The U.S. Standard Certificate of Death — maintained by the National Center for Health Statistics (NCHS) — is the authoritative template for death registration in every state. Medical examiners and coroners who submit to Electronic Death Registration Systems (EDRS) must produce data that maps cleanly to its fields. Zeph's death-certificate tab and data model are aligned to this standard by design.
Why Terminology Precision Matters
Subtle differences in label wording — "Physician" vs. "Certifying Physician," or a slash-separated list vs. a comma-separated one — can create confusion during training, cause downstream parsing failures in EDRS imports, and make your data harder to validate against NCHS publication standards. These aren't cosmetic issues; they affect data quality and regulatory compliance.
Zeph tracks NCHS Item numbers directly in its constants and UI labels so that the connection between the platform and the standard is explicit, not implied.
Key Alignment Points
Certifier Types (NCHS Item 25)
The standard recognizes three certifier roles: Certifying Physician, Pronouncing and Certifying Physician, and Medical Examiner/Coroner. Zeph exposes all three — including the combined Pronouncing & Certifying role — with the exact labels the standard uses. The certifier agency field carries the NCHS Item 25c placeholder text verbatim so users know exactly what the field represents.
Cause of Death Part I — Intervals (NCHS Item 32)
The COD Part I section requires an interval field for each cause line — the approximate time between onset of the condition and death. Zeph's Death Certificate tab includes these interval fields alongside each cause-of-death line, matching the layout examiners encounter in paper forms and EDRS screens.
NVDRS-Compatible Injury Descriptors
The National Violent Death Reporting System (NVDRS) requires descriptors to follow specific formatting rules — commas rather than slashes as separators in multi-value fields. Zeph's NVDRS label set uses comma-separated values throughout, eliminating a common formatting error that can cause data rejection.
Tobacco Use (NCHS Item 35)
The standard uses the exact phrase "Did tobacco use contribute to death?" for Item 35. Zeph's label matches this verbatim — not a paraphrase — so that training materials and the system use identical language.
Decedent Identification Status
When the decedent's identity is unknown, the standard uses "Unidentified Decedent" — not "Unknown" or "Jane/John Doe." Zeph uses this exact term throughout the case-management workflow, EDRS exports, and public-portal notices.
How Zeph Maintains Alignment Over Time
All MDI-specific constants — certifier types, manner-of-death values, NVDRS
descriptors, and injury place categories — live in a single shared constants
module (mdiStandards.ts) that is version-controlled and covered by a
full regression test suite. When NCHS publishes updated guidance, the constants
module is the single place to update, and the test suite immediately flags any
consumer that doesn't reflect the change.
This architecture means alignment work stays systematic rather than becoming a manual search-and-replace exercise across dozens of files.
EDRS Adapter Framework
Death data ultimately needs to reach the state EDRS — and every state's system is different. Zeph uses an adapter pattern for EDRS submission: a common internal data structure maps to state-specific submission formats through pluggable adapters. Initial adapters for California and New York are included, and the framework is designed for additional states to be added without modifying core code.
The adapter layer handles field mapping, required-field validation, and error surfacing — so examiners see actionable messages rather than cryptic rejection codes from the state system.
For Offices Evaluating Compliance Readiness
Compliance with CDC/NCHS standards is not a checkbox — it's an ongoing maintenance obligation. If your current system uses custom field names, non-standard certifier labels, or ad-hoc cause-of-death layouts, your staff may be doing silent translation work every time they submit to EDRS. Zeph eliminates that translation layer by speaking the standard natively.