Which statement is true about Block 23 dates?

Which statement is true about Block 23 dates?

• A. They must be entered in mmddyy or mmddccyy formats
• B. They must be in yyyy-mm-dd format
• C. They can be left blank if services span multiple days
• D. They must be entered as mmddyyyy only

Answer: (A)

Dates of service in Block 23 are entered to show the period covered by the services, and the format can be either mmddyy or mmddccyy. This means you can write the date with a two-digit year or with a four-digit year. The flexibility is there to accommodate older paper forms and newer electronic submissions. Formats like yyyy-mm-dd aren’t used on the CMS-1500 form, so they wouldn’t be correct for Block 23. If services span multiple days, you must include the date range (from and to) rather than leaving it blank. You’re not limited to mmddyyyy only; either mmddyy or mmddccyy is acceptable. If only a single date applies, use that date for the entire range.

Dates of service in Block 23 are entered to show the period covered by the services, and the format can be either mmddyy or mmddccyy. This means you can write the date with a two-digit year or with a four-digit year. The flexibility is there to accommodate older paper forms and newer electronic submissions. Formats like yyyy-mm-dd aren’t used on the CMS-1500 form, so they wouldn’t be correct for Block 23. If services span multiple days, you must include the date range (from and to) rather than leaving it blank. You’re not limited to mmddyyyy only; either mmddyy or mmddccyy is acceptable. If only a single date applies, use that date for the entire range.