Agentic Index
Fathom vs XpertDox (2026)
Both vendors last verified
Fathom and XpertDox both sell autonomous medical coding through sales, with no public price, and both send confident encounters to billing and the rest to human coders. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.
Fathom codes incoming charts direct to bill, audits the customer's coders in real time and codes risk adjustment for health plans, stating HITRUST, HIPAA and SOC 2 Type 2 audits. XpertDox's XpertCoding serves ambulatory and outpatient groups, coding encounters and submitting claims, about 94 percent without human intervention and most within 24 hours, and connects to EHRs by API, FHIR, HL7 and screen automation. XpertDox connects to NextGen, eClinicalWorks, athenahealth, ModMed, Epic and custom EHRs, typically in 1 to 4 weeks, while Fathom sells coder audit and risk adjustment as ready products beside autonomous coding. Choose Fathom for risk adjustment and coder audit alongside autonomous coding, and XpertDox for an ambulatory group, including one whose EHR has no usable API.
On the Agentic Index healthcare agent ranking, neither Fathom nor XpertDox clears the bar, which asks for all five chart loop capabilities documented in full. Fathom documents none of the five in full; XpertDox documents two 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. Fathom and XpertDox 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 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.
- A HITRUST audit is a requirement.
Choose XpertDox if
- You are an ambulatory or outpatient group, or you buy through a billing company partner.
- Your EHR has no usable API, so the engine must work through its screens.
- Your EHR is NextGen, eClinicalWorks, athenahealth or ModMed, and you want each claim's changes tracked.
| Feature | F Fathom |
X XpertDox |
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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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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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XpertDoxIntegrations & Tool Calling XpertCoding connects to NextGen, eClinicalWorks, athenahealth, Experity, ModMed, Epic and custom EHRs by API, SMART on FHIR, HL7 ADT messaging and RPA. It is listed on the athenahealth Marketplace and submits claims with any EHR, and connecting a major EHR takes 1 to 4 weeks. Sourcexpertdox.com/ehr-connectionsread 2026-09-29 |
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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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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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XpertDoxWorkflow Orchestration Each encounter runs from data extraction through code assignment to claim submission. One condition splits the flow. About 94 percent of claims complete without human intervention, and the rest go to manual review, which the BI platform monitors. XpertDox says the result lets a practice shrink its coding and billing team by as much as 90%. SourceXpertDox, xpertdox.com/xpertcoding and xpertdox.comread 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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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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XpertDoxTriggers & Channel Coverage Encounters arrive through HL7 ADT messaging, FHIR, API or RPA feeds and are coded and submitted as their data arrives, without anyone initiating each one, most within 24 hours. Sourcexpertdox.com/ehr-connectionsread 2026-09-29 |
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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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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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XpertDoxKnowledge Grounding & RAG The engine reads each encounter's documentation with natural language processing and analytics and applies payor guidelines. XpertDox names no maintained knowledge structure over the customer's records or payer rules and does not say whether the engine adapts to evolving coding standards. SourceXpertDox, xpertdox.com/xpertcoding and xpertdox.comread 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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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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XpertDoxMemory & State Persistence Each encounter is coded from its own documentation, and XpertDox names no memory the engine keeps. SourceXpertDox, xpertdox.com/xpertcodingread 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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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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XpertDoxHuman Oversight & Guardrails People review only the exceptions. About 94 percent of claims are coded and submitted without human intervention and the remainder go to manual review, with no approval step before automated claims commit. Sourcexpertdox.com/blog/computer-assisted-coding-vs-autonomous-medical-coding-airead 2026-09-29 |
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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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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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XpertDoxSecurity, Identity & Governance XpertDox holds SOC 2 Type 2, ISO/IEC 27001 and ISO/IEC 22301 and states HIPAA compliance. Its enterprise security features control who can access, modify or delete data, access to critical systems is reviewed periodically, and the network and servers get quarterly penetration tests. XpertDox names no SSO, roles or permissions that customers operate. SourceXpertDox, xpertdox.com/securityandcomplianceread 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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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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XpertDoxObservability & Auditability The BI platform shows every claim XpertCoding coded on one screen, and its audit trail tracks all modifications the engine makes, with manual review monitoring and daily reports. Risk adjustment (HCC) and quality measures dashboards sit alongside, so each claim's changes can be traced. SourceXpertDox, xpertdox.com/xpertcodingread 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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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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XpertDoxDeployment & Data Residency No hosting provider or region is published, and XpertDox names no residency choice or customer environment option. SourceXpertDox, xpertdox.com/securityandcomplianceread 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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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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XpertDoxPrebuilt Agents, Templates & Packs One coding engine comes with a companion BI platform. The urgent care, primary care and pediatric offerings are specialty segments of that engine, not separate packaged agents. Customers include Stanford University, Bon Secours Mercy Health, FastMed Urgent Care, PM Pediatrics, NAO Medical and Lone Star Circle of Care. SourceXpertDox, xpertdox.com and /xpertcodingread 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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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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XpertDoxModel Flexibility & Routing XpertCoding runs on what XpertDox calls hybrid AI, combining ensemble models, neural networks and symbolic reasoning with payor guidelines, alongside natural language processing and advanced data analytics. XpertDox names no model provider and offers no customer choice of model. SourceXpertDox, xpertdox.com and /xpertcodingread 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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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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XpertDoxAPIs, SDKs & MCP Extensibility Developers get no published API, SDK or documentation for XpertCoding. Its API integrations are XpertDox's connections out to EHRs. Sourcexpertdox.com/sitemap.xmlread 2026-09-29 |
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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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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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XpertDoxTesting, Debugging & Optimization Outcome figures include over 99 percent coding accuracy and over 94 percent of claims within 24 hours, and NAO Medical reports 15% more charge capture and 60% more quality code capture. CDI feedback goes to providers about their documentation, not to the engine. XpertDox names no evaluation harness, test cases or learning loop. SourceXpertDox, xpertdox.com and /xpertcodingread 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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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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XpertDoxBrowser & Computer Use XpertDox's RPA bots work the EHR on the front end, with no backend integration, to retrieve the fields XpertCoding needs and post processed codes back, because most EHRs lack an API for posting claim data. Sourcexpertdox.com/blog/rpa-improves-ehr-interoperabilityread 2026-09-29 |
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Pricing snapshot
Sourced from the Index pricing dataset · open each vendor's profile for full detail.
| Pricing | F Fathom |
X XpertDox |
|---|---|---|
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Entry price Lowest public entry point |
Contact sales | 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 | Medium 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 |
Neither Fathom nor XpertDox publishes a price.
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