Agentic Index
Fathom Health vs Nym (2026)
Both automate medical coding at scale and they differ on breadth against transparency.
Fathom is KLAS validated at 90 percent plus automation, HITRUST i1 certified with a CVS Health Ventures strategic investment, spanning facility, professional fee, coding review and risk adjustment. Nym publishes a 95 percent confidence threshold above which encounters route to billing with zero human intervention, with full audit trails per code, across 5.5 million charts and 250 plus facilities, documenting 8 of 14 against 6. Fathom covers more workflows; Nym is clearer about when it decides alone.
Choose Fathom Health if
- Workflow breadth is the requirement: facility, professional fee, coding review and risk adjustment.
- HITRUST i1 certification is a compliance requirement rather than a preference.
- Independent KLAS validation of the automation rate is the evidence standard you apply.
Choose Nym if
- You want the confidence threshold published, so you know exactly where autonomy stops.
- Documented coverage is broader across the matrix.
- Per code audit trails are what your compliance team will ask to see first.
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