Hospitals & health systems
Enterprise CDS for medication safety, sepsis, and care-pathway adherence.
Clinical Decision Support (CDS)
What is Clinical Decision Support?
Clinical decision support (CDS) is software that gives clinicians patient-specific guidance at the moment they make a decision, such as a drug-interaction warning when ordering or a care-gap prompt when opening a chart. CDS can be rules, risk models or reference content, and HL7's CDS Hooks standard lets it run inside the EHR workflow.
CDS HooksFHIR R4SMART on FHIRHIPAA-Ready
Trusted by global innovators
How does clinical decision support work?
Clinical decision support works by listening for events in the clinician's workflow, such as ordering a medication or opening a chart, and returning guidance in context. CDS Hooks lets your logic subscribe to EHR workflow events; SMART on FHIR apps handle richer interactions.
The real challenge is signal versus noise: poorly tuned alerts get overridden reflexively. We build severity-tiered, deduplicated, context-aware alerts against curated knowledge bases, so warnings that matter get attention.
What it is
Why does CDS matter for software teams?
Clinical decision support software delivers evidence-based guidance to clinicians inside their workflow: drug-interaction checks, order recommendations, risk alerts, and care-pathway prompts. The modern standard for delivering it in context is CDS Hooks, often paired with SMART on FHIR apps.
We build CDS that is workflow-native and carefully tuned, so alerts guide care instead of being reflexively dismissed. It is engineered around signal, safety, and clinician trust.
How does a CDS Hooks architecture work?
A CDS architecture built on CDS Hooks and FHIR: workflow events in, context-aware, severity-tiered guidance out.
How does Agnotic work with CDS?
Decision support that lives in the workflow and respects the clinician's attention.
CDS Hooks Integration
Your logic subscribes to workflow events (order-select, order-sign, patient-view, encounter-start) via CDS Hooks and returns cards in context, so guidance appears exactly where the decision happens inside the EHR.
Drug-Interaction Checking
Real-time drug-drug, drug-allergy, and drug-condition interaction checks against curated knowledge bases and RxNorm-coded medications, surfaced at order entry before a prescription is signed.
Alert Tuning & Fatigue Control
Severity-tiered, deduplicated, and context-aware alerts with override tracking and analytics, so high-value warnings cut through and low-value interruptions are suppressed to fight alert fatigue.
Evidence-Based & Predictive Logic
Rule-based pathways plus optional risk models (sepsis, readmission, deterioration) trained and validated on your data, with transparent rationale so clinicians can trust and audit each recommendation.
SMART on FHIR Apps
Richer decision-support experiences delivered as SMART on FHIR apps launched from the CDS card, reading FHIR R4 resources for full clinical context.
Governance & Auditability
Versioned rule sets, clinical review workflows, and immutable logging of every alert fired and overridden, essential for safety, quality reporting, and HIPAA accountability.
Where it fits
How is CDS used in practice?
Providers and vendors who want guidance to reach clinicians at the right moment.
EHR & health-IT vendors
CDS Hooks and SMART on FHIR services embedded in their platform.
Specialty care programs
Condition-specific pathways for oncology, cardiology, and chronic disease.
Pharmacy & medication safety
Interaction and dosing checks integrated into prescribing.
Value-based care organizations
Prompts that close care gaps and support quality measures.
Digital health platforms
Embedded, evidence-based guidance in their own clinical tools.
Which alerts do clinicians act on?
The measure of good CDS is not how many alerts fire; it is how many change a decision. We engineer for signal.
CDS Hooks
Workflow-native guidance at the decision point
Severity-tiered
Alerts tuned to fight override fatigue
Override rate
Tracked for every alert after launch
Compliance-First Healthcare App Development Services Backed by Global Standards
15-Minute Scoping Call01
HIPAA
Health Insurance Portability and Accountability Act
Protect PHI with privacy-first architecture, encrypted storage and transmission, strict access controls, and traceable audit logs.
02
GDPR
General Data Protection Regulation
Implement lawful consent flows, data minimization, retention controls, and secure processing for sensitive health data.
03
FHIR
Fast Healthcare Interoperability Resources
Enable standardized health data exchange across apps, care teams, and systems through standards-based FHIR APIs.
04
HL7
Health Level Seven International
Support enterprise-grade interoperability with HL7-based integrations for records, events, and clinical messaging workflows.
05
HITRUST
Health Information Trust Alliance
Align security programs to healthcare-specific control and risk management practices trusted by providers and ecosystem partners.
06
HITECH
Health Information Technology for Economic and Clinical Health Act
Design with breach notification readiness, digital record safeguards, and operational controls that support regulated care programs.
07
SaMD
FDA Software as a Medical Device
Plan software quality, traceability, and documentation pathways for products that may require SaMD review and submission.
08
MDR (EU)
Medical Device Regulation (European Union)
Prepare EU market-ready processes for risk classification, evidence tracking, and lifecycle governance under MDR expectations.
09
SAMHSA
Substance Abuse and Mental Health Services Administration
Apply confidentiality controls and consent-aware sharing models for behavioral and mental health data experiences.
Standards and compliance
Which standards and terms relate to CDS?
CDSFHIRSMARTRxNormSNOMEDHIPAA
Our Process
How do we build CDS?
We start from the decisions you want to influence, then engineer the alerts to be trusted, not ignored.
1.
Discovery & Rule Design
We identify the clinical decisions to support, the workflow events to hook, and the knowledge sources, then design the rule and severity model with your clinical leaders.
Clinician-governed
2.
CDS Hooks Services
We build the CDS Hooks services and card logic, wire drug-interaction and clinical knowledge bases, and connect FHIR R4 for patient context.
Workflow-native
3.
Tuning & Validation
We simulate against real order patterns, measure alert and override rates, and tune severity and suppression to control fatigue before go-live.
Fatigue-tested
4.
Deploy & Monitor
Phased rollout with alert analytics dashboards and governance workflows to refine rules continuously in production.
Continuously refined
Facts and sources
Which standards and rules define CDS?
Short facts we design around, each linked to its primary source.
CDS Hooks is an HL7 specification that lets an EHR call an external decision support service at points in the clinician's workflow, such as opening a chart or signing an order.
Source: HL7 International (CDS Hooks)FDA's Clinical Decision Support Software guidance explains which decision support functions meet the non-device criteria in section 520(o)(1)(E) of the FD&C Act and which remain device software functions.
Source: FDA guidance, Clinical Decision Support SoftwareThe SMART App Launch implementation guide uses OAuth 2.0 and OpenID Connect so that apps can launch from an EHR with the user's and patient's context and only the access scopes they were granted.
Source: HL7 International (SMART App Launch)The HIPAA Security Rule requires administrative, physical and technical safeguards for electronic protected health information.
Source: 45 CFR Part 164 Subpart C (eCFR)
Featured case study
Read Case StudyLera Health: compliant women's health platform
Related proof of compliant clinical delivery: for Lera Health we turned biomarker data into personalized, rules-driven care guidance on a privacy-first data layer. It illustrates how we build trustworthy, evidence-based logic on PHI: the same discipline a CDS build demands.
Why Partner With Us
15-Minute Scoping CallWhy build CDS with Agnotic?
We build decision support clinicians trust: workflow-native, evidence-based, and tuned against alert fatigue.
Safety-First Engineering
Versioned rules, clinical review, and full audit trails so decision support is safe, transparent, and defensible.
Fatigue-Aware Design
Severity tiering, deduplication, and override analytics so alerts that matter get attention and noise gets suppressed.
Clinician-Governed Logic
We build the tooling for your clinical leaders to own, review, and evolve the rules, not a black box.
Standards & AI Fluency
Deep CDS Hooks, FHIR, and clinical-ML experience so rule-based and predictive support work together correctly.
Our clinical decision support experience
Guidance at the point of decision
Frequently Asked Questions
Cost depends on scope: a focused drug-interaction service is far cheaper than a suite of risk models and care pathways with governance tooling. Much of the investment is in tuning and validation to control alert fatigue, not just building rules. We scope in phases and provide a fixed estimate before starting.
A practice, delivered by software. CDS describes any tool that gives clinicians patient-specific guidance: it can be built into the EHR, bought as a knowledge base or built as a custom service. CDS Hooks is the HL7 specification for delivering it inside the EHR workflow.
Clinical owners decide the logic, usually a pharmacy and therapeutics or CDS governance committee, and engineers maintain the services. Rules and models need versioning, review dates and override monitoring, because guidelines and drug knowledge change.
Some is. FDA's Clinical Decision Support Software guidance explains which CDS functions meet the non-device criteria in section 520(o)(1)(E) of the FD&C Act. Software that analyzes medical images or signals, or whose basis a clinician cannot independently review, may be a device. We work with your regulatory advisors on that call.
If clinicians act on your product's output during care, you are probably building some form of CDS, whatever you call it. Treating it as CDS early means designing for alert fatigue, auditability, clinical governance and the FDA question from the start.
It depends on scope, and the tuning phase matters as much as the build. We deliver the CDS Hooks services and core rules first, then spend real time validating alert and override rates before wide rollout. We give you a timeline after the scoping call.
Buy a knowledge base or drug-interaction database: those are best sourced from specialized vendors, and we integrate them. Build custom for the delivery layer, workflow integration, tuning, and any predictive models specific to your population. We typically combine curated third-party knowledge with a custom CDS Hooks delivery and governance layer.
We integrate via CDS Hooks, which most modern EHRs support, so your logic subscribes to workflow events and returns guidance cards in context. Richer interactions launch as SMART on FHIR apps that read FHIR R4 resources for full patient context.
We tier alerts by severity, deduplicate, suppress low-value warnings, and track override rates continuously. During validation we simulate against real order patterns and tune thresholds, then keep refining in production using override analytics, so the alerts that fire are the ones worth interrupting for.
We handle PHI under the HIPAA Security Rule with encryption, access control, and immutable logging of every alert fired and overridden, which also supports clinical safety review and quality reporting.
Ready for decision support clinicians trust?
Tell us the decisions you want to support. We'll return a plan for CDS Hooks-based guidance with drug-interaction checking and alert tuning built to avoid fatigue.
contact@agnotic.com
Partnerships
contact@agnotic.com