Actually it is -273.15 C, and the triple point of water is at a temperature of 273.16 K or 0.01 C. At standard atmospheric pressure water boils at 100 C and freezes at 0 C, which decides the size of the degree.
Anesthesia billing limitation. ï· An independent trained observer whose sole duty is to monitor the patientâs level of consciousness and physiological status must be present throughout the diagnostic or therapeutic service. The anesthesia note must identify this person and his credentials (e.g., RN, NPP, PA).
Therefore, conscious sedation for the first 30 minutes must span at least 16 minutes to be billed. Likewise, code 99145, conscious sedation for each additional 15 minutes, must have an intra-service time of at least eight minutes to be billed. You will need documentation of the conscious sedation (start and stop time) in order to bill for this service.