G4003 HCPCS Level II Code: Emergency medicine mips specialty set
Medicare Coverage & Payment
- CMS short descriptor: Emergency med ss
- 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, 2022
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 G4003 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 (38)
- G4000 — Dermatology mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4001 — Diagnostic radiology mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4002 — Electrophysiology cardiac specialist mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4004 — Endocrinology mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4005 — Family medicine mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4006 — Gastro-enterology mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4007 — General surgery mips specialty set[Sibling]— CMS HCPCS Level II code set
- G4008 — Geriatrics mips specialty set[Sibling]— CMS HCPCS Level II code set
- and 30 more
Change history
- January 1, 2022 — 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, 2022Added to the code setEmergency medicine mips specialty set
Nearest Codes in This Family
Official HCPCS Level II classifications closest to G4003 in its code family, with their registry titles.
- G4000 — Dermatology mips specialty set
- G4001 — Diagnostic radiology mips specialty set
- G4002 — Electrophysiology cardiac specialist mips specialty set
- G4004 — Endocrinology mips specialty set
- G4005 — Family medicine mips specialty set
- G4006 — Gastro-enterology mips specialty set
- G4007 — General surgery mips specialty set
- G4008 — Geriatrics mips specialty set
- G4009 — Hospitalists mips specialty set
- G4010 — Infectious disease mips specialty set