What Are Occurrence Codes

Occurrence Codes identify a significant event relating to an institutional claim that may affect payer processing. These codes are claim-related occurrences that are related to a time period (span of dates).

What is occurrence code ub04?

Event codes are two alpha- numeric digits, and dates are six numeric digits (MMDDYY). When occurrence codes 01-04 and 24 are entered, the provider must make sure the entry includes the appropriate value code in FLs 39-41, if there is another payer involved. Occurrence and occurrence span codes are mutually exclusive.

Is occurrence code 11 required?

This code is used to report that the provider has developed for other casualty related payers and has determined there are none. (Additional development not needed.) 11 Onset of Symptoms/Illness Code indicates the date patient first became aware of symptoms/illness.