V codes are used when the underlying diagnosis is no longer active. If the infection is still active, the v code is not needed. You code the type of infection and the infectious organism secondary. If you were flushing a PICC or access port to keep it patent, this would be the v58.81 "Fitting & adjustment of vascular catheter". There is also v58.3 "Attention to surgical dressings and sutures" that would cover the dressing changes if it qualifies as a surgical site. The pneumonia is not a case-mix diagnosis, so MO245 does not apply. Then, if you add labs like a vanco peak and trough, you can also look at the v58.62 "Long-term (current) use of antibiotics" or if you were only in to do a follow up lab for drug monitoring, it could be v58.83, "Encounter for therapeutic drug monitoring". Did that help ?
The few IV situations I coded were normally clear cut, either the ATB to treat active infections or just a flush and patch. The MO250 will indicate that the pt has IV infusion in the home; this is where your PPS score is triggered. This looks like it would be MO230 Aspiration pneumonia MO240 Organism and last, the decub.
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