 — Surgical procedures that included the use of silicone oil[Sibling]— CMS HCPCS Level II code set
- G9757 — Surgical procedures that included the use of silicone oil[Sibling]— CMS HCPCS Level II code set
- G9758 — Patient in hospice at any time during the measurement period[Sibling]— CMS HCPCS Level II code set
- and 32 more
Change history
- January 1, 2017 — 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, 2017Added to the code setAt least 1 body temperature measurement equal to or greater than 35.5 degrees celsius (or 95.9 degrees fahrenheit) achieved within the 30 minutes immediately before or 15 minutes immediately after anesthesia end time
Nearest Codes in This Family
Official HCPCS Level II classifications closest to G9771 in its code family, with their registry titles.
- G9766 — Patients who are transferred from one institution to another with a known diagnosis of cva for endovascular stroke treatment
- G9767 — Hospitalized patients with newly diagnosed cva considered for endovascular stroke treatment
- G9768 — Patients who utilize hospice services any time during the measurement period
- G9769 — Patient had a bone mineral density test in the past two years or received osteoporosis medication or therapy in the past 12 months
- G9770 — Peripheral nerve block (pnb)
- G9772 — Documentation of medical reason(s) for not achieving at least 1 body temperature measurement equal to or greater than 35.5 degrees celsius (or 95.9 degrees fahrenheit) within the 30 minutes…
- G9773 — At least 1 body temperature measurement equal to or greater than 35.5 degrees celsius (or 95.9 degrees fahrenheit) not achieved within the 30 minutes immediately before or 15 minutes immediately…
- G9774 — Patients who have had a hysterectomy
- G9775 — Patient received at least 2 prophylactic pharmacologic anti-emetic agents of different classes preoperatively and/or intraoperatively
- G9776 — Documentation of medical reason for not receiving at least 2 prophylactic pharmacologic anti-emetic agents of different classes preoperatively and/or intraoperatively (e.g., intolerance or other…