Read the CPT Guidelines
Read the CPT Guidelines - 2009 CPT professional edition, page 32, bottom of right hand column. They read in part: When normal newborn services are provided by the same physician on the same date that the newborn later becomes ill and receives additional intensive or critical care service, report the appropriate E/M code with modifier 25 for these services in addition to the normal newborn code.
And on page 33, right hand column we find: If inpatient critical care services are reported in the referring facility prior to transfer to the receviing hospital, use the critical care codes (99291, 99292).
It's hard to tell from your note if the baby was critically ill. But I do think you are on the right track.
Hope that helps.
F Tessa Bartels, CPC, CEMC