B1Occurrence CodeInsured B

Reports the birthdate of the secondary insured individual (Insured B).

Related Insured B codes

B2Reports the effective date of the secondary insured's (Insured B's) policy.B3Reports the date the secondary payer's (Payer B's) benefits were exhausted.

Frequently asked questions

What does occurrence code B1 mean?

Reports the birthdate of the secondary insured individual (Insured B).

What category is occurrence code B1 in?

B1 falls under the Insured B category of UB-04 occurrence codes.

Descriptions sourced from CMS Medicare Claims Processing Manual. Always verify codes with authoritative sources before making billing decisions.