Anesthesia add on code 99100, 99116, 99135 and 99140

Not reimbursed separately but should be billed when appropriate 

99100 – Anesthesia for Patient of Extreme Age, Under 1 Year and Over 70
99116 – Anesthesia Complicated By Utilization of Total Body Hypothermia
99135 – Anesthesia Complicated By Utilization of Controlled Hypotension
99140 – Anesthesia Complicated By Emergency Conditions

Non-reimbursable Services

Services billed by anesthesia assistants
Services provided by students

CRNA services performed by salaried facility employees

 Post-operative pain management on the same day as surgical procedure
 Anesthesia by the operating surgeon
 Anesthesia stand by
 Anesthesia for procedures not designated as requiring anesthesia
 Anesthesia for non-covered surgical procedures

Physical Status Modifiers

No additional reimbursement will be made when these modifiers are billed but should be submitted when appropriate

P1 Normal healthy patient
P2 Patient with mild systemic disease
P3 Patient with severe systemic disease
P4 Patient with severe systemic disease that is a constant threat to life
P5 Moribund patient who is not expected to survive without the operation
P6 Declared brain-dead patient whose organs are being removed for donor

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