What's New

Changelog

A running log of everything we ship. No fluff — just what changed and when.

February 2026Public Beta

Arceum public beta launches

  • —376 CARC codes (279 active, 97 deactivated) — official X12 verbatim descriptions
  • —712 RARC codes (656 active, 56 deactivated) — M/MA/N series, all X12 official
  • —176 common CARC+RARC combination records (CO, PR, OA, PI group codes)
  • —Combo Lookup tool — find pairings by CARC, RARC, or group code
  • —Resolution steps, payer notes (dental / medical / behavioral health), and appeal templates for top CARC codes
  • —Full-text search across all codes with specialty filter
  • —Blog with RCM guides for dental and medical billing teams
  • —Live at arceum-kappa.vercel.app