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Release Notes:
Data Element
Version 2010B

Data Element Name: Anesthesia Start Date
Collected For: BM-06,
Definition:The date the anesthesia for the procedure started.
Suggested Data Collection Question:On what date did the anesthesia for the procedure start?
Length:10 – MM-DD-YYYY (includes dashes)
Allowable Values:


MM = Month (01-12)
DD = Day (01-31)
YYYY = Year (2001-Current Year)
Leave Blank if Unable to Determine

Notes for Abstraction:If the Anesthesia Start Date cannot be determined from medical record documentation, enter UTD. When the date documented is obviously invalid (not a valid format/range [12-39-20xx] or after the Discharge Date or Anesthesia End Date) and no other documentation can be found that provides the correct information, the abstractor should select “UTD.”

Example: Patient expires on 02-12-20xx and documentation indicates the Anesthesia Start Date was 03-12-20xx. Other documentation in the medical record supports the date of death as being accurate, but no other documentation of the Anesthesia Start Date can be found. Since the Anesthesia Start Date is outside of the parameter for care (after the Discharge Date [death]) and no other documentation is found, the abstractor should leave blank.

If the Anesthesia Start Date is incorrect (in error) but it is a valid date and the correct date can be supported with other documentation in the medical record, the correct date may be entered. If supporting documentation of the correct date cannot be found, the medical record must be abstracted as documented or at “face value.”

Examples: The anesthesia form is dated 12-10-2007, but other documentation in the medical record supports that the correct date was 12-10-2009. Enter the correct date of 12-10-2009 as the Anesthesia Start Date.

An Anesthesia End Date of 11-20-20xx is documented but the Anesthesia Start Date is documented as 11-10-20xx. If no other documentation can be found to support another Anesthesia Start Date, then it must be abstracted as 11-10-20xx because the date is not considered invalid or outside the parameter of care.

Suggested Data Sources:

Other Suggested Sources:

  • Intraoperative record
  • Circulator record
  • Post-anesthesia evaluation record
  • Operating room notes
Additional Notes: Suggested Data Sources:

Note: The anesthesia record is the priority data source for this data element, if a valid Anesthesia Start Date is found on the anesthesia record, use that date. If a valid date is not on the anesthesia record, other suggested data sources may be used in no particular order to determine the Anesthesia Start Date.

Priority Source:

  • Anesthesia record
Guidelines for Abstraction:
Inclusion Exclusion
None None

Anesthesia Start Date
Specifications Manual for Joint Commission National Quality Core Measures (2010B)
Discharges 10-01-10 (4Q10) through 03-31-11 (1Q11)