What is this Code?

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Across
  1. 4. Face, Arm, Speech, Time(F.A.S.T.)
  2. 7. Combative with a weapon
  3. 9. Toddler trot
  4. 10. Only called at SNMH
  5. 12. Must show ID to enter
  6. 16. Patient Concerns (only at MSJ)
  7. 18. Baby run
  8. 20. Frozen
  9. 24. High number of patients, same as surge
  10. 26. Booomm!
Down
  1. 1. Spilled it
  2. 2. Locks down ED only
  3. 3. Threat to Hospital
  4. 5. No air
  5. 6. Aggressive and Combative
  6. 8. Another name for a Cardiac Alert
  7. 11. Secure your location
  8. 13. Can be upgraded to a Tier 1
  9. 14. Medical emergency with a patient
  10. 15. Three Tiers
  11. 17. New life
  12. 19. I stem from the heart
  13. 21. I burn hot
  14. 22. Elopement
  15. 23. Non-patient medical emergency
  16. 25. Disaster internal or external