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Snapshot · OMB 2025 inventory · processed Oct 11, 2026
HHS · no agency ID · record R0710

Using LLM to optimize National Health Interview Survey (NHIS) case note information

Department of Health and Human Services · HHS/CDC

Overview

Development stage
PilotSource: b) Pilot – The use case has been deployed in a limited test or pilot capacity.
High-impact designation
Not high-impactSource: c) Not high-impact
Impact justification
Not reported
Start date
2025-03 (month precision)Source: Mar-25
Withheld from public reporting
NoSource: a) No

Mission

Topic area
Health and Medical
Operational functions
No function tag matched Derived by keyword rules; see methodology

Problem the AI is intended to solve

The National Health Interview Survey (NHIS) employs Census field representatives (FRs) who use open text fields, referred to as ‘case notes,’ to document their interactions with households during screening and interview processes. These case notes serve as a valuable resource, offering insights into the nature of these interactions and aiding in the identification of ‘base cases’—instances that may reveal significant data quality issues. Currently, the review of case notes is performed manually on a case-by-case basis, which limits opportunities for optimization. The objective of this initiative is to explore how large language models (LLMs) can enhance the efficiency and effectiveness of the case notes review process.

Expected benefits

Utilizing large language models (LLMs) for case note reviews provides several advantages, including substantial time and cost savings, improved data quality post data collection, and the creation of more effective training programs. These enhancements not only optimize operational efficiency but also support the goals of public health organization by ensuring that high-quality data is readily available for informed decision-making.

System outputs

Identifying additional problematic cases not referred by Census; examining all cases from some FR whose case was referred to confirm whether similar issues exist in other cases the FR worked on; identifying themes in the case notes like certain letters/respondent materials that are in use, problematic interview strategies, or respondent confusion with questions.

Technology

AI classification
Natural language processingSource: Natural Language Processing: AI that processes, interprets, and shares information in human language.
System name(s)
EDAV (Enterprise Data Analytics and Visualization Platform)
Custom-developed code
No
Public source code
Not reported

Sourcing

How it was built
Developed in-houseSource: b) Developed in-house
Vendor (as reported)
Not reported
Vendors (standardized)
None on the standard list

A vendor is the supplier named by the agency. It does not identify the underlying model or AI technology.

Data and privacy

Involves PII
No
Privacy Impact Assessment
Not reported
Authorization to Operate
Yes
Demographic features
k) None of the above
Training and evaluation data
Not reported
Federal Data Catalog
Not reported

Governance

0 of 8 minimum-practice questions answered. A blank answer means the agency reported nothing; it does not mean the practice is absent.

Pre-deployment testingNo answer reported
AI impact assessmentNo answer reported
Independent reviewNo answer reported
Ongoing monitoringNo answer reported
Operator trainingNo answer reported
Fail-safeNo answer reported
Appeal processNo answer reported
User and public consultationNo answer reported

Potential impacts and how they were identified

Not reported