Health Information Management

Tip: Calculating time for hyperbaric oxygen treatment

APCs Insider, August 7, 2015

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CMS deleted HCPCS code C1300 (hyperbaric oxygen [HBO] under pressure, full body chamber, per 30 minute interval) effective January 1, 2015.
Instead, hospitals should report G0277, which has the same description as the previous code and is effective January 1, 2015. Providers can use the following elements when calculating the total number of 30-minute intervals reportable with the code:
  • Time spent by the patient under 100% oxygen
  • Time for descent
  • Time for air breaks
  • Time for ascent
Providers should not base the total number of billable 30-minute intervals solely on the time noted on the physician order. In order to safely reach 100% oxygen for 90 minutes, additional time may be required for descent, air breaks, and ascent. The time spent under pressure during those events can be calculated in the 30-minute intervals.
This tip is adapted from “CMS adds code pairs for complexity adjustment in July quarterly I/OCE update" in the August issue of Briefings on APCs.

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