For refilling and maintenance, you would select from CPT codes 95990/95991. Programmable pumps require reprogramming at the time of refill so you would also charge for 62368. An authoritative source for this information would be
CPT Assistant, July 2006, Volume 16, Issue 7
Excerpt:
The electronic analysis and/or reprogramming of programmable implantable infusion pumps is reported separately by the use of CPT codes 62367, Electronic analysis of programmable, implanted pump for intrathecal or epidural drug infusion; without reprogramming, or 62368, Electronic analysis of programmable, implanted pump for intrathecal or epidural drug infusion ; with reprogramming, when performed at the same session as the refill and maintenance of the implantable pump or reservoir. A parenthetical note following code 95990 instructs users to refer to these codes for analysis and/or reprogramming. A point of significant consideration with respect to programmable pumps is that they require reprogramming at the time of refill
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