Agentic Index
CodaMetrix vs Fathom (2026)
Both vendors last verified
CodaMetrix and Fathom both sell autonomous medical coding through sales, with no public price. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.
CodaMetrix's CMX CARE platform builds a longitudinal patient timeline from EHR and ancillary data and codes and bills cases touchlessly. Epic carries it in the Epic Toolbox, and KLAS named it Best in KLAS for autonomous coding in 2026. Fathom codes incoming charts direct to bill, passes the rest to the customer's coders, audits coders' work in real time and codes risk adjustment for health plans. CodaMetrix feeds every coder reviewed decision back into the platform through CMX Amplify, while Fathom holds audited HITRUST i1 and SOC 2 Type 2 compliance, where CodaMetrix names none. Choose CodaMetrix if you run Epic and want coding from the whole record. Choose Fathom for risk adjustment and coder audit alongside autonomous coding.
On the Agentic Index healthcare agent ranking, neither CodaMetrix nor Fathom clears the bar, which asks for all five chart loop capabilities documented in full. CodaMetrix documents two of the five in full; Fathom documents none of the five in full. 4 of the 69 vendors in the lane clear it. See the healthcare agent ranking
This comparison is published by Agentic Index, an independent agentic AI vendor research platform. CodaMetrix and Fathom are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 1,084 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded
Choose CodaMetrix if
- Coding should draw on a longitudinal timeline built from EHR and ancillary data.
- Your health system runs Epic and values the Epic Toolbox approval.
- The coding engine should learn from every decision your coders review.
Choose Fathom if
- You code risk adjustment for a health plan as well as provider charts.
- Your coders' own work should be audited in real time.
- Your security review asks for HITRUST and SOC 2 Type 2 audits.
| Feature | C CodaMetrix |
F Fathom |
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| Action & orchestration | ||
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Integrations & Tool Calling Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools. |
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CodaMetrixIntegrations & Tool Calling CMX CARE ingests clinical notes, registration events, surgical schedules, orders, charges and provider information from the EHR and ancillary systems, is Epic Toolbox approved, and codes and bills cases touchlessly inside the health system's workflow while coders stay in their native environment. Health systems using it include Mass General Brigham, Mayo Clinic, Cedars-Sinai, UCSF, Yale New Haven Health, Emory Healthcare and Henry Ford Health. SourceCodaMetrix, codametrix.comread 2026-10-06 |
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FathomIntegrations & Tool Calling Coded charts go direct to bill, and the Your Health deployment connected to athenahealth through Data View across all care settings in one deployment. No integration catalog, write back mechanism or list of supported EHRs is published by Fathom. SourceFathom, fathomhealth.com/insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-lines and /servicesread 2026-10-06 |
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Workflow Orchestration Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps. |
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CodaMetrixWorkflow Orchestration CMX CARE ingests data across the care continuum, unifies the patient story across providers and facilities, and identifies services, diagnoses and documentation gaps. CMX Automate then codes and bills cases touchlessly with human review retained where needed, for both facility and professional fee coding. SourceCodaMetrix, codametrix.com and /our-solutionread 2026-10-06 |
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FathomWorkflow Orchestration In one step, incoming charts are reviewed, those the system can code are coded and sent direct to bill, and the remainder pass to the customer's coding operation, across facility and professional fee service lines and every place of service. Each chart is either coded without a touch or routed to a coder, and no flow builder is offered. SourceFathom, fathomhealth.com/services and /insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-linesread 2026-10-06 |
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Triggers & Channel Coverage How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools. |
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CodaMetrixTriggers & Channel Coverage The platform applies codes as soon as the relevant data is present rather than when a coder is available, working from registration events, orders and charges as they arrive, with no one prompting it. SourceCodaMetrix, codametrix.com/our-solutionread 2026-10-06 |
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FathomTriggers & Channel Coverage Incoming charts reach the system without a person launching each one, and the audit product looks at every coded chart in real time. Fathom does not describe how charts are fed in. SourceFathom, fathomhealth.com/servicesread 2026-10-06 |
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| Knowledge & context | ||
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Knowledge Grounding & RAG Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers. |
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CodaMetrixKnowledge Grounding & RAG CMX CARE turns clinical documentation from the EHR and ancillary systems into a longitudinal timeline centered on the patient, spanning days, providers and settings, and the coding draws on it. Clinical notes, registration events, surgical schedules, orders and charges all feed that timeline. SourceCodaMetrix, codametrix.com and /our-solutionread 2026-10-06 |
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FathomKnowledge Grounding & RAG Codes are calibrated to the customer's coding guidelines and payer mix. At Your Health that reaches down to ICD sequencing and combination codes, G2211 add on capture and modifier 25 handling. Revised guidelines such as the emergency medicine E/M changes are adopted centrally. The coding knowledge lives in a model trained on more than 750 million encounters, and Fathom names no maintained knowledge source the system retrieves from. SourceFathom, fathomhealth.com/insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-linesread 2026-10-06 |
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Memory & State Persistence Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer. |
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CodaMetrixMemory & State Persistence The platform learns from the health system's coding decisions, and the longitudinal record it builds is the patient's own record. CodaMetrix names no memory layer and does not say what one would keep or for how long. SourceCodaMetrix, codametrix.com/our-solutionread 2026-10-06 |
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FathomMemory & State Persistence Each chart is coded from its own documentation, against guidelines and payer mix calibrated for the customer. Fathom describes no memory layer. SourceFathom, fathomhealth.com/services and /insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-linesread 2026-10-06 |
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| Control & trust | ||
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Human Oversight & Guardrails Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls. |
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CodaMetrixHuman Oversight & Guardrails Cases are coded and billed touchlessly with no human intervention, while human review stays in place where needed and coders work in their own environment, so some cases stay with coders. CodaMetrix names no approval step or threshold that decides when a touchless code goes through without review. SourceCodaMetrix, codametrix.comread 2026-10-06 |
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FathomHuman Oversight & Guardrails Charts the system cannot code pass to the customer's coders, but coded charts go direct to bill with no human intervention required. Fathom names no approval step and publishes no threshold before a code commits. The audit product edits errors in coders' work and flags problematic coding for a person to review. SourceFathom, fathomhealth.com/services and fathomhealth.comread 2026-10-06 |
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Security, Identity & Governance RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy. |
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CodaMetrixSecurity, Identity & Governance Security detail sits in a Vanta trust center at trust.codametrix.com. CodaMetrix shows SOC, AWS and A-LIGN compliance logos in its website footer without naming a report or certificate. It names no SSO, roles or other access model. SourceCodaMetrix, codametrix.com and trust.codametrix.comread 2026-10-06 |
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FathomSecurity, Identity & Governance A Certified Public Accounting firm audited Fathom's HITRUST (i1 certified), HIPAA and SOC 2 Type 2 compliance. Its policies cover application and infrastructure security, business continuity, incident management, data privacy, threat and vulnerability management, disaster recovery, access management and workforce training. Vulnerabilities can be reported to security@fathomhealth.com. Access management is named only as a policy area, and Fathom names no SSO, roles or permission model for the customer's own users. SourceFathom, fathomhealth.com/securityread 2026-10-06 |
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Observability & Auditability Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior. |
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CodaMetrixObservability & Auditability CMX Insights reports automation performance in real time with benchmarking, and real time audit capabilities work as a feedback loop. CodaMetrix names no record per case of what the automation read and coded. SourceCodaMetrix, codametrix.com and the Series B announcement on codametrix.com/resourcesread 2026-10-06 |
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FathomObservability & Auditability There is no published record of what the automation read and coded for each chart, and no reporting surface. The Audit complete product looks at every coded chart and flags potential denials or unnecessary downcoding. It reviews the work of coders or a coding vendor, not the system's own actions. SourceFathom, fathomhealth.com/servicesread 2026-10-06 |
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Deployment & Data Residency Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting. |
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CodaMetrixDeployment & Data Residency CodaMetrix does not say where the platform is hosted. No hosting region is published, and CodaMetrix names no region choice, customer environment or on premises option. An AWS compliance logo sits in the site footer. SourceCodaMetrix, codametrix.com and /our-solutionread 2026-10-06 |
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FathomDeployment & Data Residency No hosting region, region choice, customer environment or on premises option is published. Fathom has infrastructure security and disaster recovery policies but does not say where the platform runs. SourceFathom, fathomhealth.com/securityread 2026-10-06 |
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| Solution readiness | ||
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Prebuilt Agents, Templates & Packs Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value. |
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CodaMetrixPrebuilt Agents, Templates & Packs CMX Automate (touchless coding), CMX Amplify (feedback workflow) and CMX Insights (performance reporting) are modules of the one CMX CARE platform and depend on each other rather than standing alone. Coverage spans radiology, pathology, endoscopy, emergency medicine and inpatient professional fees within that one platform, with no separate agent sold for each specialty. SourceCodaMetrix, codametrix.com and /our-solutionread 2026-10-06 |
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FathomPrebuilt Agents, Templates & Packs There are three separate offerings. Coding automation handles facility and professional fee charts with E/M capture and provider assignment, Audit complete checks a coder's or coding vendor's work in real time, and retrospective risk adjustment coding for health plans and value based providers captures HCCs exhaustively for accurate RAF scores and has its own RFP guide. Fathom reports more than 63 million encounters coded. SourceFathom, fathomhealth.com and /servicesread 2026-10-06 |
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| Platform extensibility | ||
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Model Flexibility & Routing Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys. |
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CodaMetrixModel Flexibility & Routing The platform is called AI powered, but CodaMetrix names no model provider and no way for the customer to choose a model. Sourcecodametrix.com/our-solutionread 2026-09-29 |
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FathomModel Flexibility & Routing Fathom runs its own deep learning and NLP models, trained on over 750 million patient encounters, with no customer model choice or routing. SourceFathom, fathomhealth.com/insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-lines; fathomhealth.com/insights/fathom-secures-strategic-investment-from-cvs-health-ventures-to-accelerate-enterprise-wide-autonomous-codingread 2026-10-06 |
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APIs, SDKs & MCP Extensibility Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems. |
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CodaMetrixAPIs, SDKs & MCP Extensibility The CMX platform has no published API, SDK or MCP server. Integration follows Epic Toolbox standards. Sourcecodametrix.comread 2026-09-29 |
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FathomAPIs, SDKs & MCP Extensibility Fathom publishes no API, SDK or MCP server for its platform, and the one named EHR connection runs through athenahealth's Data View. SourceFathom, fathomhealth.com and /insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-linesread 2026-10-06 |
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Testing, Debugging & Optimization Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment. |
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CodaMetrixTesting, Debugging & Optimization CMX Amplify feeds every coder reviewed decision back into the platform, which learns in real time from the health system's coding decisions and keeps improving after deployment. Coding accuracy is validated through Rosetta, CodaMetrix's coding quality framework, and a Coding Quality Council of industry experts reviews real world performance. CodaMetrix reports 70% less manual coding, turnaround five times faster, 60% fewer coding denials and 30% lower coding costs. SourceCodaMetrix, codametrix.com and /coding-quality-accuracy-benchmarkread 2026-10-06 |
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FathomTesting, Debugging & Optimization No evaluation harness, test set or quality gate for the customer to run on the automation is published. Before go live, Fathom runs a proof of concept on a high volume of the customer's encounters and measures accuracy at the encounter level. At Your Health, accuracy rose from 96.3% to 98.3% and 95.5% of encounters were coded on day one. KLAS surveys are third party customer interviews, and the Audit product reviews coders' work. SourceFathom, fathomhealth.com/insights/your-health-deploys-fathom-autonomous-medical-coding-to-achieve-95-5-automation-rate-at-98-3-accuracy-rate-across-all-service-lines and /services; fathomhealth.com/servicesread 2026-10-06 |
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| Specialist automation | ||
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Browser & Computer Use Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone. |
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CodaMetrixBrowser & Computer Use The platform works through EHR and ancillary system integrations. CodaMetrix names no browser, desktop or computer control. Sourcecodametrix.comread 2026-09-29 |
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FathomBrowser & Computer Use The system codes from clinical documentation and sends charts to billing. Fathom names no browser, desktop or computer control. SourceFathom, fathomhealth.com/servicesread 2026-10-06 |
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Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing | C CodaMetrix |
F Fathom |
|---|---|---|
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Entry price Lowest public entry point |
Contact sales; no pricing published | Contact sales |
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Pricing confidence How public the numbers are |
Contact only | Contact only |
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Billing Primary billing axis |
— | — |
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Variable cost Workload / overage exposure |
High variable cost | High variable cost |
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Free tier / trial Try before you buy |
No free tier
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No free tier
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Buying motion Self-serve vs sales call |
Sales call | Sales call |
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Pricing verified When this pricing was last checked |
The outcome figures on both sides are the vendors' own.
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