Understanding Dates of Service

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Charges & billing · Charge entry

Understanding Dates of Service #

Each charge row has DOS From and DOS To fields that describe the service period for that charge.

DOS From and DOS To #

  • DOS From is the beginning of the service period.
  • DOS To is the end of the service period.
  • For a single-day service, enter that date in both fields unless your practice’s workflow specifies otherwise.
  • Use a range only when the documented service and billing rules support it.

Enter or correct dates #

  1. Select the patient and case.
  2. Add a row or select the existing row.
  3. Enter or correct both dates.
  4. Confirm DOS To is not earlier than DOS From.
  5. Review the code, provider, diagnosis pointers, POS, units, and amount.
  6. Save with F2.
Phoenix Charges and Payments screen showing patient and case context, charge detail columns, balances, and accounting summary

Do not confuse these dates

Billing Created Date is separate from the row’s dates of service. Fee-schedule effective dates are also separate. Follow the practice’s correction workflow before changing dates on a charge with claim, payment, or adjustment activity.

Updated on September 18, 2026