H1N1 diagnosis code

We will be giving the H1N1 vaccine to our OB patients. We also want to track patients that have been exposed to the virus. Has a specific ICD-9 been assigned?
I use the Ingenix updatable ICD-9 and found no distinct code for H1N1. I also looked at a draft fo the ICD-10, avian influenza was noted but not H1N1. Any suggestions:) I will use V04.81 for the vaccination, and assign an internal tracking for the exposure incidents. We are located in KY and have several death related cases, as well as several of our employee who have had exposure to infected children and grandchildren. Thanks:)

488.1

is the code for the disease- H1N1- we use it for pts who clinically have the flu even if rapid test negative since so far all the flu is H1N1 and no seasonal flu so far

h1n1

We are billing-90470 V04.81 to commercial insurances and G9141 V04.81 to medicare